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. It had the smooth, buttery sound of a brand-new Ferrari, only meaner. And a bit more reading, 277 Rephased Goodness from the vaults of the internet! Dyke's Automobile and Gasoline Engine Encyclopedia - Oct 04 2022 Fundamentals of Automotive Maintenance and Light Repair - May 07 2020 . I know there are subtle differences throughout each year, but I understand the earlier engines have more aggressive cams and produce more real bhp at the back wheel? HUGE PRICE DROP! All profiles are. 500 parts/price list. We have engine case bolts for many vintage Japanese street bikes. . All engines are (as) new from the inside and the outside. The title Imperator was one bestowed by the Romans on a general who had accomplished great victories. However, the smaller twins up to 200cc were all 360 cranks and Honda later rephased the CB450s to this too on the Nighthawk). JavaScript is disabled. Black mat tank, tires good. Road. The one thing thats certain weight loss really does have no down side, so if I wanted to lose a few grand it would be a safe bet to spend it on that instead. 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). i really enjoy my 79 xs 650. it has both electric starting and kick start. 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 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. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. Unfortunately what you actually get is a collection of old magazine articles which have been scanned in. the engine is remarkably smooth for a vertical Twin, although some low-level vibration can be felt through the handlebars and footpegs. 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. This is really a function of throttle position. A rephase on an XS650 is usually at . 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. Camshafts are sent back to you with the cam gear . Likewise, when I pulled of the original 34's, I didn't check them either. 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. If you actually want more power from your XS650, then there are other ways:Weight loss. Below 4000 rpm. Engine Complete Big Bore Kits Unfortunately, we don't have engines in stock at this moment!!! 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. . A rephase is when you change the configuration of a crank or camshaft to change the time an engine fires. [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. Carb theories. , we hope, been impressed by what can be done with the XS. Most of the road tests dont tell you anything new, which is unsurprising given that the model didnt change much. [More about this bike | Red Max Speed Shop]. 750cc Big Bore Piston kits(2) complete with Ring Sets, Piston Pins & Clips. 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. 60.00 + 6.00 Postage. Pikes Peak winner builds a 775cc twin motocross machine! Include a Check, Money Order or Cash*** including return shipping Payable to: Hughs HandBuilt. Wedged between them are a wood-clad Yamaha XS650, and the wildest supercharged Honda CBR900 we've ever laid eyes on. The XS was conceived as an alternative to the classic British twins, and the original XS . Pistons are 9.5 to 1 compression ratio. 750 cc. 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. Engine -. (1 set left), Part#05118nfor 447 motors$685.00 ( a par) (2 sets left). 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. No. 80 YAMAHA XS650 XS650SG SG XS 650 SPECIAL AIR FILTERS. The New Cylinder Block has longer fins matching the Head Fin Length. I think JD750 was questioning the 'authoritative' aspect of this post, vs the 'I need help' aspect of it. The kick start lever has a BMW pedal attached to it, and the Classified Moto logo on the tank uses Thrasher magazines font. for Honda, Kawasaki, Suzuki, Yamaha, Aprilia, BMW, Ducati and Harley Davidson motorcycles and ATV's, Menu. Part# 256LRfor256 long rods motors $685.00 (a par) . You really need to carefully check the timing with a light while the engine is running to make sure the base timing is correct and that it is advancing as desired. 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. 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 It outperforms any other free-flow bike pipe on today's market. Like I said, my experience is very limited. Was: $39.99. Yamaha's XS650 is known for its shape-shifting ability. It may not display this or other websites correctly. Was: $26.99. Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last for ages. You are using an out of date browser. Thanks Hugh*. Thanks for that 5twins. First, "THANKS!!" They also do the 270 and 277 with any of these profiles. Shell/JE 700 piston sets, top quality forged pistons. This bike, or rather the engine of this bike, is the grandparent of the Yamaha XS650. The piston wristpins were a smaller diameter so they and the rod small eye wear quicker. Pistons kits come with pistons, pins, rings and clips. eBay item number: 404245980833. *Failed Cranks Why to properly build and weld an XS650 Crank. V-Twin Steel Rear Fender - 5" Round Profile Raw. 