GP1200R new piston destroyed
I have noticed quite a few posts on gp1200r eating pistons. What causes this. I have a ski with a little over 100 hours on it and it sounded like some piston slap in the motor. So I pulled it down and checked the cylinders which seemed ok but the pistons were worn. I put in three new pistons and first time out the center piston is destroyed, hole burned through the exhaust side and top of piston next to exhaust port looks burned. I used all new gaskets and the other two pistons look ok. I guess I will have to get the center cylinder sleeved. Should I do them all or can some tell me what usually causes this.