I have 1986 115 hp yamaha oil injection.
It runs fine but when I tilt the motor up injection oil from the tank reservoir attached to the motor leaks oil into only ONE TOP carb. The oil draned the whole tank. IT RUNS OUT THE CARB INTO THE COVER
This happens with motor off and parked. Again if motor left level it doesnt happen
Anyone know what causes that. The yamaha mechanics didnt know and I already spent 300 bucks at Hastings marine for smoke from the engine and now found this. Is there a check valve somewhere ?