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bighoss

stock piston size

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what is the stock piston size on a 86 lt250r the guy i got it from put a 70.55 piston in it so how much over is that

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so what is the diff between them

Not sure on that !:unsure: I do know 85-86 motors are different than the 87-92 when they went to the powervalve motors (exhaust valve ) i built a 88 that I have posted on my page so I had to learn alittle bit about it !

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i just found out that the 85 and 86 are the same other than the carb and the seat and stickers but every thing else is the same

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lol i did found out on wiki that it has a 70 mm stock bore and the guy i got it from put a 70.55mm piston so what did he go over stock 10 or 20 over cant fig it out

Edited by bighoss

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ok so pertty much he just made it a true 250 then and it still got room bigger if and when it needs it i should get a few years out of it before i have to do the top end agen or should i get longer i always run my 2 strokes rich

Edited by bighoss

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