OK here goes. Boat hasnt been on Lake in a few years but I have started it every year with muffs. Problem was it would bog down and pickup speed back and forth around 4000 rpms. At lower speeds ran great.
I decided to try and fix this year. I replaced the power pack as it was only sparking...
I have a 1993 Sea Nymph with a 90HP Evinrude outboard. The boat runs good at low to medium RPMs but when you get up to about 4500 RPM or above it boggs down and then back to speed then boggs down and back up again. It continues to do this. Also after everytime you shut the engine off you have...