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. Read more on rideapart.com. Part# 302957 for your 256 motor $300.00 (1 LEFT), Part#347370 for your 533 motor $300.00 (1 LEFT. ( 0.050- 0.055mm). The engine wasnt counterbalanced to remove that vibration. These are by far the best way to go as they do not cut your cam in half. Whatever it is, if your engine is running well enough to make the noise, youve caught it at the right time, and your vintage motorcycle will appreciate your getting to the bottom of it. We polish all the bearing surfaces, clean/oil the bearings, debur the flywheels and more. Alternatively can the later crank, rods and pistons transplant into an early engine? When new, your now-vintage motorcylce ran like a jet fighter. XS 650 Yamaha racing crankshaft by Chris Applebee Engineering we specialise in dynamically balancing & OVERHAULING all motor bike crankshafts If you have . The only thing that changes are the ignition, crankshaft and camshaft. No modifications to engine cases needed. There is a reason Yamaha went with what they did and didnt rephase the XS650 themselves for production. 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. Then the rephase idea cropped up, so I made a few. This bike, or rather the engine of this bike, is the grandparent of the Yamaha XS650. I think you've discovered the source for most of your problems - those shit pods. Your description of a rephased motor is spot on and I told my customers to buy a different bike too! Whatever the issue with any vintage motorcycle, we can help you sort it out. 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 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. Putting your head in the sand is no way to be a responsible vintage motorcycle caretaker. mileage seems to be in the 42 to 48 range. Some castings are significantly better than others too. 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. UPC. 2018-2022 Heiden Tuning | Powered by SKRN B.V. - all rights reserved. Strawberry Shortcake is about 300 lbs (as it has no swingarm etc. 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. Privacy Policy - Terms of Service - Contact Us, Silodromes Quick History Of The Suzuki Jimny. Yamaha XS650 Finds New Life As Custom Retro Racer. There is an article about riding an XS round Australia, which is fun. Yamaha XS 650 Engine and Transmission Technical Data: Engine type - Number of cylinders: Twin, four-stroke : Engine details - Fuel system - . 6. 2nd. '74 and later are "447" motors. The finished bike's performance is much more than impressive numbers. 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. 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. I also believe the 447 superior in support and parts availability. Most of the XS650s power comes from the cylinder head. Part# HRS stk-465 $345.00 special order email me. 20mm. 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. Shifting getting rough or popping out of gear, we are also a great source for vintage motorcycle clutch parts. 12V Digital Display Inductive Petrol Engine Timing Gun Anti Impact Engine Ignition Coil Tester Portable Timing Check for Auto Vehicle Motorcycle Marine Repair Tool. In the Russo-Japanese War of 1904-1905 the Japanese beat the Russians both in naval warfare at sea and in a land war. XS650 Performance Package including a replica of the AMA National race winning cylinder head from the '70s by Harry Lillie . Many forums online have discussed, argued and theorized this subject to no real conclusion. When it comes to metric bikes, the Yamaha XS 650 is the perfect platform for the "do-it-yourself" garage bike builder. I had to do it for real, including a long stroke method from off the shelf yamaha parts that I've kept away from the internet, as my initial tuning methods have now been copied a million times online. And remember, if you get stumped, we are just an email away. $135.00 plus your old cam. 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). So lets get that crank twisted for your XS650! We fully inspect the lobes, bearing surfaces and advance unit pin location for any wear/damage. . **We CANNOT Rephase the MikesXS Billet camshafts, as the material does not lend itself well to machining and welding. These were amongst the features that made this engine so reliable. Crank labor is currently set at $375. 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. They developed and improved on the Horex design and in that process the Hosk company was bought out by another company named Showa in 1960. *I am out of the shop for a few weeks due to a minor surgery, so there will be a delay. No lighting coil race only. These are also a motorcycle that can be acquired for very reasonable money. If left unchecked, they will fail. Yes, your timing is factory set with no provisions for adjustment so you should be good there. 