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. The BrutaliTune tunable motorcycle exhaust is specifically designed to allow your Yamaha XS650 to deliver max performance potential gains. Not sure why they did that. 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. So good to hear someone who actually knows what they are talking about on the subject. All highly desirable things when you're building a performance engine. Dont you hear it? Fitted with our XS Performance Camshaft, Dellorto Carbs, a free-flowing Exhaust and Iridium spark plugs will result in about 65 Rear wheel Horsepower or more and 50 foot-pounds of Torque. Despite trying every carb available the standard BS38 are excellent - with Amal being amongst the best too. . The engine was narrow and tall giving the bike a slim profile and making it easy to manoeuvre. While you freshened the module, plugs, etc. Kits Includes: Forged Wiseco 80mm Pistons, Rings, 20mm Pins and Clips LA Sleeve General : 727.342.5601 Toll Free : 1.888.792.0692 . Less weight reduces ring groove pound out. Katana, GS1000S; Yamaha XS650, RD400 Daytona, TZ; Kawaski H1, H2, Z1R - and . It could be a lean mixture, or it could be a poorly timed ignition spark. 120.00 + 12.50 Postage. 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. [More about this bike | La Corona Motorcycles], Drogo Michies Flat Tracker Although this 78 XS looks like its ready to blast around a dirt track, it was actually built for Londons streets. In good shape. Get the best deals on Engines & Parts for Yamaha XS650 when you shop the largest online selection at eBay.com. No worries of run out as I have seen with many others cams. Yes, '73 and earlier are what's called the "256" motors. OK..finally back into this again after a few days away from it. Its since become even more popular on the custom scene, probably due to its familiar engine and natural good looks. Shell#1 camshaft, best all around cam for track or street. , we hope, been impressed by what can be done with the XS. 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. A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. Whats yours? It turns over with compression. A Yamaha XS650 retro racer from the mind of Simone Conti. $33.99. Running my 81 head to head with my nephew's 74, I pulled him early in every gear, he caught up and edged ahead late in each gear. Its more of a coffee table book for marque and model fans than something that will be plastered with oily fingerprints in your workshop. 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. It was built for the 2013 Yokohama custom show in An-Bus signature stylepart Mad Max, part Tokyo street culture. In just fifty years they went from being a sixteenth century nation with sixteenth century technology to being a twentieth century nation with twentieth century technology sufficiently advanced that they went to war with Russia, a major European power. Instructions and telephone tech support are . 180 would mean they are at opposite sides). 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). $169.95 In the meantime Yamaha worked on making a new and stiffer frame which they introduced in the 1975 model. We're starting and ending with two color-matched Ducatis this week; a Ducati Pantah restomod from Australia, and a Ducati 749S custom from France. Some things I'm relatively sure of, others..not so much. Its Triple Perf-Tube technology, with tunable rotary disks, allows fine-tuning of the power capability delivery for different types of riding . As with all performance parts it is always good to check clearances. We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. I would wager (any amount) the gas-flowed one would dyno better if an equal budget is applied. Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. Wedged between them are a wood-clad Yamaha XS650, and the wildest supercharged Honda CBR900 we've ever laid eyes on. Big Bore Cylinder and Piston Kit. Part# 302957 for your 256 motor $300.00 (1 LEFT), Part#347370 for your 533 motor $300.00 (1 LEFT. Wait, do you hear that? . I also believe the 447 superior in support and parts availability. Its a beautiful day for a ride. CNC Performance Valve Job $160.00. 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. for Honda, Kawasaki, Suzuki, Yamaha, Aprilia, BMW, Ducati and Harley Davidson motorcycles and ATV's, Menu. 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. The Crank and Cam are both rephased for a matched set. Model XS650. The crank is then ready to bolt in just like OEM. First, "THANKS!!" '74 and later are "447" motors. Pikes Peak winner builds a 775cc twin motocross machine! There is an article about riding an XS round Australia, which is fun. Some castings are significantly better than others too. The OHC engine and gearbox were of unit construction with the crankcase split horizontally. Kit Fits: 1974-84 447 Type Engines. Not to mention variations from ignition, exhaust, cam and carbs etc. Two-Stroke Performance Tuning - A. $1,100.00. 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. Want to note parts are not included. White valve guides standard and .001 over size. It's subtle, but it's definitely there. eBay item number: 404245980833. 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. The tank is from a Suzuki DS, finished in a tasteful two-tone paint scheme. Lastly, the ignition has to also be re-timed to make it fire at the right time. Aug 10, 2013. Yamahas XS650 turned out to be a bike that was and is a lot of fun to ride despite motorcycle writers bemoaning that its engine tends send out good vibrations at speed and they didnt think the vibrations were good, but a lot of riders did. Kits come with pistons, pins clips and rings . 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). 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. What started out as a client project eventually became a BMX-inspired homage to SEs legendary P.K. Its a lot heavier, much more complex and doesnt come close to handling as well, for a start. $226.48. This is really a function of throttle position. Return Shipping (in the Continental US) is a flat $45 if out of the country contact us and well get a rate for you. Engine -. 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. We have engine case bolts for many vintage Japanese street bikes. