While you wait for answers, we may have found some information which could help you.
Click here for Water Heating Cooledhow fix yamaha 40 running rough ?
fuel problems 1991 yamaha vxr waverunner?
1999 yamaha 1200 suv waverunner?
75 HP Yamaha Tilt trim?
1997 Yamaha Wave Venture difficult to start?
My yamaha 20hp 2 stroke engine will not run under load?