Very difficult without proper removal and installation tools provided by Briggs and Stratton. The old one can be removed with needle nosed pliers, by gripping as much of the bulb as possible and rocking it back and forth until it pops free. If the bulb tears out, be sure to remove the snap ring holding the base. Be more careful when installing the new one, as it can be torn easily. Put the new bulb in, and snap in the new retaining ring using two small flathead screwdrivers.
probably needs a diaphragm
the bolt in bottom center of carburetor bowl has holes in it that are stopped up like mine was.
The fuel filter is clogged and restricting the flow of fuel to the carburetor.
If what you mean by not priming is the red primer button not priming, replace it. They are easy to find from a mower shop and hopefully doesn't costs alot. If what you mean is it doesn't primes itself after starting, replace the diaphragm pump located at the bottom of the carby and at the top of the fuel tank
loose line,[sucking air] hole in primer button, no gas,
Put fresh gas and stabilizer in it, and prime it with the red prime button. I just bought one from a guy who couldn't start it. Now that I know it will start, I will change the oil and maybe put a new spark plug in it.
it is losing its prime... i have the same problem right now and i have cleaned the carburetor, changed the gas and spark plug and changed the air filter. The only thing that i can think of is that there is something wrong with the priming bulb or the gas cap is hindering the air flow... still trying to repair....
The primer bulb probably needs to be replaced unless either one of the fuel hoses leading in and out of the primer bulb bracket is clogged. Be sure you mark how each fuel line goes before you remove the bulb so you can replace them correctly. Hmmm. Thinking more about it: If the primer worked properly before disassembly, chances are you crossed up the fuel lines when re-installing. Try switching them.
The primer bulb probably needs to be replaced unless either one of the fuel hoses leading in and out of the primer bulb bracket is clogged. Be sure you mark how each fuel line goes before you remove the bulb so you can replace them correctly. Hmmm. Thinking more about it: If the primer worked properly before disassembly, chances are you crossed up the fuel lines when re-installing. Try switching them.
prime engines only when; THE ENGINE IS OFF STARTING RUNNING ALL OF THE ABOVE
The engine will stall and not run. No damage will be done. You will need to drain the fuel tank, replace the fuel filter, blow out the fuel lines, and prime the engine to get it started again.
You do not have to prime it. It is self priming.