1999 Yamaha 90 - 2 stroke 3cyl

[PBJ]

Originally Posted by boben1968

Make sure you check the swash plate. If any wear I would replace. I recomend leaving the thermostat in the motor to maintain proper engine temp..

I was told by Jerry at Jerry's Marine to NEVER run an engine without the thermostat for an extended period of time. I think it has something to do with the cylinders being too cold compared to the piston and causing excess wear.