Lets hope the OP tells us what he found. Either could be a
cause of this problem. Since he tried a splash of gas, I'm
doubting fuel problems.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Eric in North TX" wrote in message
...

That points to an electrical problem, not a fuel problem.
To the OP: the
problem is almost certainly in the electronic ignition
module. Replace that,
and the problem will go away.

I can only offer that the crap moves around, & will settle
once the 15
minutes has passed. Mine did exactly what the OP describes,
sometimes
it would run and mow 15 - 30 minutes, sometimes it wouldn't
make it
out of the garage. My final diagnostic tool was a spare tank
salvaged
from a long dead mower. I hooked it up in the console area
and filled
it with gas. The mower came to life instantly & mowed for a
solid
hour, at which point I took it to the shop and pulled the
fender
assembly and removed the tank. An amazing amount of crap
came out. I
used diesel as a solvent, & followed up with compressed air,
other
methods would likely work as well