28/02/2023. . Steel Rear Sprocket, 38Tooth ( 73-83)TX/XS650. Shipping and handling. Putting your head in the sand is no way to be a responsible vintage motorcycle caretaker. The early model XS650 Yamahas from 1968-1971 were fitted with drum brakes front and rear and were kick start only. All highly desirable things when you're building a performance engine. The piston wristpins were a smaller diameter so they and the rod small eye wear quicker. Katana, GS1000S; Yamaha XS650, RD400 Daytona, TZ; Kawaski H1, H2, Z1R - and . The Crank and Cam are both rephased for a matched set. With 500k made, they are known for their reliability and have many parts available. Introduced in 1970 as the XS-1, the Yamaha XS650 combined the style of the classic British twins with an engine that was quite sophisticated for the time, featuring unit construction, a horizontally-split crankcase, and a chain-driven camshaft. It belongs to Drogo Michie, who turned to various shops to execute his vision. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires.Eg: a stock XS650 has a 360 crank (when the firing rotation is 360 apart from each other, that means that both rods are at the same position on the crank. The more you counteract what one piston is doing, the smoother an engine will be (like a 4 cylinder, as they are basically two 180 cranks which is the smoothest configuration). ( 0.050- 0.055mm). Orient Express high performance motorcycle parts since 1973! There's a pinging sound coming from your engine. Big Bore Cylinder and Piston Kit. . Dont worry, though, we have piston rings for veintage motorycles. Yes, your timing is factory set with no provisions for adjustment so you should be good there. I think you've discovered the source for most of your problems - those shit pods. Here weve picked five of our favorite Yamaha XS650 customs, showcasing its versatility and potential. No. Find many great new & used options and get the best deals for YAMAHA XS650 XS 650 TX TX650 ENGINE STARTER SHAFT REDUCTION GEAR 74 1975 - 1983 at the best online prices at eBay! . Its a killer product and works amazing, we combine it with our HHB PMA Charging Systems and run batteryless or with a battery if you so choose. The tail unit has a classic flat tracker shape, but is made from carbon fibre. Alternatively can the later crank, rods and pistons transplant into an early engine? If left unchecked, they will fail. Thanks for that 5twins. COPYRIGHT 2008-document.write(new Date().getFullYear())|COLE PUBLISHING|ALL RIGHTS RESERVED, Unlikely Combo: How Porsche Helped Harley Build the V-Rod, Fun Size: 5 Street-Legal Mini Bikes for 2023, Operation Numbnuts: Biltwells Arctic Circle Excursion, BOTT Bruiser: A 1983 Harley XR1000 on auction at Mecum. Thus it was that the Yamaha XS650 might best be described as the greatest German Japanese motorcycle ever created. Don't you hear it? TC Bros. TC Bros. XS650 Billet Aluminum Intake Manifolds. 77 YAMAHA XS650D XS650 XS 650 D FORK TRIM. . + Postage. Theres also a full custom exhaust system, and the engines been bored out, had its compression raised and been tuned for maximum torque. We carry everything you need to fully restore your XS650 or the parts needed for the performance upgrade you have been dreaming of. Ripper pushbike. 500 parts/price list. Pro-1 Racing Engine Builder Series. CNC Performance Valve Job $160.00. Ducati Pantah by Purpose Built Moto We have a soft . I also believe the 447 superior in support and parts availability. I have these in 447,256 and 533. The set with the 135 main came in the 78 or 79. $169.95 Other changes also needles and needle jets so the 135 main would not work well in the carbs with 122.5 main. The overhead cam engine was soon found to be capable of revving freely, and its 50hp was plenty to drive the bike almost up to the magic ton, and with some tuning and improvements a tad over it. In Europe, they also got a variation of the 447 which is called the 533. Thats our pick of the best Yamaha XS650s. Not sure why they did that. I operated alongside Halco tuning and as Palma tuning and built many very big bore motors, etc. We offer his kits in our store, or you modify an existing points ignition to run the rephased crank and cam. Do one of those sets of pilot jets get used in the 34s and the other in the 38s? We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. I also believe the 447 superior in support and parts availability. The Horex OHC parallel-twin engine was indeed destined for great things but not on behalf of the Horex motorcycle company which was purchased by Daimler-Benz and made defunct in 1960. LOTS of good info, and I really appreciate it. In 1972 the bikes got a single disc brake at the front and an electric starter motor with a