I have a 2000 txt 250 thats ready for a new piston. I've had the bore measured at 72.55. Can anyone recomend what size piston would suit that bore best?

Thanks

I have a 2000 txt 250 thats ready for a new piston. I've had the bore measured at 72.55. Can anyone recomend what size piston would suit that bore best?

Thanks

Since the accuracy of the bore diameter measurement is dependent on the technical skill of the person doing the work, a better way is to check the top of the piston or better yet, the base gasket surface of the cylinder for a letter marking. It will be "A", "B" etc.

Usually on an 11 year old engine with the original plating, you can go to the next "oversize" so if you have a "B" cylinder, you can use a "C" piston.

Jon

Thanks jon. The piston i took out has a 'B' on the top, so i will order a 'C' in that case then.

Thanks