Take a look at this pic:
It's not a sled, it's a 2 stroke 4 wheeler, but why not ask the experts
It's not even mine...but it's on another forum and we're trying to figure out the cause of this. Some think it's lack of lubrication (oil pump not being adjusted right) but I think it might be lean. I can't say for sure though because I've never had the chance to see a piston that seized from lack of lubrication and don't know exactly what that looks like. But anyways there's no wash marks on the piston crown, and it took out the exhaust side of the piston. It looks almost exactly like my viper piston did when it burned down, just not as far gone. What do you guys think?
It's not a sled, it's a 2 stroke 4 wheeler, but why not ask the experts
It's not even mine...but it's on another forum and we're trying to figure out the cause of this. Some think it's lack of lubrication (oil pump not being adjusted right) but I think it might be lean. I can't say for sure though because I've never had the chance to see a piston that seized from lack of lubrication and don't know exactly what that looks like. But anyways there's no wash marks on the piston crown, and it took out the exhaust side of the piston. It looks almost exactly like my viper piston did when it burned down, just not as far gone. What do you guys think?
extreme4max4rules
New member
thats a lean burn down gone away on the exhaust side of the piston now if u were running dial a jet would not have that problem. allso would be checking oil pump settings Al
daman
New member
yup lean burn.