Outdoor Power Equipment (Lawn Mowers, Snow Blowers, Chain Saws and more) Discussions

While test running my Craftsman model #88115 11.5 hp machine, I thought I would try to shut it down by closing the fuel shut-off valve.  I thought this would use up gas between the tank and the carb.  The machine continued to run.  So I left well enough alone and shut it down by slowly retarding the throttle.  Is there a fail-safe built into the fuel on-off switch?

Snowbound,
Not that I've ever seen on small yard equipment. It's usually direct from the shutoff to the carb with possibly a filter in the line. Shutting off the the valve will stop an engine given a bit of time to drain the bowl and whatever dribbles down from the line.
I don't think all of the gas will dribble out either. Like picking up water in a glass with a straw. If you put the straw in then put your finger over the top and pull the straw out the straw will hold the water back. The shutoff valve is like your finger.
trouts2

I know I wasn't asked, but I'll wade in anyway.   When the throttle switch is move all the way back to the off position, it should be sufficient to stop the engine.   Also, there's a "key" that disengages the spark when it's removed.  turning off the fuel valve and allowing the engine to run out of fuel,  is a good idea at the end of the season.  It may take one to five minutes at idle speed for the carb and fuel line to completely drain. 

Thanks to both of you.