> I am sure that the Yamaha dealer can order you a "1st over"
> piston right from Yamaha.
> Probably $35 for piston and rings... and $30 to get it bored.
> But before you order the piston... let the "bore guy" look at
> the cylinder and tell you if it will 'clean up'.
I asked the mechanic there, and he said no, it wouldn't clean up, as you say, but I wonder if he was assuming I used the same size pistion, as he said he could only bore 1/2 mm....
You know anything about this? Could I just take it to a machine shop, and say, make is smooth again, and then fit a piston to it? or are there standard sizes to bore up to, and then get a standard pistion to match the new bore size?