Hi everyone, I’m new to the forum and already love all the info I’m reading from everyone. I hope I can add to the knowledge in the future..
my question however is I just purchased a 1991 Yamaha 40 h.p jet motor and just took it out for the first time today. It seemed to run fairly well except for one thing.. it would idle fine and it ran well at full throttle but everywhere in between it was hesitating or cutting out a little. The shop I bought it from said they had just changed plugs and wires but not sure about anything other then that. Overall it ran pretty good except for the cutting out at half throttle when holding it at mid-speed. Anyone have any suggestions what may cause this? Maybe just fuel filter, fuel pump? I’d think if it was the pump it’d cut out at full throttle not mid throttle. Thanks for any help you can give!
my question however is I just purchased a 1991 Yamaha 40 h.p jet motor and just took it out for the first time today. It seemed to run fairly well except for one thing.. it would idle fine and it ran well at full throttle but everywhere in between it was hesitating or cutting out a little. The shop I bought it from said they had just changed plugs and wires but not sure about anything other then that. Overall it ran pretty good except for the cutting out at half throttle when holding it at mid-speed. Anyone have any suggestions what may cause this? Maybe just fuel filter, fuel pump? I’d think if it was the pump it’d cut out at full throttle not mid throttle. Thanks for any help you can give!
