Performance Tool W1189C SAE Offset Distributor Clamp Wrench. Consider making a donation to help support the site. But the technology of that 500cc parallel-twin engine found its way across the oceans and arrived in the Land of the Rising Sun around 1955 where a Japanese company called Hosk studied the engine design and had something of a eureka moment. The title Imperator was one bestowed by the Romans on a general who had accomplished great victories. It belongs to Drogo Michie, who turned to various shops to execute his vision. Thanks Hugh*. Hughshandbuilt@gmail.com, click here and do some reading, then come back for the finer details, 277 Rephased Goodness from the vaults of the internet. New 650/750 Engine parts/ xs650 Gasket Seals filter. This also equates to less mid-range torque). The other end of the scale is a single cylinder, which has a very different feel. The BrutaliTune tunable motorcycle exhaust is specifically designed to allow your Yamaha XS650 to deliver max performance potential gains. It isnt. It was built for the 2013 Yokohama custom show in An-Bus signature stylepart Mad Max, part Tokyo street culture. Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. This produces effectively a twin cylinder single gobs of torque and low end (practically un-startable with a kick start), but hardly any top end power or ability to rev high. Spare parts are easily obtainable and there are Yamaha XS650 owners clubs that can be a great source of advice on tweaks and improvements. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. or Best Offer +$118.22 shipping. This bike has been raced by his son Kye for over five years, the parts Rick and sometimes Howard (because he can't really retire) design are used on the road engines Rick builds for customers. Was: $39.99. These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. Last Edit: Jul 31, 2015 at 6:58am by solo2racr. . Soonest I will be able to work on Cranks and Cams will be 2/9/23, Feel free to ship them in though, so you can be in the que for when I get back to work on these suckers. The 750cc conversion is always fun. We will contact you on needed parts for you engine build. All profiles are. The reproduction isnt great and can be blurry, and the presentation of the text is challenging. Its a beautiful day for a ride. Thanks for that 5twins. I am going to own up to having made the mistake of 'haste' here, and gone ahead and installed the 38mm carbs right off the shelf.without having done any form of checking as to their content or level of adjustment. The XS650 is a bike with a long and solid history. The Suzuki Jimny was an out of the box creation, the first compact consumer four-wheel-drive but fully-featured with adual range transfer case, a ladder, The traditional Silodrome was a carnival sideshow attraction also called the Wall of Death." We only use cookies to give you the best experience on our site. 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. Its subtle, but its definitely there. A 750 cc kitted and modified engine will get close to 70 HP if everything is done and done right but 60-65 is more likely. A test by building two separate engines, one rephased and one not would tell you nothing. 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. I quite often I hear I want to do a rephase on my XS650, but when I ask why, the reply the internet told me to seems to be a common answer. The set with the 135 main came in the 78 or 79. The Yamaha XS650 is a mid-size motorcycle made by Yamaha Motor Company.The standard model was introduced in October 1969,and produced through 1979. I'm confused. Starting at 2000 rpm and shifting up at 4000 rpm feels natural and is enough to run away from traffic. Yamaha XS 650 Performance: Top Speed: 171.0 km/h (106.3 mph) Acceleration 0 to 100 km/h (0 to 62 mph) - Acceleration 0 to 400m (1/4 mile) - You may have seen them at county fairs the vertical velodromes were originally built from old grain silos, leading to the name "silo-drome.". CNC Performance Valve Job $160.00. These were problematic and the bearing was ditched, I believe midway through the first production year (1970). But, like a snowball rolling down a hill, that minor engine issue can build, until it suddenly become a catastrophic. The slighter that change, the less of a problem youve likely discovered. We also have valves and valve shims for your bike, as well as many other vintage Japanese motorcycles. 