Using on my 1979 Yamaha XS650 to check RPM, Dwell, and Timing. ENGINE ASSEMBLY: The XS650 is a simple straightforward motorcycle; it has no complex parts assemblies, nor does it require special tricks to avoid disaster. Katana, GS1000S; Yamaha XS650, RD400 Daytona, TZ; Kawaski H1, H2, Z1R - and . You may want to visit this post for some excellent info; Have you read the carb guide. Camshafts are sent back to you with the cam gear installed, ready to bolt in and go. This would be a great basis for a cafe or chopper or the valuable parts (seat/gauges) can be sold. 1. 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. Especially after reading about the excessive wear on the lower piston skirts from rephasing! The Stage I bike is good-handling, fast, responsive . 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. As with all performance parts it is always good to check clearances. 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. Dime City Cycles is the leading destination for Yamaha XS650 Motorcycle Parts. Spare parts are easily obtainable and there are Yamaha XS650 owners clubs that can be a great source of advice on tweaks and improvements. Its a perfect match for the British racing green Storz tank. Its more of a coffee table book for marque and model fans than something that will be plastered with oily fingerprints in your workshop. 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. As with all performance parts it is always good to check clearances. . [More about this bike | Red Max Speed Shop]. A Yamaha XS650 retro racer from the mind of Simone Conti. Shell#1 camshaft, best all around cam for track or street. If you prefer Paypal, we can process payments with a 4% fee applied to the total. Forged 447 type Pistons feature: 3. A rephase on an XS650 is usually at . The engine produces a maximum peak output power of 50.00 HP (36.5 kW) @ 6800 RPM and a maximum torque of . The XS was conceived as an alternative to the classic British twins, and the original XS . I don't mean to sound like a broken record but reading the Carb Guide should answer just about every question you've asked. 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. 750cc Big Bore Piston kits(2) complete with Ring Sets, Piston Pins & Clips. rideapart.com - Dustin Wheelen 13h. Cylinder casting has larger cooling fins that extend out the same distance as the cylinder head fins for enhanced cooling. You are using an out of date browser. 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. The kick start lever has a BMW pedal attached to it, and the Classified Moto logo on the tank uses Thrasher magazines font. Ripper to match it, complete with a set of iconic Skyway Tuff II mag wheels. The tail unit has a classic flat tracker shape, but is made from carbon fibre. YAMAHAXS650.COM ALL YOUR YAMAHA NEEDS Welcome To YamahaXS650.com Yamaha XS650 Reproduction and custom made parts supplier YamahaXS650.com supplies parts for Yamaha XS/TX650 Twins (1970-84) Only! 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. The "Special" cruiser model was introduced in 1978 and produced through 1985. Co-Built built the bespoke exhaust systemcomplete with removable baffles. 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). 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. But he's just thrown us a major curveball with his latest project: a vintage Schwinn-inspired Yamaha XS650. Its a beautiful day for a ride. It had the smooth, buttery sound of a brand-new Ferrari, only meaner. 5. A larger main jet should help the 79 carbs had 135 mains try a 140. LOTS of good info, and I really appreciate it. New 650/750 Engine parts/ xs650 Gasket Seals filter. Most of the XS650s power comes from the cylinder head. Orient Express high performance motorcycle parts since 1973! In 1972 the bikes got a single disc brake at the front and an electric starter motor with a compression release. 2nd. Performance Carb VM29; Performance Carb VM33; Carburetor Rebuild Kits. 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. You are using an out of date browser. We have engine case bolts for many vintage Japanese street bikes. 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 . If left unchecked, they will fail. 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 will contact you on needed parts for you engine build. It was built for the 2013 Yokohama custom show in An-Bus signature stylepart Mad Max, part Tokyo street culture. It outperforms any other free-flow bike pipe on today's market. 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 single has way more torque and low end, the four lots of top end power so it comes down to where you want the power. 100% checked gearbox, with correct clearances, no worn gears. Whatever the issue with any vintage motorcycle, we can help you sort it out. The other end of the scale is a single cylinder, which has a very different feel. Opens in a new window or tab. When new, your now-vintage motorcylce ran like a jet fighter. At some point in their learning process, most riders will discover that their motorcycle has developed a new, odd sound. If youre inexperienced, you may wonder if youre hearing things. Yes, get UNIs. So lets get that crank twisted for your XS650! ), which would translate to 78 HP in comparison to the stock machine. 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. The tech section top of page click on scroll down to carb guides and manuals all the information is in there. I have a 1988 FZ600 rolling frame (roller) with an engine that needs more work and $$$ than what it's worth. AS A YAMAHA XS650 owner struggling to keep my recalcitrant but beloved mount rolling over a 25-year period, Ive often been frustrated by the lack of information available about the model, apart from my grubby Haynes manual, which can lack important information. 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). . Some folks just add parts so they can say that they've tuned the bike. 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. 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 engine has a 360 crank which means the pistons go up and down together, sort of like the twin cylinder bike you have when you really want a single. Flat track specialists Red Max Speed Shop supplied a Champion seat, Trackmaster tank and Koni rear shocks, and took care of the frame mods and powder coating. 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. Model XS650. you never said that you ensured it is timed properly. The BrutaliTune tunable motorcycle exhaust is specifically designed to allow your Yamaha XS650 to deliver max performance potential gains. Was: $39.99. If you want an XS650 thats better on freeways,I cant help thinking you have the wrong bike. This is an exchange item. The XS650s main competitors either had push-rod engines with vertically split crankcases (the ones that cause landladies to complain about the oil stains on the apartment carpet) or they were not unit construction having the engine and gearbox separate. Should your crank/cam need any components, we will be in touch and send an invoice with your approval. There is an article about riding an XS round Australia, which is fun. Bell 1999-11-28 Engine-tuning expert A. Graham Bell steers you through the various modifications that can be made to coax maximum useable power output and mechanical reliability from your two-stroke. ( 0.050- 0.055mm). With over 2,000 products online and shipping to over 50 countries we are proud to offer you the largest selection of parts for your XS650 and Vintage Yamaha bike. Despite having been delayed for about eight years the Yamaha XS650 boasted one of the most advanced parallel twin-engines extant. Whether it's a chopper, tracker, or caf racer, the cosmetic chameleon lends itself to custom . Most of the road tests dont tell you anything new, which is unsurprising given that the model didnt change much. 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. Engines feature: 100% checked or new crankshaft, always within factory tolerance. DO YOU HAVE A QUESTION? For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but does at least tell you things you actually need to know. JavaScript is disabled. . This also equates to less mid-range torque). I also believe the 447 superior in support and parts availability. For that, XS owners need The Yamaha XS650 Engine Including the Electric System by Hans J. Pahl, which is less entertaining, but . Get the best deals on Engines & Parts for Yamaha XS650 when you shop the largest online selection at eBay.com. Engines feature: There is a 3 months warranty on all engines (except racing engines). One thing is for sure, though: That noise is the sound of your pistons taking a beating. . JavaScript is disabled. Instructions and telephone tech support are . Camshafts are sent back to you with the cam gear . 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). 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. Category -. . The paint was done by Kevin Hooper, and was inspired by a 70s BSA flat tracker. Performance Tool W1189C SAE Offset Distributor Clamp Wrench. 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). 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. greeves challenger rolling chassis c/w engine plates for triumph 350/500 engine. 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. Stock Piston size is around 74.945mm. So, you gear up and head out the door. Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. Excessive wear on the tank uses Thrasher magazines font on all engines ( except racing engines ),. 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