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Runs fine at idle!No power to load on trailer! Runs good at fast idle. Go for plane,goes fast slows way down wont get on plane.Carbs rebuilt about 4 yrs ago.Gas coming out bottom looks good, water separator changed,bulb seems good, fuel filter on eng O/k. How do I check for fuel pump pressure,and points.
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carbs rebuilt 4 yrs ago.....if the older models sit for any length,longer than 2-3 months they need to be broken down and cleaned. as for pumps, take them off and my tell tale test is to blow thru them, one way will have flow one way should be stopped dead. if you have blowby, theyre bad. you can also take apart the pumps and inspect for any tears, but not always visible to the eye.
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