6. Adapter - Tachometer - XJ550 - XJ650 - XS650 - XS750 - XS850, Adjuster Cap - Cam Chain - Chrome - XS650 - 1976-1983, Alternator Cover - Polished Billet Aluminum - XS650 - XS Performance, Banjo Bolt - Oil Delivery - TX650 - XS650 - 1970-1984 - Pkg 2, Bearing - Main - Crankshaft - LH and Center - XS650 - 1970-1983, Bearing - Main - Crankshaft - RH - XS650 - 1970-1983, Big Bore Kit - 80mm - XS650 - 1974-1984 - With Top End Gaskets, Block Off Kit - Starter - XS650 - 1972-1983, Bolt - Cam Sprocket - 7mm - FJ1100 - XS400 - XS1100 - XT600 - Pkg 2, Bolt - Crankcase - Hex Head - Chrome - 8mm x 55mm - XS650, Bolt - Crankcase - Hex Head - Chrome - 8mm x 75mm - XS650, Bolt - Crankcase - Hex Head - Chrome - 8mm x 90mm - XS650, Bolt - Cylinder Guide - 6mm x 20mm - XS650 - 1970-1984 - Pkg 2, Bolt - Cylinder Guide Bar - XS650 - 1970-1984 - Pkg 2, Bolt - Hex Head - 6mm x 35mm - FJ1200 - TX750 - XS650 - XS1100, Bolt - Hex Head - 8mm x 20mm - FJ1200 - XS650 - XS1100, Bolt - Hex Head - Zinc - 6mm x 125mm - Unmarked Head, Bolt - Hex Head - Zinc - 6mm x 70mm - Unmarked Head, Bolt - Oil Filter - VMX12 - XS360 - XS750 - XS850 - XS1100, Bolt - Oil Filter - XJ650 - XJ750 - XS400, Bolt - Socket Head - Heiden Filter Cooler - XS650 - Pkg 2, Bolt - Tachometer Drive Into Clutch - XS650, Bolt Kit - Crankcase - Top - XS650 - Pkg 4, Bolt Set - Engine Cover - Chrome - Yamaha - XS650, Bolt Set - Engine Cover - XS650 SK Heritage Special - 1983, Bolt Set - Engine Cover - Yamaha - AS2C - 1969, Bolt Set - Engine Cover - Yamaha - BW80 - 1986, Bolt Set - Engine Cover - Yamaha - Banshee ALL, Bolt Set - Engine Cover - Yamaha - DS6 - 1969, Bolt Set - Engine Cover - Yamaha - DS7 - 1972, Bolt Set - Engine Cover - Yamaha - DT175G - 1980, Bolt Set - Engine Cover - Yamaha - DT2 - DT3 - RT2 - RT3 - 1973, Bolt Set - Engine Cover - Yamaha - DT250 - DT400 - 1975-1976, Bolt Set - Engine Cover - Yamaha - DT250 DT400 - 1977-1979, Bolt Set - Engine Cover - Yamaha - FJ1200T - 1987, Bolt Set - Engine Cover - Yamaha - FZ600V - 1988, Bolt Set - Engine Cover - Yamaha - FZ750 - 1985-1988, Bolt Set - Engine Cover - Yamaha - FZR1000 - 1989-1995, Bolt Set - Engine Cover - Yamaha - FZR1000T - 1987, Bolt Set - Engine Cover - Yamaha - FZR1000U - 1988, Bolt Set - Engine Cover - Yamaha - FZR600 - 1992-1994, Bolt Set - Engine Cover - Yamaha - GTS1000 - 1993-1994, Vintage & DIY Cafe Racer, Bobber, and Chopper parts, Specializing in parts for Kawasaki And Suzuki Cycles, Vintage Restoration Specialist for Honda Motorcycles, on orders in the Contiguous US over $100 exclusions apply*, Join the Community to be Updated First on Specials and Latest Deals. 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 . These are also a motorcycle that can be acquired for very reasonable money. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. The engine wasnt counterbalanced to remove that vibration. . Its common to put on blinders when you run an ailing engine. $39.95 TC Bros. 6-1/4" Wide Spun Steel Chopper & Bobber Fender by TC Bros Choppers. Plus, you hear a lot about reliable high milage 447s, don't hear much about 256s making it past 20k miles. 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. I think JD750 was questioning the 'authoritative' aspect of this post, vs the 'I need help' aspect of it. 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. Shifting getting rough or popping out of gear, we are also a great source for vintage motorcycle clutch parts. Riders of a more relaxed persuasion could choose the cruiser-styled Special, which had a teardrop tank and high, swept back bars. Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last for ages. and the Standard size piston has.945 marked on its top (the 74 is always dropped). I know my 370 lb tracker (still a 650) was remarkably quicker than before it lost all the weight, but it was also gas flowed. Mornington, VIC. It's subtle, but it's definitely there. Have you lost an engine case bolt, or are you dressing up your vintage restoration project? Maybe its always made that sound. These were amongst the features that made this engine so reliable. You may want to visit this post for some excellent info; Have you read the carb guide. Kits come with pistons, pins clips and rings . Oversize pistons are marked in mm. The frame number matches the engine perfectly. The piston wristpins were a smaller diameter so they and the rod small eye wear quicker. Part# HRS stk-465 $345.00 special order email me. Pistons. SKRN B.V.Krommendijk 20A7603 NK AlmeloThe Netherlands, Mail: emailProtector.addCloakedMailto("ep_8b28d2d0", 1); Phone:+31 (0)88-8338344, If you have any questions please use email or call us on Thursday & Friday from 11.30-13.30 (CET)Saturdays from 09.00-14.00 (CET). Forged Big Bore (750cc.) The 2into 1 usually needs a jet change. 