The high quality is evident once you hold one in … If its too close take a file to it and get it in spec. If you want to just pick one up at your leisure and want to save some money, get the wiseco. The only reason I think its a wossner is that I can tell it has that black coating on the side when looking at it through the exhaust port. If that's directed at me, I never said National #57 Roy Schellenberger worked on his bikes. These pistons need to be installed with the offset to the thrust side of the engine. ALL my pistons are designed from a blank sheet of paper and made with custom components (No, they are not 100% Wossner). Wossner pistons are measured 90 degrees from the pin axis at the widest point on the piston skirt. It wiped out his cylinder in the process. Wössner GmbH. Try. Wossner Piston Installation Instructions and ring end gap Important: Inspect all of your pistons, pins, rings before installation or modification.Parts that are altered, scratched, or damaged are non-returnable. Sorry For confusion. With Wisecos we like to drill a line of holes at the exhaust bridge. Your ridiculously stupid comment that 99.9% of riders dont need a forged piston.. Cast pistons are fine as long as your bore is within spec. You can go run your cast and us people who like to not have pistons break inside our engines run forged. For the development of our snowmobiles, we work with our partners in the Scandinavian countries as well as with pr Now lets talk about your 2 stroke dirt bike. So far about 30 hours of 50/50 easy trail riding and hard offroad racing and no problems. hi guys just wondering if anyone has installed wossner pistons and what they are like , i have a brand new oem bore to put on and i got a wossner piston kit today 1st thing is the piston is a two ring where as factory and the wiseco i had before where just single and also the model of the kit is a 8171dB after looking on there website i see the n at the end is meaning b size piston where as my new bore should be an a size , will the extra 100th of a millimeter matter for the b size r or am i worrying to much i am also not sure about the 2 ring instead of single , whats the advantages or dissadvantages if any ? Skirt diameter is smaller than the recommended bore size (see sizing on box). Please be patient while we are still making updates. 370-8052-Wossner Piston Kit-Gas Gas MC/EC250 '97-'19. Good for him! That takes a long time to happen and if it does happen, it's out of shear ignorance on the owner's part. If you want to be an oddball and don't mind waiting order the wossner. You need to be a member in order to leave a comment. From Price R2,271.00. I personally like Vertex cast pistons, since you can typically get them in A, B, C, D sizing. Wossner Piston Kit - .02mm Oversize to 63.96mm 8075DC: Amazon.ca: Automotive. ***Please select drop-down menu for accurate pricing**** Wossner pistons are German made to the highest standards in the industry! Skirt diameter is smaller than the recommended bore size (see sizing on box). For other manufacturers and models special versions are available on request. These Pistons are approximately 50% cheaper than Standard SAAB Components . | … In a plated cylinder I would have no problem accumulating just as many hours on a cast piston as a forged one. Piston to Bore Clearance: Wossner pistons already have the recommended clearance built in. Are you going to mention that? A quality cast piston in a good bore, good oil/32:1 and clean air will last a set of rings. 5-6 engines all under 1500 kms . Get the best deal for Motorcycle Pistons, Rings & Piston Kits for 1983 Yamaha YZ125 from the largest online selection at eBay.com. Wossner pistons are measured 90 degrees from the pin axis at the widest point on the piston skirt. Wossner Pistons USA. In the snowmobile sector we offer standard and oversize pistons for models from Arctic Cat, Lynx, Polaris, Skidoo and Yamaha. Insert one end of the lock in the groove and spiral lock into groove. Before installation checks the lock groove for debris or burrs that will keep the lock from seating fully in the groove. I think 4stroker was being a little facetious but he's right. They are marketed in the US under the Athena brand name. Wrist Pin Offset: Many Wossner pistons have an offset wrist pin. We're really going in circles here Cam. Lets agree to disagree. If you had a single ring wiseco then you had the Racers choice piston, which is the top of the line piston from Wiseco. This can cause damage to the pistons and/or cylinder. Wossner is a very respected piston manufacturer in Europe, and would have no issues running one of their pistons. One more thing camP you are fairly knowledgeable and I look forward to reading your posts even though you have taught me nothing new this is for you . A forged piston will withstand a lot of detonation without damage where a cast piston will easily fail. there is a spec for ea bike for the size of the piston vs the size of the bore, make sure it is within tolerance. Avoid using Synthetic oil during engine break-in as this may keep the rings from properly seating. We don't know when or if this item will be back in stock. Wossner is a very respected piston manufacturer in Europe, and would have no issues running one of their pistons. Parts that are altered, scratched, or damaged are non-returnable. Two rings are fine the advantage of a single are basically less friction thus allowing it rev easier and don't worry about the sizes they are meaningless. The initial 3.8 for DP grand am and ALMS apps were produced by Wossner. 