1993 Johnson 150 HP Jerks and won't get on plane.
Tonight coming back from fishing I was running 50 mph and almost back when my engine began to lost power and it began to jerk on me.
I stop and it runs great at ideal and if I stay under 3mph its ok. When I try to get back on plane the engine will jerk like something is misfiring. The man I purchase this boat from gave me extra power packs for the engine. Is this the problem? and if it is, how can I tell which one to replace?