I have a Toro 5 1/2 horsepower 4 stroke mulching "Super Re-Cycler" lawn
mower. I have a current problem where the machine will start and run fine
for about half an hour, then it stalls, sounding as if it has run out of
gas. I then prime and re-start, it starts running strong for about fifteen
seconds and stops again. I can keep the engine running by pumping the
primer while running, but, as soon as I stop priming it stops again.
I will be taking it apart today to have a look at it. If anyone has any
suggestions on what to look for, that would be great.
It really seems like it is starving for gas, loosing it's prime somehow.
Could it be something as simple as a blocked fuel line?
There is no gas leaking anywhere. I'm pretty sure the plug is okay. and
filter is okay.
I seem to recall that I replaced a cracked filler cap a few years ago when
I had similar symptoms.