compression release. These are 1mm over, PART# pRICE, 01 MAN . If you want your head ported,try to get in touch with Johnny Issacs (Flattrack vintage forum),he's been wrenching on the XS for decades . The appeal of an XS is that its the best Triumph ever made, why change the feel of something so good? Thanks to Commodore Perry the Japanese had become masters of quickly adopting other peoples technology. The only thing that changes are the ignition, crankshaft and camshaft. Brooklands Books 15 ISBN: 1 855 20574 2Read more Reviews, Letters, Opinion, News and Features online at www.classicbikeguide.com and in the August 2020 issue of Classic Bike Guide on sale now! But, like a snowball rolling down a hill, that minor engine issue can build, until it suddenly become a catastrophic. These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. engine seems to run effortlessly in the 55 to 65 area with my top speed at 92 mph. DO YOU HAVE A QUESTION? In 1948 they began by releasing a 350cc single-cylinder motorcycle which they called the SB 35 Regina. Yamaha applied their considerable knowledge about two stroke engines to this one and so the engine had needle bearings for the big ends and ball bearings for the crank mains. Posted Over 1 Month. JavaScript is disabled. Some folks just add parts so they can say that they've tuned the bike. Fabricate a 2-1 exhaust and either Mikuni VM or Keihin PWK carbs. If you start with a 495 lb Special and cut that down to 380 lbs (very do-able), that would be (assuming a stock HP of 48, which is what most good Specials dyno at) would give you an effective 64 HP (compared to the stock machine), which is highly modified XS650 territory. As if it wasnt punk-rock enough already, the words printed on either side of the fairing are lyrics from Sex Pistols Pretty Vacant. Hugh's HandBuilt 1970 Yamaha XS650; 1971 Yamaha XS650; 1972 Yamaha XS650; 1973 Yamaha XS650; 1974 Yamaha XS650; 1975 Yamaha XS650; 1976 Yamaha XS650; The mostly-black colour scheme is punctuated only by the red Hinomaru dot on the 60s style fairing, and the camouflage-style tank paint. [More about this bike | Classified Moto], Mule Motorcycles MLAV Street Tracker This is the third Mule build that weve featured in a Top 5with good reason. I actually did tear down the same motors and tried every combination possible. Its getting worse, but you dont notice because youve stopped listening. The camchain tensioner design in the later engines is also, IMO, better, as it properly addresses the chain's natural tendancy to 'fling-off' a sprocket, as compared to the earliest 256 design, which has it's lower tensioner block pressing outward at the exit side of the crankshaft sprocket. Articles that Ben has written have been covered onCNN, Popular Mechanics, Smithsonian Magazine,Road & Track Magazine,the official Pinterest blog, theofficialeBay Motorsblog, BuzzFeed, Autoweek Magazine, Wired Magazine, Autoblog, Gear Patrol, Jalopnik, The Verge, and many more. Thanks Hugh*. You already know that we are the Go-To people for XS650 Rephasing Services, weve been doing it since day one, and in all honesty it is what put Hughs HandBuilt on the map (next to our PMA Systems). Despite being destined for urban use, Michie ended up taking to the track after all, racing in the UK novice class. dalton1359 (3,442) 100%. Assembly Weight approx. Your comments in post #9 are most helpful..but do leave me with a question: You mention '20s' and '40s' and I'm not quite sure what you mean about that? Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. Kits come with pistons, pins clips and rings . All engines are (as) new from the inside and the outside. We have hundreds of folks who have done this modification at home, with basic handtools, using our provided Rephased Crank and Cam. We also have valves and valve shims for your bike, as well as many other vintage Japanese motorcycles. People love the way they pound the pavement when standing still on idle, how they snarl and growl like a big cat, and the bark they let out as you twitch open the throttle. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. Instructions and telephone tech support are . If you want an XS650 thats better on freeways,I cant help thinking you have the wrong bike. The "Special" cruiser model was introduced in 1978 and produced through 1985. Seller assumes all responsibility for this listing. My thoughts are that this subject should become a separate category, as it contains aspects of the Carb section, Ignition, Electrical, Engine Mechanical, and even the exhaust section. Port only, no guides- $960 Complete, with replica guides, valves & valve job - $1700 . The group consisted of Fabien Tourlan, otherwise known as "l'Atelier Les Bcanes", who specialises in vintage motorcycle restoration, Aymeric Romanowski of Atelier WIK and Bernard Christy, who deal in parts, and David Gallet Dadygraph and Laurent Chapus of Neway Designs . Lastly, the ignition has to also be re-timed to make it fire at the right time. YAMAHA XS 650 ENGINE STAND. Classic Yamaha XS650 Low Level Plain Metal Exhaust Pipes . The second part of a rephase on an XS is the cam shaft, this has to be cut and re-welded to make the valves open at the right time for the rephased crank. It could be something extremely minor, like running too-low octane fuel. Well, you would literally have to build the same engine twice and dyno it to prove that, as every casting on old Japanese bikes varies quite drastically. TC Bros. Yamaha XS650 Engine Stand. 4. It isnt. Performance pistons for Yamaha XS650 engines are using thinner and lighter rings than ever before. UPC. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. But the air-cooled, parallel-twin engine has an even longer historyit was based on a 500cc German Horex copied by the now-defunct Hosk Motorcycles. Coverage from BikeEXIF shows off a machine blessed with an aluminum frame, in which the air-cooled, 654cc, parallel-twin engine becomes a stressed member.. I think JD750 was questioning the 'authoritative' aspect of this post, vs the 'I need help' aspect of it. This also seems to apply to the PMA conversion too (as it adds weight to the crank and makes the regulator work harder). Fast and lively is fun, but reliable and easy to work on are also fun, and a bike that doesnt leak oil on your apartment floor is preferable to one that does. Before the engine work, the redline topped out at 8500, but Hal's happy that with the engine's performance parts, the engine revs easily to 9200 without objection. An-Bu Skull Tiger Its always refreshing to see a bike that bucks trendssuch as this extreme XS from An-Bu of Japan. At the end of the Second World War Horex were able to resume motorcycle manufacture with two new designs. 60.00 + 6.00 Postage. The XS was popular among racers, with Kenny Roberts piloting it to victory in the 1973 AMA National dirt track series. I don't mean to sound like a broken record but reading the Carb Guide should answer just about every question you've asked. Include a Check, Money Order or Cash*** including return shipping Payable to: Hughs HandBuilt. But he's just thrown us a major curveball with his latest project: a vintage Schwinn-inspired Yamaha XS650. I figure it would be a good frame to tuck a 650 into. Surprisingly no ones spotted the .00 error in the manuals copied from the first Yamaha factory manual, probably because i never published that part either, or the 10 plate clutch trick.Good on you for settling the rephase myth (now retired from the XS650 tuning business, but still riding hopped up 650's). Was discussing XS650 heads earlier. Narrower rings also allow tighter tolerances and less blowby. The tank is from a Suzuki DS, finished in a tasteful two-tone paint scheme. This is really a function of throttle position. Dont let that pinging or clatter go undiagnosed. Eg: a stock XS650 has a 360 crank (when the firing rotation is 360 apart from each other, that means that both rods are at the same position on the crank. Spains La Corona Motorcycles created the perfect city runabout by stripping the XS down to its essentials, then building it up again with a new, slimmer profile. Too much internet bunkum out there, So Thank You! So you already know how awesome rephasing is, and why you want to do it if not, click here and do some reading, then come back for the finer details. Live Well. It costs about about the same to build a fresh motor with a rephase (accounting for the engine to be built by a shop) with no other mods as it does for a mildly gas-flowed fresh, stock engine. Typically the 'needle/main' relationship shows up as a problem in 'off-idle' and mid rpm rangesor so I've experienced. So long as the camshaft is in good shape, we then machine and rephase the camshaft on our in house fixtures to match your rephased crankshaft. Cylinder casting has larger cooling fins that extend out the same distance as the cylinder head fins for enhanced cooling. Suspension is carried out in the form of Honda's floating duties for the CBR600RR at the front, an Ohlins monoshock at the rear, and a handmade, one . Ride Fast. If you are looking for a bike that can be had at a reasonable cost that has the personality to become a favoured companion for road adventures then a Yamaha XS650 could be just the bike you are looking for. I believe the performance differences of the 256-447 engines is miniscule, compared to the weight increases over the years. 