Motor pistons

[Bad Ass Honda 250r]

will the cr 250 piston fit in the honda trx 250r, i noticed that on the side of my wiesco box is reads, trx/cr 250 piston kit or someting like that...

[Bad Ass Honda 250r]

no one knows if the cr piston fits on teh 250r?

[trx]

im wondering myself

i got a cr250 piston

and curtis sparks told me u have to use a cr head and gasket and the piston will fit in a 86 bottom only with SOME KILLER PORTING AND POLSHING THAT SHOULD BE A FAST MOTOR AND LOTS OF COMPRESSION

but has anyone done this and been succesful

[Bad Ass Honda 250r]

well the only difference between the 87 and 86 rods is the width at the joiint at the top, and the length of the rod...

Do you mean the whole cylinder or do you just have to have the head? if you have to have the whole cylinder which years will fit on the 250r?

[fourtrax250r]

the CR gasket is just thinner so you get more compression. you can just take a layer off or jsut run one layer of the trx gasket to do the same thing.

[CR480R]

Originally Posted by Bad Ass Honda 250r

will the cr 250 piston fit in the honda trx 250r, i noticed that on the side of my wiesco box is reads, trx/cr 250 piston kit or someting like that...

the '84-'85 CR piston is the same as '85-'86 250R..

[EAT_A_450]

Originally Posted by CR480R

the '84-'85 CR piston is the same as '85-'86 250R..

cr480 is correct.

[trx]

u can use the trx cylinder but u have to have the cr head

becouse the cr piston is a flat head and it wont match the angle of the trx head


i have 85 style cr wiesco piston sitting here at my shop