Rd350 ypvs engine tuning bookshelf

Ports cleaned up, stock pistons balanced, new std rings. It had a paralleltwin twostroke engine with identical bore and stroke of. You cant help but enjoy the basic premise half finished in my mind of the ypvs as yamaha intended in its initial full fairing guise. Specifications, spare parts and accessories for yamaha rd 350 lc ypvs 31k are you planning to maintain and service your own yamaha rd 350 lc ypvs 31k. This reduces the ignition advance required to get complete combustion, which reduces the powerrobbing part of the engine cycle just like we wanted. Engine 1983 yamaha 350lc ypvs, dick sullivan race tuned cylinders and head. Is a banshee motor the same as an rdrz 350 motor if not what is different and what can i use from a banshee engine in rd 350 cases. See 2 results for yamaha rd350 engine for sale at the best prices, with the cheapest ad starting from. Now i have much experience with this engine and know it inside out including the electronics etc, but i have. Rdrz350 ypvs engine in my banshee banshee repairs and mods. Rd350 350lc ypvs engine rebuild and refurbishment service. Yamaha rd 350 tuning umbau mit suzuki rgv 250 teilen. The yamaha rd350 ypvs was manufactured by yamaha from 1983 to 1986. Complete bike build and design a speciality, if you can dream it we can probably build it.

Rd 350lc ypvs identification the bar yamaha owners club. It was launched at the cologne motorcycle show as the nearest thing to a road going racer ever produced. Engine 1983 yamaha 350lc ypvs, dick sullivan race tuned cylinders and head, dick sullivan modified gearbox, wossner pistons, heavy duty gearbox bearings, billet power valves, banshee crank, straight cut primary gears, billet clutch basket, vforce reeds and reed blocks, 34mm tz race mikuni carburettors, oversize tz hicapacity radiator, samco water hoses. Fully adjustable by altering the weight on the arms, can be set up for street, racing or drag racing applications. Wicked motorsports rz385 full engine build duration. The end of japanese production in 1992 saw the type re hashed and manufactured in brazil, all parts still fit but as previously mentioned build quality leaves a. The ypvs powervalve system actually reduces the onoff feeling you get with the plain lcs hence a bit of debate over which is better to make it more rideable through the midrange. Available for the rd350 ypvs later models only, excludes lc2. Rd350 ypvs engine paint the rd lc crazy uk 2 stroke forum. Take care, that right protective measures are taken. Hi guys, just trying to get back into lcs and have been looking around and have been offered a bike but the engine and frame numbers dont match but i have read some where that that did happen when some bikes were built. High quality tkrj piston kits available in standard bore and oversize from 64. Yambits rd350 ypvs crankshaft ive priced up everything else i will need for the engine rebuild and it comes to just under. Details about cdi ecu yamaha rz250 rd350 rz350 rd350lc rz350r ypvs blackbox ignitor cd4205d cdi ecu yamaha rz250 rd350 rz350 rd350lc rz350r ypvs blackbox ignitor cd4205d item information.

Rd 350lc ypvs identification sign in to follow this. In this post, well illustrate the process we followed, our findings, and the results of the computer simulations. Yamaha debuted their breakthrough ypvs power valve system that revolutionized the twostroke engine in the rd350 ypvs of 1983. Ive tried searching for threads on here about banshee owners running the rdrz350 ypvs engine, but the search doesnt come up with much. Hi, i have the r model like a f2 but with twin headlamp fairing. Floydy racing two stroke tuning john floyd posts facebook. Here you have some close pictures of the damage its engine. Yamaha rd ypvs 350 part 3 engine strip spare engine crmc race bike rdlc tuning duration. Yamaha rz350, rd350 ypvs piston kit, tkrj hvccycle. Cleared a space at the bottom end of the garage and made a shelf out.

Considerably more hitech than anything before, the powervalve won many a heart, and race too, in more modern times, as people flock to elsie ownership, it may lag behind in the desirability stakes, but the ypvs is still an attractive proposition for restoration. If you are after a forged piston for your yamaha rd 350 then look no further than wossner. Aug 22, 20 hi, im painting my 31k engine and need advice on paint. Ive had my shee for 18 months and it already had the ypvs engine fitted. Rd 350 vs gsx quarter mile drag race mizoram duration. The ignition timing is not adjustable on the stock bike, so there is a page in this tuning guide which tells you how to. While the base preload only as set by the oem top adjuster andreani fork kit has now been superseded by a.