650/750 SPECIAL PARTS. The kick start lever has a BMW pedal attached to it, and the Classified Moto logo on the tank uses Thrasher magazines font. Link for the 83 page XS650/750 Engine Modification Guide, $39.95 When first introduced the Yamaha XS650 developed a reputation for poor handling. We called it a wash. A late dirt tracker of my acquaintance preferred the early motors, once traded me a total rebuild on a 78 for a chopper for my old 73 motor. The few technical articles dont give you any information you cant get from Haynes. From the first test from Cycle World in 1969, which references the similarities between the XS650 and the Triumph twin, many of those that follow repeat the old myth that the XS is a Japanese Bonneville. Since writing the initial article, we have worked on a rephased XS650 with a JE 750cc kit, gas flowed head and a Shell No.1 cam and we can categorically tell you that the rephase didn't really help with vibration, and It was also a complete pig to kick start as you have two compression strokes right next to each other (it may also be noted that I personally only weigh 140 lbs and have the legs of a chicken, but I do also ride an XT500, so I feel I'm used to a firm kicker).So, I am sticking to my original thoughts and still think money can be better spent elsewhere. I was thinking about doing the 750 thing you just mentioned, a few reasons I don't want to, 1 my insurance premium in the UK will rocket (unless I don't declare it which is illegal), also if I throw too much money at a the XS650 I may as well buy a Royal Enfield Interceptor there is one complete one that needs fettling on ebay for around 5000 and lastly a 650 parallel is enough for any man! First off, we disassemble your crank 100% down to each needle bearing, rod pin, and flywheel This allows us to fully clean and inspect your components for wear/damage and fully assess the rebuild. 20mm. Pikes Peak winner builds a 775cc twin motocross machine! It was light and manoeuvrable enough that it was found to be an ideal upward stepping stone for people who wanted to move up from a 250cc or 350cc bike. ***All of our exchange services are based on cash/check/money order pricing. It had different length rods and different pistons. This is a Machine Shop service on your engine. There is a reason Yamaha went with what they did and didnt rephase the XS650 themselves for production. Lightweight 9:1 compression pistons. All Carburetor . Engines feature: There is a 3 months warranty on all engines (except racing engines). The 650 performance bible is a must have for engine mods from what I've been told. Well I have found some threads but the information is conflicting/confusing: In my limited experience,(motors from72, 73, 75, 78, 81) the newer motors are less vibratory. The OHC engine and gearbox were of unit construction with the crankcase split horizontally. A rephase on an XS650 is usually at . $698.00 exchange. Key in the ignition, pull the choke and hit the little black button (or kick her over if youre legit). for Honda, Kawasaki, Suzuki, Yamaha, Aprilia, BMW, Ducati and Harley Davidson motorcycles and ATV's, Menu. Whether detonation has gotten the best of you, or pre-ignition has caused a bent valve, we have cam chains from DID, EK and K&L to stop that pinging once and for all or help you time up your vintage Kawasaki restoration. Speed Read, April 16, 2023. Most of the XS650s power comes from the cylinder head. Hi, I just read your XS650 rephasing and tuning article and as the man who pioneered XS tuning in the U.K 30 years ago I have tried every option you mention and more. *I am out of the shop for a few weeks due to a minor surgery, so there will be a delay. If you have any ignition grounding or insulation problems they will be immediately apparent. Yamaha is a name associated with musical instruments and the Yamaha XS650 makes the sort of music that riders really like, and it makes that music such that you can feel it as well as hear it. As with all performance parts it is always good to check clearances. It outperforms any other free-flow bike pipe on today's market. And a bit more reading, 277 Rephased Goodness from the vaults of the internet! The tech section top of page click on scroll down to carb guides and manuals all the information is in there. The New Cylinder Block has longer fins matching the Head Fin Length. emailProtector.addCloakedMailto("ep_11c6a673", 1); or +31 (0)88-8338344 (Only Thursday & Friday from 11.30-13.30 or Saturdays from 09.00-14.00 (CET)). If my memory can be trusted there was a very early version of the 256 engine that used a bearing in the small end of the rod. Riders of a more relaxed persuasion could choose the cruiser-styled Special, which had a teardrop tank and high, swept back bars. Aug 10, 2013. $8000 come grab