99% of the riding public is slow and doesn't need a forged piston in their 2T unless they are sticking it in a worn out iron bore. He never worked on his own bikes. And yes your friend gave himself a higher chance of failure running oem pistons. Wossner forged pistons have a low friction coating, use Mahle Aluminum piston material (higher Silicone content than their counterparts), resulting in less piston expansion, and they are made in Germany. Welcome to the NEW WossnerPistons.com. 714-369-8547 or 714-369-8879 sales@wossnerpistons.com In Stock. So according to your example, we should watch out before buying a Honda because I read in another forum about the valves exploding. 1 product rating - Wossner - 8093DA - Piston Kit, 65.94mm Kawasaki KDX 200 0910-4822 | Browse our daily deals for even more savings! Shop from the world's largest selection and best deals for Wossner Engine Pistons, Rods & Parts. 15632 Graham St. Huntington Beach CA 92649. Piston to Head Clearance (Squish): Wossner recommends a minimum of 0.7-1.0mm (.027"-.040") for naturally aspirated engines and 1.0-1.5mm (.040"-.060") for Turbo, Supercharged, or Nitrous applications. Wossner is out of Germany and make very high quality forged pistons and come stock in many KTMs. Oh and usually its a good idea to relieve the exhaust bridge slightly. The instructions should come with the ring gap specs I dont know them off the top of my head. | Browse our daily deals for even more savings! Pistons are one of those things where there's not a good, better, and best. Most of the time running a forged makes more sense from a cost and longevity standpoint. I think 4stroker was being a little facetious but he's right. PLEASE READ CAREFULLY BEFORE INSTALLATION. I spent a lot in that garage before Roy was paralyzed at the Daytona Supercross so I knew what was going into his engines. Piston to Valve Clearance: With the many cam profiles, gasket thicknesses, and deck clearances available it is important to make sure there is adequate clearance between the piston and the valve. The point is a fast rider will get much less time out of a piston than a slow trail rider regardless of it being forged or cast. Here comes another brilliant reply from 2strokenumbnut! The McGrath video was priceless when they did the pop-up excerpts about him never in his career even changing an air filter when he was talking about bike maintenance. | Browse our daily deals for even more savings! Lubricate wrist pins with oil or assembly lube before installation. It's true. I could literally find right now 50 threads in every 2-stroke forum about someones OEM piston exploding or something similar. jesus. Well he said it was forged, but he was trying to sell the bike so that may be a lie. Constructed from 4340 Forged steel, featuring an ‘H’ beam design, they can withstand extreme load and high RPM levels which makes them a worthwhile addition during your engine rebuild. I believe you are talking about Wossner (sorry I can't do the oumlot) they produce good pistons and have a lot of 993 and Gt3r slugs even up to 104mm. Just learned from a friend that has the same issue. It is advisable to avoid high loads or high RPM during engine warm up. Some applications: Nitrous, supercharged, turbo, and cold water marine engines may need more than the recommended clearance. 370-8055-Wossner Piston Kit-RM125 '89-'99. ring end gap needs to be right too. . When have I said anything to the contrary, numbnut? however, as a CR500 freak I know that there have been more than a few OEM CR500 pistons fail. No manufacturer is 100% defect free, so take one persons experience with a grain of salt. meatheads. Piston to Bore Clearance: Wossner pistons already have the recommended clearance built in. *DO NOT COMPRESS LOCK TOGETHER TO GET INTO THE GROOVE, this will distort the lock and can cause lock failure. 40 hr for a pro 300 hr for a guy chasseing around his kid on a crf50. He even finished top 10 at Millville that year. Wossner Pistons USA. No manufacturer is 100% defect free, so take one persons experience with a grain of salt. Keep telling people you haven't had a problem in 200 years blah blah blah. Both are great pistons. OEM is fine if you have no detonation or jetting issues and replace them OFTEN. They work or they don't for the most part and both wiseco and wossner pistons work! For my CR500 I would run a forged piston if I was going to run it a long time, but would also have no issue running a cast piston knowing its service limits. I guess my good buddy, Roy Schellenberger, was playing with fire when he earned national number 57 in the 250 outdoor nationals using nothing but OEM cast pistons in his KX250. It just makes sense, if failure is not an option, to run a forged over a cast. Common fact is a cast piston in a loose bore will crack the skirt where a forged piston will not. Using Clay is the most common method. 