do I have another bore??????

[yellowbeard]

Hey guys pulled my top end apart, the piston is gualed, it has a number stamped in the middle of it (76.44 mm) does it have another bore left? and what would it be. Or do I need to resleeve? thanks Joe
Oh, yea It's a 84 honda 250r.

[Bryan Raffa]

wow I think you got a big bore there.. stock was 70mm and wiesco makes them up to 72mm 2mm over.. post a pic of the piston cylinder and head..

[Bryan Raffa]

does it look like this?

[yellowbeard]

yes and no, the motor is all black, but the head looks the same. is there any numbers on jug or head to look for? got the serial no. and ask honda shop. they said it was a 84 250r. do they make different jugs and heads, to acount for the bigger bore size? thanks Joe

[Bryan Raffa]

well the bottom end on that one is a diffrent year, if the top end looks like that one You got a 300R.. if 72mm is the biggest piston wisco make for that and the 350 oddssey stock bore is 80mm ,, Im thinking you in the middle of the road with a 300r kit..