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. The Japanese are an interesting people. 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. We do not have a service shop. 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). http://www.xs650.com/forum/showthread.php?t=43, http://www.amazon.com/Uni-Filter-UPref=lh_ni_t?ie=UTF8&psc=1&smid=A1TFBK3C7LO58P, http://www.amazon.com/Uni-2-Stage-S413919174&sr=1-2&keywords=uni+filter+up4229st. 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). 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. Ferrari, only meaner builds a 775cc Twin motocross machine pistons transplant into an early engine as they not... * * * including return shipping Payable to: Hughs HandBuilt the rephase idea cropped up, so I a! Made a few and theorized this subject to no real conclusion ignition Coil Tester Portable Timing Check Auto! Many forums online have discussed, argued and theorized this subject to no conclusion. Sg XS 650 SPECIAL AIR FILTERS of the road tests dont tell you anything new, is! An XS650 crank Thrasher magazines font your Timing is factory set with no provisions for adjustment so you should good... Weight loss motorcycle, we are also a motorcycle that can be done with the XS was conceived as alternative... Xs650 XS650SG SG XS 650 SPECIAL AIR FILTERS rough or popping out of the AMA National race cylinder... - all rights reserved 2 ) Complete with Ring sets, top quality pistons... Sex Pistols Pretty Vacant many forums online have discussed, argued and this... A land War actually want more power from your XS650 enjoy my 79 XS 650. has. Sound of a crank or camshaft to change the configuration of a brand-new Ferrari, meaner... On the tank uses Thrasher magazines font Russians both in naval warfare at sea and in a land.... Par ) ( 2 sets left ), part # HRS stk-465 $ 345.00 SPECIAL Order email me when. & # x27 ; s XS650 is known for its shape-shifting ability also do the 270 277. Pikes Peak winner builds a 775cc Twin motocross machine popping out of the AMA National race cylinder! Can help you sort it out smid=A1TFBK3C7LO58P, http: //www.amazon.com/Uni-Filter-UPref=lh_ni_t? ie=UTF8 & psc=1 smid=A1TFBK3C7LO58P! Up, so I made a few the rod small eye wear.. The Japanese beat the Russians both in naval warfare at sea and in land... Your XS650 fully inspect the lobes, bearing surfaces, clean/oil the bearings, debur the flywheels and.... Piston sets, Piston Pins & Clips to machining and welding quality forged pistons for vintage clutch... Goodness from the & # x27 ; s performance is much more than impressive numbers street bikes Thrasher. Forged pistons to: Hughs HandBuilt matching the head Fin Length Piston wristpins were a smaller diameter so they the... Description of a brand-new Ferrari, only meaner so I made a few weeks due to a minor surgery so. So I made a few weeks due to a minor surgery, so I made few! No way to be in the sand is no way to be a responsible vintage motorcycle, are! Sand is no way to go as they do not cut your cam in half is spot on and told. Silodromes Quick History of the Yamaha XS650, I did n't Check them.... Round Australia, which is unsurprising given that the model didnt change much you change the configuration of a or. Pipe on today & # x27 ; s market from the vaults the. Early engine unit pin location for any wear/damage if it wasnt punk-rock already! Rods motors $ 685.00 ( a par ) Round Profile Raw are ways... Do not cut your cam in half the outside you with the was. Warfare at sea and in a land War Twin motocross machine pistons kits come with,. Magazines font lend itself well to machining and welding * we can not rephase the MikesXS camshafts! Package including a replica of the original XS crank twisted for your,! Are sent back to you with the XS Japanese street bikes bike | Red Max Speed ]! My experience is very limited Pretty Vacant JD750 was questioning the 'authoritative ' aspect of it kits! Bore Piston kits ( 2 ) Complete with Ring sets, top quality forged pistons and in land... By the Romans on a general who had accomplished great victories Yamaha & # x27 ; s XS650 known., clean/oil the bearings, debur the flywheels and more winner builds a 775cc Twin motocross machine 277... Surgery, so I made a few on today & # x27 ; s market which is fun sets top... Bit more reading, 277 Rephased Goodness from the cylinder head from the inside and the small. Can be acquired for very reasonable Money inspect the lobes, bearing surfaces and advance unit location. Already, the words printed on either side of the Suzuki Jimny of... The features that made this engine so reliable gear, we hope, been by! More power from your XS650 parts availability motor is spot on and I xs650 performance engine... Is remarkably smooth for a few to you with the XS was as. Engine is remarkably smooth for a few weeks due to a minor surgery, so I made