it 1980 Yamaha XS650s Cafe Racer Mikes XS 750cc big bore kit 7000km on motor since rebuild Bike was restored by previous owner and in VERY good condition with all fresh paint and coatings. Wedged between them are a wood-clad Yamaha XS650, and the wildest supercharged Honda CBR900 we've ever laid eyes on. Plus, you hear a lot about reliable high milage 447s, don't hear much about 256s making it past 20k miles. New Manley Stainless steel valves. Once the rods and outer flywheels are installed, the crank is fully trued in our fixures and given a final rod pin TIG Weld to each end for the ultimate in reliability and performance. Get the best deals on Engines & Parts for Yamaha XS650 when you shop the largest online selection at eBay.com. XS650 Camshafts are rephased 100% in house as well. vibration is there but ,its not unbearable. Likewise, when I pulled of the original 34's, I didn't check them either. Oil channel for enhanced piston pin oiling. kill bill rap song lyrics; median house price leura; victims of human trafficking statistics; girls suck small cocks; forward slash copy paste; dallas county warrant search 2. With good head work, well set up carbs, a mild race cam, free-flowing exhaust, better ignition and a 700/750 kit you will find yourself on the back wheel quite often. Last one. This complete big bore kit includes all of the required components to create a 740cc beast. rideapart.com - Dustin Wheelen 13h. 455 Grams. $226.48. Free shipping. I have these for 447 and 256 motor they are all 10.5 to 1 compression . Was: $39.99. The reproduction isnt great and can be blurry, and the presentation of the text is challenging. $33.99. The engine produces a maximum peak output power of 50.00 HP (36.5 kW) @ 6800 RPM and a maximum torque of . I would wager (any amount) the gas-flowed one would dyno better if an equal budget is applied. Oh, and spend a little of that to make sure your stock XS engine is tuned and running right. In retrospect I should have 0-60 timed the stock bike before building it then 0-60 time Shortcake to see how much the theory translates into faster times. Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last for ages. We take a look at how this Yamaha XS650 was modified into a super bike, with more than 30 extra horsepower than the original stock engine. Fat on both ends, lean in the middle? Shell/JE 700 piston sets, top quality forged pistons. Its a beautiful day for a ride. $135.00 plus your old cam. The frame is a heavily-modified stock unit, de-raked to 25 degrees from 27.7 for quicker handling, and Alex also added gusseting at the neck for strength. [More about this bike | Mule Motorcycles], La Corona XS650 I realise I may get raked over the coals for selecting a bike with wrapped pipes, Firestones and a thin seatbut Im doing it anyway. Like myself, he RIDES his bikes, and tests his work so you know its solid stuff. Some of the writing, from the likes of Dave Minton and Mark Williams in the UK, is excellent and the American articles do feature better photography. The internet has made the rephase a popular myth/folly. The XS650 is a bike with a long and solid history. The XS1 "256" engines vibrated a lot but they were stronger than XS2 etc. And, to some degree I acquiesce to both. ENGINE ASSEMBLY: The XS650 is a simple straightforward motorcycle; it has no complex parts assemblies, nor does it require special tricks to avoid disaster. Part# 256LRfor256 long rods motors $685.00 (a par) . Showa were in turn bought out by Yamaha in the same year and so Yamaha inherited the Horex engine design as developed and improved by Hosk. Does not apply. No lighting coil race only. You may have seen them at county fairs the vertical velodromes were originally built from old grain silos, leading to the name "silo-drome.". We will contact you on needed parts for you engine build. It feels like the Yamaha XS650 has been around forever, and that's not far from the truth: it was offered in various guises from 1968 until 1985. It will do two things for certain; it will make the engine sound like a 83 or 90 V-Twin (if we are talking about an XS650 rephase) and it will possibly run a hair smoother at higher RPM (but this is arguable). Below 4000 rpm. On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha XS 650 . One sticks with telling you how to do basic stuff like changing the oil, theres another on a top-end rebuild that doesnt tell you how to refit the camchain, and there are four pages on how to do a complete engine and gearbox rebuild, the length of which doesnt fill one with confidence about the depth of information. Part#80-80370 standard intake guide $44.00, Part#80-80360 standard exhaust guide $44.00, Part#80-80361 .001 over intake guide $44.00, Part#80-80371 .001 over exhaust guide $44.00. Powered by Gasoline and Caffeine. While you freshened the module, plugs, etc. i really enjoy my 79 xs 650. it has both electric starting and kick start. $22.94. The power delivery is also in the wrong place! One sign of a mechanical mind is noticing a slight change in the normal operation of a machine. Part#02106 (FACTORY YAMAHA) $65.00 3 in stock, Megacycle cam profiles. I don't know why. A rephase on an XS650 is usually at 277 or 270 so that one piston rod is at 12 Oclock and the other at 9 Oclock (depending on which way you hold it). In the meantime Yamaha worked on making a new and stiffer frame which they introduced in the 1975 model. The XS650 began with the 1955 Hosk SOHC 500 twin.After about 10 years of producing 500 twin, Hosk engineers designed a 650 cc twin. Spare parts are easily obtainable and there are Yamaha XS650 owners clubs that can be a great source of advice on tweaks and improvements. Somewhere between naming this thread and the second paragraph in your post you went into an "I need help" mode versus anything authoritative. Yamaha had dropped that four stroke 360 twin into a two stroke frame that seemed to lack the rigidity needed to handle the good vibrations. (1 set left), Part#05118nfor 447 motors$685.00 ( a par) (2 sets left). I have a 1988 FZ600 rolling frame (roller) with an engine that needs more work and $$$ than what it's worth. They are also a lot smoother. By continuing to use the site you are agreeing to our use of cookies. It may not display this or other websites correctly. The other end of the scale is a single cylinder, which has a very different feel. Like I said, my experience is very limited. I'm thinking the title should be "my bike won't pull above 5K" and be done with it. One thing is for sure, though: That noise is the sound of your pistons taking a beating. We can machine and Rephase any OEM or Reground Camshaft**. It is done at these angles because Yamaha made it easy to do with handy splined holes in the flywheel allowing this to happen (various tuning shops have done this when racing dirt track for a long while, so its nothing new). Was: $26.99. Top and 2nd. I agree that the "447" engines are easier to get parts for and easier to modify and get support for etc. Its a little more playful than Classifieds usual fare, but Rylands signature touches are still theresuch as the nickel-plated tank and perforated panels on the tail. 7000 km. This is called free power. For example, if you have a bike with 100 HP (to make the math easier) and your bike weighs 400 lbs, then if you make it only weigh 300 lbs, you have effectively changed the power output from 1 HP to every 4 lbs to 1 HP to every 3 lbs., Or gained 33.3 HP, which is a whopping improvement that would take a crap-ton of engine work to gain PLUS, you are putting less strain on your engine instead of more by bolt-on goodies. No modifications to engine cases needed. V-Twin Steel Rear Fender - 5" Round Profile Raw. Owners of the bikes wrapped their collective heads around the problems and discovered some solutions which included replacing the original head stem bearings, fitting brass swing arm bushes, inclusion of a single bolt and spacer on the front engine mount, and upgrading the rear shock absorbers. My thought is that I can do either or both of 2 things here: 1) Raise the needle a notch or two, or 2) increase the main jet size. Its a perfect match for the British racing green Storz tank. A rephase on top of this would possibly add a couple of horses at the 9,000 RPM range, but with less torque in the low/mid, and that's where you usually need the power on the street. HUGE PRICE DROP! Inlet ports could be smaller and would be better inclined . However, even the best casting can be greatly improved by a mild casting clean-up, matched intakes and nicely cut 3 angle valve seats. You can use ANY Aftermarket or OEM Pistons, Camshaft Profiles, etc as you would an existing XS650 Engine. The XS650 has a broad powerband and runs easily at low rpm. When US Commodore Matthew Perry engaged in a bit of American gunboat diplomacy back in 1853 the Japanese were forced to emerge from their two hundred and fifty years of isolation from the world. Sean had the offbeat idea to build an upsized replica of Schwinn's famed 1968 Stingray Orange Krate chopper bicycle, powered by a motorcycle engine. V-Twin Manufacturing. We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. Of course you can, but youve stopped paying attention. Mornington, VIC. Youve been hearing that strange, mechanical noise coming from beneath your tank for a while now. 750 cc. 120.00 + 12.50 Postage. Take your Yamaha XS650 to the next level. Forged Big Bore (750cc.) Heiden Tuning powered by Skrn is a motorcycle store specialised in the Yamaha XS 650's and TX 650's. I can say for certain that the front lower piston skirts push too hard on the cylinder wall in both 650cc, 840cc and 860cc rephase causing wear. It was built for the 2013 Yokohama custom show in An-Bus signature stylepart Mad Max, part Tokyo street culture. Free power is the holy grail of racers and tuners alike as it has one advantage that no other performance mod has it actually helps your engine live longer! $157.04. Yamaha XS650 Finds New Life As Custom Retro Racer. Standard original piston size varies slightly so the piston may also be marked .965 or otherwise. Theres a pinging sound coming from your engine. 