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Old 05-31-2020, 06:08 PM
Tripaddle Tripaddle is offline
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Join Date: Sep 2015
Location: Lancaster, VA
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Engine rpm varies after longer run

I’ve owned the boat for 4 years now. Minimal maintenance (oil, plugs once, impeller, and MMO in gas), and rerouted the flow as described at the exhaust manifold. Still has points and cranks after just a few rpms. Doesn’t like the choke and raw water cooled. The temperature gauge really never moves but we normally just get out of marina and start sailing. In the beginning I installed a new fuel tank, all hoses, fuel pump, water separator, and cleaned carb, also wrapped exhaust. Oil pressure always 30-40. Everything adjusted to spec and no tweaking done. But, always a but, after running 2 hours it seems like the motor rpms will change. Not really trying to cut off or like a loss of power but the rpms will drop and come back. Feels scary and we slow down. Our max is probably 1500 rpm. Maybe the coil? I’ve never touched the points. Am I being stubborn not going electronic? I’m thinking of adding the sender unit for temperature when I place an order so I have it when I go to the boat.
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David
1976 Cal 2-27
Lancaster, VA
Charlotte, NC
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