I have a 1998 Cajun fish and ski with a 200 horse Johnson outboard the motor will start right up with the air muffs and run until I kill it take it to the lake and I’ll run great as long as you don’t stop the engine we come back to the dock and stop the engine and it will not start it will turn over but will not start up it’s got spark on all six plugs what is it hey sit for a bit then it will start right up again any Advice is greatly appreciated