i have a lawn mower thats not working right, when it starts, the engine RPM is erratic, the firing is uneven, inconsistant, its smoking more than it should, and the spark plugs are fouling pretty quickly.. the signs that this thing is running WAY too rich
the engine is a briggs and stratton engine, 300 series, 148cc, 4.5hp manufactured in april of '12
i took the carburetor off to make sure there was no clogging in the carbs, but i noticed a bit of a tear in the side of the diaphram.. i was wondering if this could be the cause of the rich mixture, or if i should be looking for another cause? there doesnt seem to be any means to manually adjust the air/fuel ratio.. meanwhile, im ordering another diaphram for it online
Yuou found the most likely culprit, so get it fixed. What are you waiting on? Grass is only going to get taller, the longer you wait.
__________________ Ren: Now listen, Cadet. I've got a job for you. See this button? Ren: Don't touch it! It's the History Eraser button, you fool! Stimpy: So what'll happen? Ren: That's just it. We don't know. Maybe something bad, maybe something good. I guess we'll never know, 'cause you're going to guard it. You won't touch it, will you?