Originally Posted by
av8tor1977
I think that you will find that besides being able to pull fuel into a carb that has been out of use for a long time or run dry on purpose, that you will also experience somewhat faster/easier starts, cold or hot. The primer system is an ingenious design, and contrary to popular belief, you can not flood the engine no matter how many times you pump the primer. It is impossible to flood the engine using the primer unless there is a fault in the carb itself.
AV8TOR
The primer is just a devise that purges the air out of the line to carb. If you watch how they work you will see the air trapped in the line as bubbles that return back to fuel tank. You will still need to choke the engine to help it start or prime the engine by giving a small shot of fuel in carb throat. If it starts & then quits, loosen the 4 screws and squirt some fuel in and around the diaphragm. Then re tighten the screws & try again. You can avoid all this....I will post how.