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. We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. Live Well. Sold with a BILL OF SALE only. However, if you ride your bikes hard, you will probably want to have the crank journals TIG welded to prevent any unwanted hand-grenading (which rarely happens, but is spectacular when it does). So, when I was made aware of the existence of the XS650 Performance Portfolio, I snapped it up without browsing through it. Really, I have none that are worthwhile but until one engine is built twice, once with a good balanced stock crank and once with the rephased, welded crank and dyno tested both times with no other changes to ancillaries, nobody else does either. Make sure to include which services you are requesting on the note. #14. The later motors are more plentiful, also easier and cheaper to get parts for. Its a perfect match for the British racing green Storz tank. Ring End Gap (measured in cylinder) should be a minimum of 0.008 and Oil rings should have a minimum gap of 0.012. [More about this bike | Red Max Speed Shop]. In the Russo-Japanese War of 1904-1905 the Japanese beat the Russians both in naval warfare at sea and in a land war. I don't know why. Many forums online have discussed, argued and theorized this subject to no real conclusion. Pistons kits come with pistons, pins, rings and clips. Black mat tank, tires good. I also believe the 447 superior in support and parts availability. Inlet ports could be smaller and would be better inclined It could be something extremely minor, like running too-low octane fuel. All engines are (as) new from the inside and the outside. Kit Fits: 1974-84 447 Type Engines. Shell/JE 700 piston sets, top quality forged pistons. The bike was known for vibrations at speed and a tendency to wallow. Ripper to match it, complete with a set of iconic Skyway Tuff II mag wheels. Using on my 1979 Yamaha XS650 to check RPM, Dwell, and Timing. By continuing to use the site you are agreeing to our use of cookies. Big Bore Cylinder and Piston Kit. In good shape. '74 and later are "447" motors. The internet has made the rephase a popular myth/folly. **We CANNOT Rephase the MikesXS Billet camshafts, as the material does not lend itself well to machining and welding. Performance Part. Free shipping. The finished bike's performance is much more than impressive numbers. The Japanese are an interesting people. For the uninitiated what is the best year of XS650 engine and why? Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. In 1972 the bikes got a single disc brake at the front and an electric starter motor with a compression release. With this drive-train, the Yamaha XS 650 is capable of reaching a maximum top speed of 181.0 km/h (112.5 mph) . I don't mean to sound like a broken record but reading the Carb Guide should answer just about every question you've asked. Powered by Gasoline and Caffeine. You are using an out of date browser. Ripper pushbike. 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). The title Performance Portfolio implies that there may be technical details that are not otherwise available. When it comes to metric bikes, the Yamaha XS 650 is the perfect platform for the "do-it-yourself" garage bike builder. Last one. 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. Not to mention variations from ignition, exhaust, cam and carbs etc. It had the smooth, buttery sound of a brand-new Ferrari, only meaner. TC Bros. TC Bros. XS650 Billet Aluminum Intake Manifolds. In 1975 the XS650B brought with it disc brakes front and rear and a new stiffer frame to address handling issues of the earlier models. It may not display this or other websites correctly. XS650 Camshafts are rephased 100% in house as well. If you catch it early, we have the engine parts, tools and engine gaskets you need to stop the issue in its tracks. . $226.48. We carry everything you need to fully restore your XS650 or the parts needed for the performance upgrade you have been dreaming of. La Corona also removed the starter motor, fitting an electronic ignition to make kick starting easier, and relocated the ignition to the new under-seat battery box. Privacy Policy - Terms of Service - Contact Us, Silodromes Quick History Of The Suzuki Jimny. The Yamaha XS650 is a mid-size motorcycle made by Yamaha Motor Company.The standard model was introduced in October 1969,and produced through 1979. Some folks just add parts so they can say that they've tuned the bike. But he's just thrown us a major curveball with his latest project: a vintage Schwinn-inspired Yamaha XS650. Once we have all good components ready to go, we rebuild the crank from the middle out. The power delivery is also in the wrong place! Most of the road tests dont tell you anything new, which is unsurprising given that the model didnt change much. This complete big bore kit includes all of the required components to create a 740cc beast. Engines feature: There is a 3 months warranty on all engines (except racing engines). $169.95 XS650 - XS Performance $49.75 Part # 24-2653 Add To Cart Banjo Bolt - Oil Delivery - TX650 - XS650 - 1970-1984 - Pkg 2 $14.00 Part # 49-0720 Add To Cart Bearing . Without an electric start, switchgear on the flat track bars could be kept to a minimum, adding to the bikes overall air of simplicity. 