I have a 1988 welcraft CC fisherman with a 1988 johnson motor. Just bought this boat. This boat has new power head never in water but has sat for 5 years with owner starting maybe once a month. had new water pump and carbs rebuilt and new gas. took it out and when throtle up it starts to go then it sounds like a spun prop at about 4000rpm. i bought a new prop and does same thing. sounds like it goes into netural before leveling out the boat. can the lower unit cause this???
thanks
thanks