Had the same problem with my generator.( Tecumseh Engine) When the unit got
warm The intake valve would stick open. I took it out put in drill and used
emery paper took off one half thousands and ran fine after that. It still
starts hard though FYI I will not buy any more Tecumseh products. Everyone
Iv owned I had problems with . I just had a 5 year old engine blow up and
put the rod out the back of the engine. Upon examination I found no reason
this should have happened.The cylinder walls and rod and crankshaft showed
no signs of overheating or damage and the oil was checked prior to use. And
yes I'm timely about oil changes
You MUST drain your fuel after the season ends.
Also there is a summer and winter formulation Iv been told. I dump all my
spare gas in my truck every two months and refill all my cans with fresh gas
I also prefer the old fashion glass sediment bowl to monitor the fuel
condition and water in your fuel.
I just bought a new rider and that is the first thing that will get changed
"Robert11" wrote in message
. ..
Hello:

Have a practically brand new Ariens snow blower with a Tecumseh engine.
Used just a few times last year; worked perfectly.
Having a bit of trouble this year. First time used this year, as we
haven't had any snow to talk about.

Starts right up, runs just fine for 5 to perhaps 8 minutes, and then
stops.
Easy to start again, then same thing: 5-8 minutes, and stops.
And again.

Not clogged.
New gas.

Doubt that it needs a new plug, as it's been used probably no more than
half a dozen times since bought.
Think it can be gummed up already ?

Anyway was wondering if this "runs and then stops" symptom, for all you
engine experts out there, might suggest what
is wrong ?

Thanks,
Bob