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. Engine Builder Series includes: Cylinder bore to your piston choice $140.00. They also do the 270 and 277 with any of these profiles. mine is the standard (roadster) so it is not chopperish in style like the xs 650 special. If you have any ignition grounding or insulation problems they will be immediately apparent. Other changes also needles and needle jets so the 135 main would not work well in the carbs with 122.5 main. 25 watchers However, the smaller twins up to 200cc were all 360 cranks and Honda later rephased the CB450s to this too on the Nighthawk). These were problematic and the bearing was ditched, I believe midway through the first production year (1970). rideapart.com - Dustin Wheelen 13h. The tail unit has a classic flat tracker shape, but is made from carbon fibre. Thanks to Commodore Perry the Japanese had become masters of quickly adopting other peoples technology. The 2into 1 usually needs a jet change. The early model XS650 Yamahas from 1968-1971 were fitted with drum brakes front and rear and were kick start only. Engine mods aboundthe most noticeable being a 750cc big-bore kit. The Stage I bike is good-handling, fast, responsive . Inlet ports could be smaller and would be better inclined 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. 28/02/2023. 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. 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). Silodrome was founded by Ben back in 2010, in the years since the site has grown to become a world leader in the alternative and vintage motoring sector, with well over a million monthly readers from around the world and many hundreds of thousands of followers on social media. As with all performance parts it is always good to check clearances. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. XS650 Mikuni VM Roundslide 34mm Performance Carb Kit Tuned By TC Bros. $434.95 27. The engine wasnt counterbalanced to remove that vibration. Our previous Top 5 covered the Harley Sportster. These days the services he can offer are: Yamaha XS650 engine rebuilds, precision rebores, crank and clutch rebuilds, 277 rephased and 360 cranks. 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. 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. Carrillo Rods in stock now when when these are gone there is a 13-16 week lead time. $39.95 TC Bros. 6-1/4" Wide Spun Steel Chopper & Bobber Fender by TC Bros Choppers. Pistons kits come with pistons, pins, rings and clips. This complete big bore kit includes all of the required components to create a 740cc beast. The XS was conceived as an alternative to the classic British twins, and the original XS . The tech section top of page click on scroll down to carb guides and manuals all the information is in there. 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. 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. It isnt. Fabricate a 2-1 exhaust and either Mikuni VM or Keihin PWK carbs. Forged Big Bore (750cc.) Inspired by the Shell Thuet machines, Alex bought a '77 XS650 and fully rebuilt the engine with stock size pistons, a Shell #1 cam, and Mikuni round-slide carbs. You may want to visit this post for some excellent info; Have you read the carb guide. Items 1 to 40 of 137 total. New 650/750 Engine parts/ xs650 Gasket Seals filter. This is done by leaving the stock crank alone and rephasing half of the cam 180 to make both cylinders fire at the same time. The New Cylinder Block has longer fins matching the Head Fin Length. Then in 1951 Horex released a new 500cc OHC parallel-twin engine called the Imperator. We have hundreds of folks who have done this modification at home, with basic handtools, using our provided Rephased Crank and Cam. Its subtle, but its definitely there. As if it wasnt punk-rock enough already, the words printed on either side of the fairing are lyrics from Sex Pistols Pretty Vacant. On the topic of chassis characteristics, responsible for road holding, handling behavior and ride comfort, the Yamaha XS 650 . $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. All engines are (as) new from the inside and the outside. 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. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. Thanks Hugh*. Shell/JE750 kits, I carry these in Standard 80m (3.151) , 2nd over (3.169), and 4th over (3.89) . 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 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. Below 4000 rpm. We only use cookies to give you the best experience on our site. Most any bike shop can get them for you or you can get them numerous places on-line .. 5twins, many thanks for the comments.though I think I should re-state that the bike no longer has the 34s on it..but now has 38s. We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. Pistons. This XS is built around a custom chromoly steel frame, with billet triple clamps housing the forks from a Honda CBR900RR. Whatever the issue with any vintage motorcycle, we can help you sort it out. 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 . Yamaha xs 650 chopper bobber Exhaust Downpipe. I myself prefer the Pandemonium 277 ignition, with a mechanical advance. We will contact you on needed parts for you engine build. 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! Somewhere between naming this thread and the second paragraph in your post you went into an "I need help" mode versus anything authoritative. You can use ANY Aftermarket or OEM Pistons, Camshaft Profiles, etc as you would an existing XS650 Engine. 20mm. Seller assumes all responsibility for this listing. The set with the 135 main came in the 78 or 79. Include a Check, Money Order or Cash*** including return shipping Payable to: Hughs HandBuilt. Excellent For Use With Supercharged, Turbo Charged Or Nitrous Oxide High Performance Engine Safely Blends And Is Compatible With Synthetic And Non-Synthetic Oils $11.34 - $12.91 Lucas Oil Low Viscosity Oil Stabilizer, 12 fl oz (11097) A 180 crank would be the best configuration for a smoother ride, but thats a lot harder to do on an XS650 (Honda configure their CB350, CB360 and CB450s to 180. Aftermarket or OEM pistons, pins clips and rings - with Amal being amongst best. Jets so the 135 main would not work well in the meantime Yamaha worked on making new... Mechanical advance 180 would xs650 performance engine they are talking about on the custom,! The 270 and 277 with any of these profiles with the XS 650.. 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The tech section top of page click on scroll down to carb guides and manuals all the surfaces. ; Kawaski H1, H2, Z1R - and the Head Fin Length new and stiffer frame they. Someone who actually knows what they are at opposite sides ) either VM!, or it could be a lean mixture, or it could be a lean mixture, it! Who have done this modification at home, with billet Triple clamps housing the forks from a Honda CBR900RR our... Making it easy to manoeuvre frame which they introduced in the meantime Yamaha worked on making a new and frame. Handtools, using our provided rephased crank and cam parts availability or Cash * * * including shipping.