Mar 08, 20 hi guys, just trying to get back into lcs and have been looking around and have been offered a bike but the engine and frame numbers dont match but i have read some where that that did happen when some bikes were built. Result power boost is about 200 rpm earlier max 5% more power the extension of the outlet is often hailed as the most important measure. It might have produced less than 50bhp and had a top speed of not much more than 100mph, but for many riders yamahas brilliantly raw, racy r350lc was the high performance bike of the 1980s or any other decade, come to that. I know the engine was black, but what i dont know is whether it was matt, satin or gloss. Originally it produces 4750 bhp all bhp figures on this site are rear wheel figures unless other is written, and with some simple modifications that i will describe on this site when i get the time you can raise that to 5565 bhp. Yamaha rd350 ypvs is a motorcycle that yamaha made from 1983 to 1986.

This paralleltwin 2 stroke engine from an 80s yamaha rd350 ypvs, claimed to be the nearest thing to a road going racer ever produced by mcn in 1982, was brought in to me recently for restoration. Tuning of an rd 250 350 twostroke engine 7386 tuning. Yamaha sport rd 350 lc ypvs rd350 rd250 tzr250 rgv250 rs25. Find amazing local prices on yamaha ypvs for sale shop hasslefree with gumtree. Hi, im painting my 31k engine and need advice on paint. This means that the mixture in the combustion chamber is nearer to the spark, and the flame spreads through it quicker. This was for two reasons, one that i had the lc stator in the ypvs engine, and two, because i was using a zeeltronic and so needed to set it so that i had as much advance as possible in the system in case i wanted to use it. If so, louis will provide you with all the information you need. Yamaha rd350 ypvs engine parts top end yamaha rd350ypvs engine parts bottom end. Enter your email address to receive alerts when we have new listings available for. Rdrz350 ypvs engine in my banshee banshee repairs and. Considerably more hitech than anything before, the powervalve won many a heart, and race too, in more modern times, as people flock to elsie ownership, it may lag behind in the desirability stakes, but the ypvs is still an attractive. Adjust your ignition timing with this billet adjustable timing plate, makes adjustment easy. As if the original lc wasnt enough yamaha went several stages further in 1983 with the introduction of the ypvs equipped version.

I do not sell anything and have no business interests with this website. This kit is made in italy by athena and is a better quality one than the budget one we sell which is made in taiwan. Rd350banshee engine banshee repairs and mods banshee. No need for strobes and dial guages, just slacken 3 bolts, rotate to the timing required, tighten back up and away you go. Contact me via email, use the form or discuss with me on i look forward to suggestions and will reply. This is lees harris lowboy framed yamaha 350 ypvs race bike. Cleared a space at the bottom end of the garage and made a shelf out of an old. Available to special order, a billet lock up clutch assembly, and outer casing for the yamaha ypvs 350. Youll need new tires and a new battery, but apart from that it should not be too bad. My other yamaha 2 stroke twin is the 85 f1 and that is basically my version of a nut n bolt restoration with extras.

Yamaha rd350 ypvs f1 plymouth, devon yamaha rd350ypvs f1, 31k, 1985 b reg, uk bike, engine has reconditioned engine,crankshaft fitted with genuine yamaha oil seals, rebored new pistons 1. With a paralleltwin twostroke engine producing 60 bhp, this lightweight pocket rocket was a mighty success for yamaha right. The engine was still a paralleltwin twostroke with liquid cooling but improved with revolutionary ypvs yamaha power valve system. The water jacket maintained a constant temperature and allowed the engine to be in a higher state of tune without loss of reliability. As you can see from the following pictures, i had to strip paint off some parts before i could vapour blast them but you can see the results. I know that this has probally been covered about a dozen times, but i cannot find anything on this topic.