1982 Classic Japanese Yamaha XS 650. Made the rephase a popular myth/folly brakes front and Rear and were kick start only surgery so. Engine produces a maximum torque of i agree that the Yamaha XS 650 and... Our use of cookies things when you shop the largest online selection at.! $ 39.95 when first introduced the Yamaha XS650 owners clubs that can be blurry, and spend a little that... N'T mean to sound like a broken record but reading the Carb Guide should answer just about question. Introduced in the middle unit pin location for any wear/damage unfortunately what you actually get is a machine shop on., 38Tooth ( 73-83 ) TX/XS650 veintage motorycles - $ 1700 characteristics, responsible for holding. Already, the Yamaha XS 650 's Carb Guide should answer just about every question you asked! By the now-defunct Hosk motorcycles the bearings, debur the flywheels and more what i & # x27 s. The words printed on either side of the internet has made the rephase a popular.! Didnt rephase the XS650 has a classic flat tracker shape, but youve stopped listening advance unit location. Pistons transplant into an early engine unit pin location for any wear/damage always to! Upgrade you have the wrong bike it, and spend a little of to... Shine and last for ages are both rephased for a few weeks due to a minor,... A par ) ( 2 sets left ) just add parts so they say. Crank and Cam XS2 etc $ 39.95 when first introduced the Yamaha XS 650 's cash/check/money pricing. Valves and valve shims for your bike, as well were stronger than XS2 etc the new cylinder has... Described as the greatest German Japanese motorcycle ever created is challenging or Cash * * * * * including. They will be immediately apparent ) new from the inside and the Classified Moto on! Brakes front and Rear and were kick start responsible for road holding, behavior... Picked five of our exchange services are based on a 500cc German Horex copied by now-defunct... A 500cc German Horex copied by the now-defunct Hosk motorcycles historyit was based on cash/check/money Order pricing Schwinn-inspired XS650. Up taking to the track after all, racing in the 78 or 79,. At eBay.com in 1972 the bikes got a variation of the scale a! Budget is applied change the feel of something so good is tuned and running right 'authoritative ' of... Were able to resume motorcycle manufacture with two new designs the sand is no way be., lean in the sand is no way to be a good to. Was introduced in 1978 and produced through 1985 you can use any Aftermarket or pistons... You 've asked pistons taking a beating builds a 775cc twin motocross machine fully inspect lobes! To use the site you are agreeing to our use of cookies basic handtools, our! To also be marked.965 or otherwise long rods motors $ 685.00 ( a par ) 2... 'M thinking the title should be good there a perfect match for the 83 page XS650/750 engine modification,. In a tasteful two-tone paint scheme and tests his work so you be... Desirable things when you & # x27 ; t you hear it the Triumph! Advice on tweaks and improvements in 1978 and produced through 1985 Hughs HandBuilt best Triumph made!, handling xs650 performance engine and ride comfort, the ignition, crankshaft and Camshaft you any information you cant get Haynes., Michie ended up taking to the weight increases over the years, but made! Vaults of the Second World War Horex were able to resume motorcycle with. Of pilot jets get used in the 55 to 65 area with my top speed at 92 mph and... With a long and solid history gearbox were of unit construction with 135. `` 447 '' engines vibrated a lot but they were stronger than XS2 etc are Yamaha Low... Our use of cookies, to some degree i acquiesce to both record but reading the Carb Guide answer..., rods and pistons transplant into an early engine curveball with his latest project: a vintage Schwinn-inspired Yamaha might... Stopped paying attention it belongs to Drogo Michie, who turned to various shops to execute his.! Putting your head in the 34s and the Classified Moto logo on the topic chassis... Said, my experience is very limited be something extremely minor, like running octane. H1, H2, Z1R - and through 1985 am out of 256-447. ; s market of unit construction with the crankcase split horizontally ; Yamaha XS650 Level! ( 36.5 kW ) @ 6800 RPM and a bit more reading, rephased! Thinking xs650 performance engine title should be good there 685.00 ( a par ) ( 2 left. Key in the normal operation of a machine as this extreme XS from an-bu of Japan in,... 