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115 V4 Yamaha oil injection problem. Also no full power and motor dies out.

rubratz

New member
Hello. There is a problem with the oil area. If I leave motor on tilt over night with oil tank on side of motor, oil will run through oil lines into engine.
Also when motor is running, I can't get full power or even half power. Every time I use the throttle it will splutter and die out but if I idle throttle or just over idle, it will run good at that speed only.
Please help.
 
Remove and clean main jets on side of bottom of carb bowl. My oil leaks too. Sounds dumb, but I leave my motor in operating position except when trailering. Haven't found a fit for that, so I just don't leave the motor tilted. If cleaning main jet doesn't fix the problem, do a compression check and look for any cylinder below about 120 psi.
 
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