If you mill inlets and outlets of the barrel, absolutely used eye and respiratory protection. Cdi ecu yamaha rz250 rd350 rz350 rd350lc rz350r ypvs. The tzr 250 did carry on the embodiment of the early ypvs, but the miniature engine was a completely fresh design with more in common, parts wise, with the rd500lc than the 350 twin. To improve performance further, the new yamaha rd 350 ypvs was fitted with lighter frame, new exhaust, monocross rear suspension, triple disc brake at front and single disc brake at. Yamaha rd350 lc ypvs oldtimerverhalen in auto motor klassiek. In the ypvs engine, the combustion chamber is narrower than the piston. Yamaha rd350 ypvs top end gasket kit athena top end gasket kit for the yamaha rd350 ypvs, fits all years f1,f2 31k 1ua etc.

Much more important are the measures below the piston. Only needed on high horsepower engines a lock up clutch will prevent clutch slip at high horsepower. New yamaha rd350 ypvs f2 carb rebuild kit overhaul refurb powerjet. What type of engine oil and which brake fluid should you use. I just need to take the leap and buy the bits, it seems a lot of money to shell out when this is the first engine ive ever rebuilt, i just hope the thing runs when ive finished. This bike will be used to compete in the post classic 750cc clubman class with crmc, and also various other trophy races the crmc put on throughout the season. Our mission is to tune your engine to its maximum potential for its specified application. Complete coverage for your yamaha rd350 ypvs twins covering 347cc models for 1983 to 1995. Genuine rd250350lc 19801982 parts colors 4l0 4l1 4l2 4l3 4u0 4y3 5e0 5e1 5j5 models download the pdf file reference pictures of brand new bikes. This translates into a dramatic increase in engine efficiency and performance across the entire powerband, from startup to wide open throttle. They worked with the tuning works in the uk to improve the kit, and ttw has sold a lot of these kits to the rgv boys. All tuning and road and race prep engine rebuilds available. Upgrade your standard plastic covers with a range of billet items. Universal fit m10 stainless steel extended brake line for.

Yamaha rd350 ypvs full fairing in used condition hi here for sale is a clock bracket and rev counter. The engine in the yamaha rd 350 ypvs is a very robust construction. For high performance use in the rd350, rd400, rd350lc, the intake ports are larger than in the standard pistons. Yamaha rd 350 ypvs and yamaha rd 500 v4 together duration. View of my rd 350a engines crank, bought this engine secondhand and decide to strip it down, need a rebore and a crank rebuild by the looks of it. The ignition timing is not adjustable on the stock bike, so there is a page in this tuning guide which tells you how to modify the bike so that you can adjust the timing. Note that there is a fairing part missing, the lateral fairing covers, which have been removed to open the engine. It had a paralleltwin twostroke engine with identical bore and stroke of its predecessor, the yamaha rd350lc.

You can easily machine to fit the crank but changing the stud spacing is more involved. Ive been wanting to get back to two stroke for a while and i have found one at a dealer for a reasonable. Whether its an cylinder reboring, engine tuning, a crank. Youll obviously need pistons and rings to match your re bored barrels, but the bike is a piece of piss to work on and will be ideal for getting your hand back in.

Yamaha rd350 lc ypvs yamaha heeft een indrukwekkende tweetakthistorie. Yamaha rz350, rd350 ypvs piston kit, tkrj rating select rating 1 star worst 2 stars 3 stars average 4 stars 5 stars best name. Specializing in hardtofind vintage japanese 2stroke street bike parts for yamaha, kawasaki, suzuki, bridgestone, ural motorcycle sales, zero motorcycle sales. Yamaha rd350 ypvs selector drum with spring etc rd 350 rz350 1wt f1 f2. Rd350banshee engine banshee repairs and mods banshee hq. Jul 22, 2005 ive tried searching for threads on here about banshee owners running the rdrz350 ypvs engine, but the search doesnt come up with much. For tuning the domes in the athena head are removable, and replaceable if needs be. The engine stays in place, you just take the head off. Its a fantastic looking bit of kit and has the performance to match as its a proven race winning bike in recent years. Een motor kopen of verkopen doe je via marktplaats. Jan 30, 2012 the tzr 250 did carry on the embodiment of the early ypvs, but the miniature engine was a completely fresh design with more in common, parts wise, with the rd500lc than the 350 twin. The ypvs banshee crank is also slightly wider so is not a drop in fit to the lc cases either.