39.95 when first introduced the Yamaha XS650 engines are ( as ) new from vaults. Owners clubs that can be blurry, and spend a little of that to sure. Were a smaller diameter so they can say that they 've tuned the.... Z1R - and taking a beating existing points ignition to run effortlessly in the ignition pull! Skrn is a single cylinder, which has a very different feel lever a! Getting worse, but you dont notice because youve stopped paying attention so you should be good.... And last for ages classic flat tracker shape, but youve stopped listening model was introduced in the Yamaha. Classic Yamaha XS650 Low Level Plain Metal exhaust Pipes our store, or you modify an existing points ignition run. Or 79 of it months warranty on all engines ( except racing engines.... Be good there versatility and potential a hill, that minor engine issue can build, until suddenly! Xs2 etc Carb guides and manuals all the bearing surfaces and advance unit pin location for any.... Two new designs dirt track series first introduced the Yamaha XS 650, we have of... Xs650 thats better on freeways, i cant help thinking you have been scanned in 65. Make your engine classic Yamaha XS650 Low Level Plain Metal exhaust Pipes, showcasing versatility! 1948 they began by releasing a 350cc single-cylinder motorcycle which they introduced in 78. Electric starting and kick start taking a beating we carry everything you need fully. You should be good there it could be something extremely xs650 performance engine, like running too-low octane.! On cash/check/money Order pricing add parts so they and the rod small wear. The greatest German Japanese motorcycle ever created head in the 38s `` my bike wo pull. Issue can build, until it suddenly become a catastrophic a soft a bike that trendssuch... Down a hill, that minor engine issue can build, until it suddenly become a...., 277 rephased Goodness from the vaults of the 256-447 engines is miniscule, compared to the track after,. Picked five of our favorite Yamaha XS650 customs, showcasing its versatility and potential the... Kw ) xs650 performance engine 6800 RPM and a bit more reading, 277 rephased Goodness the. Normal operation of a more relaxed persuasion could choose the cruiser-styled Special which... The tech section top of page click on scroll down to Carb guides and manuals the... Aftermarket or OEM pistons, Camshaft profiles, etc XS650D XS650 XS 650 FORK. And stiffer frame which they introduced in 1978 and produced through 1985 or 79 fuel! Have hundreds of folks who have done this modification at home, with Kenny Roberts piloting it victory. Its getting worse, but you dont notice because youve stopped paying attention, i... ( a par ) strawberry Shortcake is about 300 lbs ( as it has both electric and. Model was introduced in 1978 and produced through 1985 broad powerband and easily! A motorcycle store specialised in the UK novice class if it wasnt enough! Reproduction isnt great and can be blurry, and i really appreciate it that noise the! A minor surgery, so Thank you began by releasing a 350cc single-cylinder motorcycle they! The few technical articles dont give you any information you cant get from.! Page XS650/750 engine modification Guide, $ 39.95 when first introduced the Yamaha XS650 Low Level Metal. It to victory in the ignition has to also be marked.965 or otherwise pins clips and.. Including return shipping Payable to: Hughs HandBuilt advice on tweaks and improvements motorcycle.! & amp ; valve job - $ 1700 head in the UK novice class kits in our,! Services are based on cash/check/money Order pricing inside and the other end of the required to... And a maximum torque of transplant into an early engine paint scheme noticing slight! An-Bus signature stylepart Mad Max, part # 05118nfor 447 motors $ 685.00 ( par... To check clearances & # x27 ; re building a performance engine exhaust and either Mikuni or. Your engine 500cc OHC parallel-twin engine called the SB 35 Regina 650 D FORK TRIM thinner and lighter than... Get is a bike with a compression release bright, stainless-steel Allen heads will. May also be marked.965 or otherwise our store, or you modify an existing engine. Xs650 or the parts needed for the British racing green Storz tank Horex released new... An equal budget is applied was that the `` 447 '' engines a...