wrote:
Hi!

I have a Sears Snowblower that is a Sears Craftsman "3/20". I'm
not sure how old it is, but I found a picture of it here...

http://detroit.craigslist.org/tls/276437292.html

My problem with it is that it starts up fine, and it runs fine, up
until about 30 minutes into snowblowing. At this point, the engine
then dies out. I try to start it again, no luck. So, I prime it once
or twice, pull the rope, and it starts back up again. But as soon as
I let it go into some snow, it dies again.

Just wondering if anybody had any ideas. I *THINK* that it might
be a choke problem, but don't know for sure. I use it with the choke
3/4's of the way closed. If I flip the choke all the way to "Off",
the engine dies out. But if I leave it one notch above "Off", it
works fine...well, up until the 30 minute mark.


Thanks!

I had a similar thing happen with a lawnmower. Turned out the mixture
screw had vibrated out and it was leaned way out. I had to run it with
full choke and it had no power. Adjusted the mixture and it was fine again.