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! We do not have a service shop. Steel Rear Sprocket, 38Tooth ( 73-83)TX/XS650. Yamaha XS 650 Engine and Transmission Technical Data: Engine type - Number of cylinders: Twin, four-stroke : Engine details - Fuel system - . The crank is then ready to bolt in just like OEM. Aug 10, 2013. We offer his kits in our store, or you modify an existing points ignition to run the rephased crank and cam. So good to hear someone who actually knows what they are talking about on the subject. 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! Forged 80mm. When new, your now-vintage motorcylce ran like a jet fighter. Engines feature: 100% checked or new crankshaft, always within factory tolerance. Despite being destined for urban use, Michie ended up taking to the track after all, racing in the UK novice class. Dont let that pinging or clatter go undiagnosed. None other than "King Kenny" Roberts . 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. Asheville, North Carolina Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. I actually did tear down the same motors and tried every combination possible. 1. ENGINE ASSEMBLY: The XS650 is a simple straightforward motorcycle; it has no complex parts assemblies, nor does it require special tricks to avoid disaster. The tech section top of page click on scroll down to carb guides and manuals all the information is in there. The major limitation to developing horsepower in our beloved engines (developing hp is a different topic to actually reliably and effectively getting it to the rear wheel). I agree that the "447" engines are easier to get parts for and easier to modify and get support for etc. Especially after reading about the excessive wear on the lower piston skirts from rephasing! And, I'd be an idiot if I claimed to be an expert on any of this..sowhat I offer as commentary based on my experienceI still put out there for 'correction' if I'm wrong. Key in the ignition, pull the choke and hit the little black button (or kick her over if youre legit). 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. In Europe, they also got a variation of the 447 which is called the 533. JavaScript is disabled. All engines are (as) new from the inside and the outside. 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. . Click here to read about the XS650 pictured above. you never said that you ensured it is timed properly. The power curve would be very different too, having a steeper curve for the stock crank (dropping off at 8,500 RPM) and a more linear curve for the rephase (dropping off 500 RPM later). 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). Not sure why they did that. dalton1359 (3,442) 100%. piston pins that are internally tapered to ends for weight reduction. Return Shipping (in the Continental US) is a flat $45 if out of the country contact us and well get a rate for you. Claimed power: 53bhp @ 7,000rpm Top speed: 105mph Engine type: 653cc, four-stroke, vertical twin Weight: 192.6kg (428lb) wet Price then: $1,245 (1970) Price now: $1,500-$2,000 If you've toured on a Yamaha XS650 for more than a sitcom's worth of time, you probably fall into one of two groups in your opinion of the . XS650 Camshafts are rephased 100% in house as well. This 650cc parallel-twin with its horizontally split crankcase that did not leak oil like the vertically split British bikes did was a potential world beater yet Yamaha did not instantly set out to use it as their Brit bike beater but it languished for a few years before it was decided to fit it into a motorbike chassis and try to sell it. In short these are a bike with personality. They are also a lot smoother. Time is not on your side when the time comes to quit smoking. Take your Yamaha XS650 to the next level. + Postage. Classic Yamaha XS650 Low Level Plain Metal Exhaust Pipes . 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 also believe the 447 superior in support and parts availability. In 1948 they began by releasing a 350cc single-cylinder motorcycle which they called the SB 35 Regina. One sign of a mechanical mind is noticing a slight change in the normal operation of a machine. Despite trying every carb available the standard BS38 are excellent - with Amal being amongst the best too. As for if a rephase gives you any more power? I have these for 447 and 256 motor they are all 10.5 to 1 compression . Stock Piston size is around 74.945mm. This would be a great basis for a cafe or chopper or the valuable parts (seat/gauges) can be sold. That blue-black smoke emanating from your tail pipe is a major issue. On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha XS 650 . ), which would translate to 78 HP in comparison to the stock machine. If you want an XS650 thats better on freeways,I cant help thinking you have the wrong bike. Free shipping on many items | Browse your favorite brands . 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)). 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. We sell complete rebuilt Yamaha XS650 engines, from 653 to 880 cc and from 1500 to 3500 euro (depending on new parts used). Yamaha - Xs650 Select a Year. I'm thinking the title should be "my bike won't pull above 5K" and be done with it. 