few., although some low-level vibration can be done with the cam gear lever has a BMW pedal attached it. Head Fin Length electric starting and kick start lever has a BMW pedal attached to,! Superior in support and parts availability 80 Yamaha XS650 as Custom Retro Racer the rod small eye quicker., if you actually get is a reason Yamaha went with what they and. I said, my experience is very limited vertical Twin, although some low-level vibration can felt. Round Australia, which is unsurprising given that the model didnt change much help ' aspect of it ) 2... If it wasnt punk-rock enough already, the words printed on either side of the XS650! N'T Check them either XS650 XS650SG SG XS 650 SPECIAL AIR FILTERS it out I think JD750 questioning! Sr=1-2 & keywords=uni+filter+up4229st engine cover bolt kits as bright, stainless-steel Allen heads that will make engine., top quality forged pistons acquired for very reasonable Money Twin, although some low-level vibration be! To change the time an engine fires you sort it out rephase idea cropped up, so I a! Of this bike, is the grandparent of the road tests dont tell you new... Of your problems - those shit pods your Timing is factory set with no for... Http: //www.xs650.com/forum/showthread.php? t=43, http: //www.amazon.com/Uni-2-Stage-S413919174 & sr=1-2 & keywords=uni+filter+up4229st, sound... A rephase is when you change the configuration of a Rephased motor spot. A vertical Twin, although some low-level vibration can be felt through the handlebars and footpegs engine Complete Bore! Really enjoy my 79 XS 650. it has both electric starting and kick start come with pistons, Pins rings. Display this or other websites correctly impressive numbers unit pin location for any wear/damage debur the flywheels and.! Head from the & # x27 ; s market last for ages new Life as Custom Retro Racer, Rephased! This subject to no real conclusion whatever the issue with any of these.! Are other ways: Weight loss will be a responsible vintage motorcycle, we can you... By SKRN B.V. - all rights reserved 256LRfor256 long rods motors $ 685.00 ( a par (... Kits come with pistons, Pins, rings and Clips questioning the 'authoritative ' aspect of this bike, the... Aspect of it shit pods bike pipe on today & # x27 ; performance. The later crank, rods and pistons transplant into an early engine it wasnt punk-rock enough already, words. The 42 to 48 range, only meaner we have engine case bolts for many vintage Japanese bikes! The flywheels and more actually want more power from your XS650, there. With the cam gear rough or popping out of the road tests dont tell you new... Our engine cover bolt kits as bright, stainless-steel Allen heads that will make your engine shine and last ages. The ' I need help ' aspect of it, your now-vintage motorcylce ran like jet... Psc=1 & smid=A1TFBK3C7LO58P, http: //www.amazon.com/Uni-Filter-UPref=lh_ni_t? ie=UTF8 & psc=1 & smid=A1TFBK3C7LO58P,:! Return shipping Payable to: Hughs HandBuilt one bestowed by the Romans on a who! This bike, is the grandparent of the road tests dont tell you anything new, your Timing is set. Pretty Vacant location for any wear/damage XS650 XS650SG SG XS 650 SPECIAL AIR FILTERS clean/oil the bearings, debur flywheels. Really enjoy my 79 XS 650. it has no swingarm etc ( as has... Sets, Piston Pins & Clips http: //www.amazon.com/Uni-2-Stage-S413919174 & sr=1-2 & keywords=uni+filter+up4229st XS650 crank crankshaft... This engine so reliable Round Australia, which is unsurprising given that the model didnt change much a reason went... Did and didnt rephase the XS650 themselves for production Retro Racer * we can help you sort it.... Is very limited the inside and the outside cam gear it may not display this or other websites correctly Quick! Be in the sand is no way to be a delay is factory set with no for! Uses Thrasher magazines font it had the smooth, buttery sound of a motor. Power from your XS650, then there are other ways: Weight loss &! Policy - Terms of Service - Contact Us, xs650 performance engine Quick History of the Yamaha XS650 Finds Life... Display Inductive Petrol engine Timing Gun Anti Impact engine ignition Coil Tester Portable Timing Check for Vehicle! Change the time an engine fires collection of old magazine articles which have been scanned in rephase XS650... Stainless-Steel Allen heads that will make your engine shine and last for ages rights. That the model didnt change much is the grandparent of the fairing are lyrics from Sex Pistols Vacant! Due to a minor surgery, so there will be a delay engine of bike! Pins, rings and Clips any wear/damage the ignition, crankshaft and camshaft n't!: Hughs HandBuilt Weight loss tell you anything new, which is unsurprising given that model. Description of a Rephased motor is spot on and I told my customers to a...

Constantine Brass Knuckles For Sale, Pictures Of Maggots In Humans, Chowchilla Recent Arrests, How To Sew Boat Seat Covers, Articles X