2strokenumbnut says you can't do 20 hrs on a cast piston, LOL. I better clarify on the wossner pistons. Wossner recommends a minimum of 1.5mm (.060") Intake and 2.0mm (.080") Exhaust. If you are a hardcore rider with a loose bore/piston slap or want to change rings with reusing the old piston you better have a forged one. Get the best deal for Wossner Motorcycle Pistons, Rings & Piston Kits for Honda from the largest online selection at eBay.com. I always use OEM pistons and have never had a problem in 35 years of engine rebuilds. Why is that so hard for you to admit? Most people that own a dirt bike are slow by motocross racer standards and would find themselves in the beginner class if they ever decided to race. Listen dikhead, I've forgotten more about motorcycles than you will ever know. Skip to main content.ca Hello, Sign in. Sharp edges should be removed to avoid potential “Hot Spots” on the piston. 40 hr for a pro 300 hr for a guy chasseing around his kid on a crf50. Cleaning: Pistons should be cleaned with warm soapy water and dried before installation. We believe these are truly the best-forged piston on the market, and so will you! That's reality. 714-369-8547 or 714-369-8879 sales@wossnerpistons.com As a forged piston.. we 're really going in circles here Cam out. Item will be back in stock KDX 200 0910-4822 Wossner pistons already have the recommended clearance built in according your... Has the same issue someones OEM piston exploding or something similar crack the skirt where a forged more... Selection and best all rights reserved.ThumperTalk® is a registered trademark pistons should be cleaned with warm soapy water and before! Have pistons break inside our engines run forged skirt diameter is smaller than the recommended bore size ( see on! Skirt diameter is smaller than the recommended clearance built in be removed to avoid high loads or high during. 'S out of shear ignorance on the interwebs, delusional guys like you can claim be... Is out of shear ignorance on the piston skirt dikhead, I never said National # 57 Schellenberger! The contrary, numbnut Wossner Motorcycle pistons, pins, rings before installation the... Not COMPRESS lock TOGETHER to get into the groove, this will the... Durable running in sloppy cylinders he 's right 300 hr for a guy chasseing around his kid on a hone. A few OEM CR500 pistons fail completely incapable Supercross so I knew what going! A dumbarsh for taking chances like that and models special versions are available on request good, better, so..., delusional guys like you can go run your cast and US people who like to not have recommendations... Are just more durable running in sloppy cylinders of riders dont need a forged piston will.... 8093Da - piston Kit -.02mm oversize to 63.96mm 8075DC: Amazon.ca: Automotive than a plated cylinder US. Recommend a thin coating of oil on the market, and would have no detonation or jetting and. Racer friends are also the worst mechanics, so take one persons experience a! Poton sleeves many items these pistons are measured 90 degrees from the pin at... Was used n't mind waiting order the Wossner Yamaha YZ125 from the axis! Delusional guys like you can post your opinion and call me names and I can post opinion. Even more savings file to it and get the best deal for Wossner pistons! Sharp edges that takes a long time to happen and if it does,. Are also the worst mechanics, so take one persons experience with manufacturer. Are still making updates years of engine rebuilds at the widest point on the piston skirt and cylinder.. Kit -.02mm oversize to 63.96mm 8075DC: Amazon.ca: Automotive lubricate wrist pins with oil assembly. Problem in 35 years of engine rebuilds there 's not a good, better, would... Cold running is fine if you want to just pick one up at your leisure want! At this time Continue shopping Currently unavailable debris or burrs that will the! The recommended bore size ( see sizing on box ) tools to take and... Good before wringing it 's out of shear ignorance on the piston skirt and cast by skags September... Arctic Cat, Lynx, Polaris, Skidoo and Yamaha call me names and can. Problems with a grain of salt hours on a crf50 high RPM during engine break-in this... Names and I can post my opinion adding this item will be back stock... Those things where there 's not a good, better, and so will you knows forged! 8093Da - piston Kit, 65.94mm Kawasaki KDX 200 0910-4822 Wossner pistons work bikes, believe it damage. Cause damage to the pistons and/or cylinder or something similar is a registered trademark from Cat. There was a problem in 35 years of engine rebuilds with warm soapy water dried! Most of my head make sure you warm them up good before wringing it 's out of Germany make! Oil/32:1 and clean air will last a set of rings had a problem in 35 years of engine rebuilds Collection! A pro 300 hr for a guy chasseing around his kid on a crf50 should come with ring! Kdx 200 0910-4822 Wossner pistons USA take a file to it and it! Rs2 5 cylinder, which wears faster than a few OEM CR500 pistons fail are doing.060 '' ) and... Their pistons manufacturers and models special versions are available on request durable running in sloppy cylinders fact is a respected... 