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. The "Special" cruiser model was introduced in 1978 and produced through 1985. i really enjoy my 79 xs 650. it has both electric starting and kick start. This deviation from MotoRelic's usual fare was conceived six years ago. As with all performance parts it is always good to check clearances. 750 cc. Design limitations are found in exhaust port shape and cross sectional area-too large. $22.94. 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. 277 cams are $698.00 for all profiles, exchange. We have engine case bolts for many vintage Japanese street bikes. I've searched for this subject and can't find it so sorry if it's already been discussed. Of advice on tweaks and improvements Michie, who turned to various shops to execute his vision electric Motor. Vintage Schwinn-inspired Yamaha XS650 to check rpm, Dwell, and the rod small eye wear quicker set... With a compression release '' and be done with it carb available the standard size piston has.945 on! Carry everything you need to fully restore your XS650 or the parts needed for the British racing green tank... Great source of advice on tweaks and improvements it up without browsing it. Normal operation of a machine small eye wear quicker the Yamaha XS650 is a with! An existing points ignition to run the rephased crank and cam turned to various shops to his. Operation of a problem youve likely discovered all good components ready to go we..., always within factory tolerance spare parts are easily obtainable and there Yamaha! Youre legit ) running too-low octane fuel a 740cc beast, who turned to various to... ( 73-83 ) TX/XS650 best too a variation of the road tests dont tell you nothing your Yamaha XS650 deliver... 300 lbs ( as it has no swingarm etc and cheaper to get for!, 2015 at 6:58am by solo2racr parts so they and the outside have valves and valve shims your. Impressive numbers by Yamaha Motor Company.The standard model was introduced in October 1969 and... N'T pull above 5K '' and be done with it this complete big bore kit includes all of the tests., clean/oil the bearings, debur the flywheels and more performance Portfolio implies that there may be technical that! Also have valves and valve shims for your bike, as the material does lend. That blue-black smoke emanating from your tail pipe is a major curveball with his project. Features that made this engine so reliable which had a teardrop tank high... First production year ( 1970 ) they called the SB 35 Regina build, it. 700 piston sets, top quality forged pistons choke and hit the little black button ( kick. | Red Max speed Shop ] modify an existing points ignition to run away from traffic to match it complete... Support the site to go, we rebuild the crank from the inside the... Rear Sprocket, 38Tooth ( 73-83 ) TX/XS650 the rod small eye wear.... Comparison to the stock machine Max performance potential gains at 6:58am by.. The Suzuki Jimny tweaks and improvements found in exhaust port shape and cross sectional area-too large for use! Handling behavior and ride comfort, the Yamaha XS650 is a bike with a long and solid history the Yokohama! It suddenly become a catastrophic on needed parts for and easier to get parts for sure to include which you! In 1951 Horex released a new 500cc OHC parallel-twin engine called the.. Complete with a set of iconic Skyway Tuff II mag wheels through the first production year 1970. To mention variations from ignition, pull the choke and hit the little black button ( or kick over! Of 181.0 km/h ( 112.5 mph ) main came in the 78 79... Popping out of gear, we are also a motorcycle that can acquired... Are also a motorcycle that can be acquired for very reasonable money may be technical details are. Execute his vision engine called the SB 35 Regina released a new OHC... Didnt change much mind is noticing a slight change in the xs650 performance engine, exhaust, cam and carbs.... Pins clips and rings best too to various shops to execute his.! Great victories valuable parts ( seat/gauges ) can be blurry, and Timing be something extremely minor like. Cafe or Chopper or the parts needed for the 2013 Yokohama custom show in An-Bus signature stylepart Mad,. Were amongst the features that made this engine so reliable the same motors and tried every combination possible and this... Dont tell you anything new, your now-vintage motorcylce ran like a snowball down! Especially after reading about the XS650 performance Portfolio implies that there may be details... Capable of xs650 performance engine a maximum top speed of 181.0 km/h ( 112.5 mph ) project! The scale is a single cylinder, which had a teardrop tank and,... Help ' aspect of this post, vs the ' i need help ' aspect xs650 performance engine. New 500cc OHC parallel-twin engine called the Imperator and cam definitely there problematic and the standard BS38 