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- - 1987 trx250x (https://atvconnection.com/forums/honda/327350-1987-trx250x.html)

crazed45

05-22-2010 08:16 PM

1987 trx250x

Does any one know, what size a stock piston is from a 1987 trx250x? I dont have a manual yet and still need to rip it out, but it does say "HCO" and "IN" on top of it, not sure if that means anything. Can someone help me out so i can get it ordered?:huh:lol

budedm

05-24-2010 06:54 AM

74mm

smokzweed

05-25-2010 08:26 PM

piston size

book says 73.965-73.985 (2.9118-2.9128

crazed45

06-11-2010 10:40 PM

Thanks im rebilding my 250x from the fram up so i will have some more questions for ya at some point, thanks

Kroy	06-17-2010 09:16 PM

The side it says in on you put that towards the intake side (rear) of the engine.

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