Carburetor Lean Pop, Popping at idle is generally a lean C3


Carburetor Lean Pop, Popping at idle is generally a lean C3 General - Lean pop - I took my car to our the shop I work at the other day and my boss drove it. The chamber then burns as much as it can, but then when the gasses are pushed into Customer: 40hp 2stroke mercury has a lean pop at idle after running. This lean condition spoke of can be from dirty jets in a carb, dirty fuel injector, incorrect TPS set too lean, but the one thing that I see most is a bad exhaust gasket where the pipe mounts to the head. The most common reason for exhaust popping on deceleration is a lean condition. Lean Lean and rich running conditions describe situations in which there is either too much fuel or too much air getting to the engine. More of a gurglling. Popping noises from a carburetor indicate a form of backfire. Power seems to be way off, won't accelerate very well, at all. You can Is it popping through the exhaust or carb? If exhaust its running to lean and through the carb to much advance. A lean-running carburetor can Neither of my motors pop, even with their straight thru "mufflers".

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