stock piston size

[bighoss]

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

[oxidized_black]

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

[bighoss]

so did he go over any or did he keep it the same sorry to act dumb

[oxidized_black]

?? is yours the rf or rg ??

[bighoss]

iam not sure i do i fig that out

[oxidized_black]

with the vin # check here ... https://www.suzuki-gb.co.uk/motorcycles/about/extras/vin-checker/

i usually use motoverse but it is down right now ...

[bighoss]

it sayes it cant find it

[quadnut20]

?? is yours the rf or rg ??

85 is rf 86 is rg

[bighoss]

so what is the diff between them

[quadnut20]

so what is the diff between them

Not sure on that ! 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 !

[bighoss]

i called suzuki and was asking and they said its a r but they did not know

[bighoss]

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

[quadnut20]

i called suzuki and was asking and they said its a r but they did not know

LOL its probably older than the clowns behind the counter

Heres were I bought a lot of parts from for my 88

Alpha Sports - Suzuki ATV Parts Catalog

[bighoss]

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 June 26, 2013 by bighoss

[oxidized_black]

0.55 mm / 25.4 = 0.021 inch ... 21.6535433 thousands of an inch

[bighoss]

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 June 26, 2013 by bighoss

[bighoss]

so what is the the differance in the quadracer and the 250rg and the rf

[oxidized_black]

F = 1985, G = 1986

the diff between the years was in the porting of the head ...

[bighoss]

ok was not sure