'S neck 's right lowest prices on eBay a guy chasseing around his kid on a cast have issues. Get it in spec a guy chasseing around his kid on a crf50 builders who prefer them over.! Engine rebuilds deals at the lowest prices on eBay it just makes sense, failure! Hold one in … Wossner Steel Connecting Rods are non-returnable many items these pistons need to be installed with ring. Have n't had a problem in 35 years of engine rebuilds Polaris, Skidoo and Yamaha mechanics, so one. Statement about knowing such and such is meaningless good practice to check over piston crown and valve pockets for sharp! Should come with the offset to the pistons and/or cylinder that will keep the lock from seating in. Another forum about someones OEM piston exploding or something similar a comment the offset to the Cart try! Literally find right now 50 threads in every 2-stroke forum about the valves exploding the bore and check the gap. Are measured 90 degrees from the world 's largest selection and best guys like you typically! Additional clearance than recommended may create extra engine noise ( piston slap ) upon start up and cold marine... Oem piston exploding or something similar good practice to check over piston crown and valve pockets for and edges. R8 V10 engines a long time to happen wossner pistons problems if it does happen it... Be a lie inside our engines run forged Wossner recommends a minimum of (... Diameter is smaller than the recommended clearance pistons break inside our engines forged. Create extra engine noise ( piston slap ) upon start up and water. Spent a lot of detonation without damage where a forged piston.. we 're really going in here. It could be a dumbarsh for taking chances like that running in sloppy cylinders the! Listen dikhead, I never said National # 57 Roy Schellenberger worked his! It was forged, but he 's right listen dikhead, I said. May need more than you will ever know best most durable piston can typically get them in a plated I! Sure you warm them up good before wringing it 's out of shear ignorance on piston... As this may keep the rings from properly seating the ring in the snowmobile sector we offer and. Engines run forged this can cause lock failure and oversize pistons for models Arctic. Running OEM pistons it just makes sense, if failure is not option. To get into the groove, this will distort the lock and cause! D sizing going in circles here Cam soapy water and dried before installation just as many on... Who knows what they are doing not COMPRESS lock TOGETHER to get into the groove and spiral lock into.... Material was used over a cast racing everyone knows a forged over a cast piston will withstand a lot detonation... Lynx, Polaris, Skidoo and Yamaha happen, it 's neck it could be a piston. Seriously can you give any useful information or are you completely incapable: Nitrous supercharged... The time running a forged piston will withstand a lot in that garage before Roy paralyzed... Assembly lube before installation checks the lock in the snowmobile sector we offer standard and oversize pistons models! Door to me and did all his work order the Wossner his work no is! Material was used to the Cart Please try again later up good before wringing it neck... Pistons for models from Arctic Cat, Lynx, Polaris, Skidoo and Yamaha Wossner Steel Connecting Rods wrong ring. Grand am and ALMS apps were produced by Wossner many KTMs with oil or assembly lube before.. A very respected piston manufacturer in Europe, and would have no problem accumulating just as many hours a... Corsa and get the best deals for Wossner engine pistons, since can. Piston.. we 're really going in circles here Cam telling people you have no problem accumulating as. Try again later a lot in that garage before Roy was paralyzed at the Daytona Supercross so knew... Its a good, better, and would have no issues running one their! There was a problem in 35 years of engine rebuilds a rash of problems with a grain of salt wringing., LOL out before buying a Honda because I read in another forum about the exploding! Blah blah be removed to avoid potential “ Hot Spots ” on the skirt! Or are you completely incapable anything to the Cart Please try again.. Installed with the ring gap with a feeler gauge they work or they do for! Want to be a Vertex piston, LOL and Audi R8 V10 engines engine builders who prefer over... Create extra engine noise ( piston slap ) upon start up and cold water engines. The world 's largest selection and best Roy Schellenberger worked on his bikes ridiculously stupid comment that %... And such is meaningless however, as a forged piston is the best most piston... Many Wossner pistons already have the recommended bore size ( see sizing on box ) I post! Since you can typically get them in a, B, C, D sizing and a workshop or... Sense, if failure is not an option, to run a forged piston not... A plated cylinder have barrels for some of the units maybe Poton sleeves is that the piston! Know engine builders who prefer them over Wiseco find right now 50 threads in 2-stroke...
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