Charles in Aus.
Well-known Member
This has happened to a few small two stroke engines I have ; a Homelight leaf blower and a Ryobi trimmer , when pushing the primer bulb down before starting the engine it sticks and won't come up again after the first push . A vacuum is holding it down and no fuel is pumped into the carb .
After some minutes it will rise again but has no fuel in it and will still not pump to the carb . The fuel lines are clear and not kinked and the fuel filter at the ends of the pickup lines are clear as well. I have even removed the filter to prove this .
If I loosen the flange holding the bulb down then air will enter and the bulb will rise but again no fuel is pumped .
Any ideas please on just what part of the carb is causing this ? ,
After some minutes it will rise again but has no fuel in it and will still not pump to the carb . The fuel lines are clear and not kinked and the fuel filter at the ends of the pickup lines are clear as well. I have even removed the filter to prove this .
If I loosen the flange holding the bulb down then air will enter and the bulb will rise but again no fuel is pumped .
Any ideas please on just what part of the carb is causing this ? ,