Im sure one of you has the answer to this.Was out on Brothers boat saltwater fishing and his motor was running fine until you went over 4000 rpms.Then after about 30 secs it was coughing like it wasnt getting the proper fuel.every time I squeezed the ball and forced gas into the carb it would run great.Went back to the house after spending all day working on it and still the same problem.
Heres what we did:changed the water seperator/the motors fuel filter/new fuel lines/new ball/made sure the gas tanks vent tube was clear/change the vent anti siphon/pulled the pick up tube and made sure that was clean/changed the valve on the gas tank where the pickup tube connects.Took the boat out and after a minute running at 5200 rpms the motor acted up again.Well since Im no mechanic and felt bad for him after I made him spend all the money on replacing everything I hooked up a seperate gas tank(Duh should have done that first)
and ran the boat and still bogging at anything above 4000rpms.So I am convinced its got to be the motor right?If anybody has any ideas I would appreciate it.
Thanks in advance Mike