I don't know what has convinced you it is flooding. If it is hunting (surging up and down in speed by cycling the governor between its stops), that behavior means lean mixture. If it were rich it would slow down and emit black exhaust smoke with a characteristic smell of singed petrol. Engine speed might still vary, but not by slamming the governor between fully open and fully closed throttle. Instead it would be what is called 'rolling', varying in speed smoothly like a car with the hand-choke pulled out too far. Petrol running out the carburetor only means flooding if it is running over the top of the float bowl out of the overflow vent, or running out of the main jet into the venturi. A leak from the bottom of the float bowl only means a leaky float bowl.

Last edited by grumpy; 24/03/09 06:57 AM.