1986 Evinrude 140.
Been fighting a bogging problem for a long time. Carbs are spotless (been removed and cleaned numerous times), carb kits installed, carb side plates checked, new fuel pump, new fuel lines and clamps.
Replaced the stock intermediate jets (air bleeds) with smaller ones and this helped, but did not eliminate the bog.
I did discover that the bog was almost entirely gone if I pumped up the fuel bulb and immediately took off. Once I returned to idle or stopped the engine for any period of time, the bog would return until I pumped up the bulb again. I assume that I've either got a air leak in the fuel line or a bad bulb. I guess I'll go get another bulb and recheck all the clamps for the umpteenth time and see if that changes anything.
Anybody got any other thoughts about what would cause me to lose the prime? I assume my problem must be between the bulb and the carbs for me to lose the prime.....correct?
Thanks all.
Been fighting a bogging problem for a long time. Carbs are spotless (been removed and cleaned numerous times), carb kits installed, carb side plates checked, new fuel pump, new fuel lines and clamps.
Replaced the stock intermediate jets (air bleeds) with smaller ones and this helped, but did not eliminate the bog.
I did discover that the bog was almost entirely gone if I pumped up the fuel bulb and immediately took off. Once I returned to idle or stopped the engine for any period of time, the bog would return until I pumped up the bulb again. I assume that I've either got a air leak in the fuel line or a bad bulb. I guess I'll go get another bulb and recheck all the clamps for the umpteenth time and see if that changes anything.
Anybody got any other thoughts about what would cause me to lose the prime? I assume my problem must be between the bulb and the carbs for me to lose the prime.....correct?
Thanks all.