Thanks everyone for your input. The shop has said that if they shave the block that the pistons could hit the top of the head and they are not...
2008 Yamaha 150hp I had it into a Yamaha dealership and they measured the warp after taking the power head apart. I have compression in one...
I have a 2008 150 HP Yamaha 4 stroke out Board that has overheated as a result of the impeller malfunctioning. The head and block have a slight...