200-300 rpm surge
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200-300 rpm surge
I have a 1991 bravo BBC thunderbolt iv ignition. Two trips ago the boat had a hard time getting on plain had a big miss under load I put a tune up and fuel filter on it. It is better but still has a slight miss/hesitation under load and a 200-300 rpm surge when at a cruse. Any thoughts I know the ignition pickup and module could cause this prob buy not putting the right timing for the heavy load and could cause the rpm surge under cruse. thanx
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Providing you changed the plugs, cap, rotor and wires during your tune-up, I would next go to the carb. Maybe the module, but my bet is the carb. Same exact thing happened on one of the motors in my Sea Ray.