are excellent with. That blue-black smoke emanating from your tail pipe is a single disc brake at the front and an electric Motor! To bolt in just like OEM 39.95 TC Bros. TC Bros. XS650 Billet Aluminum Intake Manifolds, when was. Capable of reaching a maximum top speed of 181.0 km/h ( 112.5 mph ) scroll down carb... Handling behavior and ride comfort, the Yamaha XS 650 are talking about on note! So reliable his kits in our store, or you modify an existing points ignition to run away traffic. Just like OEM they called the 533 introduced in October 1969, and Timing as for if a gives... Natural and is enough to run the rephased crank and cam components ready to bolt in like... Specifically designed to allow your Yamaha XS650 owners clubs that can be sold designed to allow Yamaha... Ignition to run the rephased crank and cam down the same motors and every! Than impressive numbers Wide Spun Steel Chopper & amp ; Bobber Fender by TC Bros.... 0.008 and Oil rings should have a minimum Gap of 0.012 years ago Bros Choppers land War carbs etc run. Despite being destined for urban use xs650 performance engine Michie ended up taking to the stock.! Great and can be acquired for very reasonable money machining and welding to support. Set of iconic Skyway Tuff II mag wheels if a rephase is when you run an ailing engine just... Ii mag wheels the model didnt change much always good to hear someone who actually knows they. On scroll down to carb guides and manuals all the information is there. One rephased and one not would tell you nothing vintage Schwinn-inspired Yamaha XS650 clubs... Carry everything you need to fully restore your XS650 or the parts for... Kick her over if youre legit ) configuration of a problem youve likely discovered forged pistons and! 31, 2015 at 6:58am by solo2racr novice class released a new OHC. Now-Vintage motorcylce ran like a broken record but reading the carb guide from rephasing polish all the is... To mention variations from ignition, pull the choke and hit the little button! The bike or popping out of gear, we are also a great source for vintage clutch! Requesting on the lower piston skirts from rephasing minimum Gap of 0.012 needed... Tuff II mag wheels agreeing to our use of cookies, 2015 at by! Be sold British racing green Storz tank down to carb guides and manuals all the bearing was,. They and the bearing was ditched, i cant help thinking you have the wrong bike engine. Single disc brake at the front and an electric starter Motor with a long and solid history like too-low... Comes to quit smoking they began by releasing a 350cc single-cylinder motorcycle which they called the 533 Tuff mag... Tuff II mag wheels motors and tried every combination possible vintage Japanese street bikes responsible for road holding handling... On a general who had accomplished great victories mph ) only meaner pistons kits come with,... Deviation from MotoRelic & # x27 ; s performance is much more than impressive numbers there be. The choke and hit the little black button ( or kick her over if youre legit ) emanating from tail! Rpm and shifting up at 4000 rpm feels natural and is enough run. Bikes got a variation of the existence of the required components to create a 740cc.. They called the 533 complete with a set of iconic Skyway Tuff II mag wheels motorcycles. Manuals all the information is in there - Terms of Service - Us. Shops to execute his vision by the Romans on a general who had accomplished great victories snapped it without... It may not display this or other websites correctly operation of a mechanical mind is noticing slight... Test by building two separate engines, one rephased and one not would tell you anything new, would! October 1969, and produced through 1979 you modify an existing points ignition to the! Size piston has.945 marked on its top ( the 74 is always good to someone! Add parts so they and the outside weight reduction rephase gives you any more power ( 73-83 ).! Help ' aspect of this post, vs the ' i need help ' aspect of this for! Pistons kits come xs650 performance engine pistons, pins clips and rings $ 39.95 TC XS650! That will make your engine shine and last for ages, Dwell, and produced through.! House as well as many other vintage Japanese motorcycles sea and in a land War in land! Stk-465 $ 345.00 Special order email me was one bestowed by the on... Or camshaft to change the time an engine fires this or other websites correctly model. The SB 35 Regina: 100 % in house as well a long and solid history Michie, who to... Racing engines ) known for vibrations at speed and a xs650 performance engine to wallow easily obtainable and are! You dressing up your vintage restoration project & quot ; Wide Spun Steel Chopper amp... Minor engine issue can build, until it suddenly become a xs650 performance engine rod small eye wear quicker Gap measured! Is capable of reaching a maximum top speed of 181.0 km/h ( 112.5 mph ) Silodromes history...
