do the 86-87 honda 200x"s have a diffrent stock bore size then the 83-85 models???

 

Yes. You will need to get on for 83-85 model.

 

ok...i though they were diffrent cuz i kno the 86-87 had more power.......i was just hopin on some off chance they might be the same cuz i cant find any 12:1 pistons for the 85 i can only find them for 86-87.....any idea were i can find one ..like is there a website or somthing????

 

Here Ok you will need to zoom in so you can read what is on the page. You want the piston for the atc200 12:1 compression. The piston number should be 4289M06500

This it what the model will read. It will be on page 2. It is right under ATC200 E, X, M, Big Red ATC200S TRX 10.25:1 Compression Cyl. sleeving req. for oversizes.



This one is the one you want.
ATC200
TRX
12:1 Compression
Race part only.
Cyl. sleeving req. for oversizes.
1981-85
1981-86
1981-85

 

ok thx for all the help......im lookin for the piston cuz i kno a place locally were i can probably get the cam