Hey all i just tore down my topend to put some new pistons in and the cylinders they are still fine as i just honed them .
My question is....can i just take the old pistons to yamaha and get the exact same size pistons and rings and run them in my cylinders or.....? Im not to sure what i have to do as i dont want to get the wrong size rings and pistons. Just dont want yamaha to say ..."oh you need this done and that done" when really i dont, i was told when i bought it, it was 40 over, but the pistons look stock so i dont know .
Here is some pics of the left piston...just caught it in time YIKES!!!
There are #s inside the pistons if ya want to see if that helps. ?