rm 125 oversized piston

[rmrider45]

:ride: :ride: :ride: hi i bought a new cylinder for my 2003 rm 125 . i had it measured today at my local shop. it measures to 55.07

is this the piston i need thx

http://cgi.ebay.com/ebaymotors/Suzu...0075678QQptZMotorcyclesQ5fPartsQ5fAccessories

 

[rmrider45]

anyone?

 

[julien_d]

You have not provided enough information for anyone to answer. Assuming you bought a NEW cylinder for your bike, then no that is not the piston you need.

According to what I can find with a quick search, the stock bore for that machine should be 54.0mm. So at 55.07mm you'd be looking at .40 over, in which case it WOULD be the correct piston and your cylinder would obviously NOT be "new". Was the cylinder previously sleeved? Bored and re-plated?

/me grumbles loudly.

J.

 

[jsantapau]

never mind my brain fart

 

[rmrider45]

You have not provided enough information for anyone to answer. Assuming you bought a NEW cylinder for your bike, then no that is not the piston you need.

According to what I can find with a quick search, the stock bore for that machine should be 54.0mm. So at 55.07mm you'd be looking at .40 over, in which case it WOULD be the correct piston and your cylinder would obviously NOT be "new". Was the cylinder previously sleeved? Bored and re-plated?

/me grumbles loudly.

J.

yes it was bored and replated. it was new to me(used) just wondering if that was the correct piston

and if it is bored .40 over what cc does the bike become? a 125 to a ?

 

[rmrider45]

yes it was bored and replated. it was new to me(used) just wondering if that was the correct piston

and if it is bored .40 over what cc does the bike become? a 125 to a ?