10/1/2018 3:10 PM
Hello Dan:
We have a GM3100 that was doing close to the same thing a couple years ago. We would sent it out and it would cut out and shut off around the 14th or 15th hole. Let it sit for a 10-15 minutes or so, the it would fire back up. Sometimes it would make it to the shop, but most of the time it would only drive 30 yards or so, similar to yours.
This was an older unit and it turned out that our problem was debris in the fuel tank. I suspect it would cut out and shut off at almost the exact point every time was due to the level of fuel dropping in the tank to a point where the debris would "slosh around" and clog the fuel line. Sometimes, I suspect it would only partially clog the line which is why it would fire up after a few minutes (the fuel would trickle through the fuel line to the filter) but still shut back off (not enough fuel getting through the fuel line to sustain a continuous run).
Anyway, thoroughly cleaning and flushing the fuel tank did the trick for us. Hasn't shown this problem for two years now. i know it's probably a long shot that this is the same problem as your GM3150, but your description seemed so similar that i wanted at least to reply.
Steve