Question about Tecumseh Lawn Boy Push Mowers Insight Silver Powered Series - Sens - A - Speed Walk Behind Mower - 10685

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I own the 10685, mowed 6 times this year and on the 7th out of nowhere it developed a problem. Primed as usual, starts, runs about 30 seconds, quits. If I catch it in time I can hit the primer again and it will continue to run, again only for a few seconds. Pulled the bowl, blew out the 3 holes in the bowl nut, reassembled the bowl, same thing. Replaced the air filter, and plug, same thing. pulled the carb, blew it out, checked air flow, and gas feed lines for any gum, installed new needle (blew the needle seat out with the air hose,could not find it) seat and spring. Checked the carb for flow and cut off, all is working well, reinstalled the bowl, no change. The carb was clean with the exception of a little gummy strings. The gas is new. If I hold the governor open a little to a higher RPM it will run longer but will still starve out for gas. I'm wondering if it could be the air feed coming from the engine that supplies the carb with the pressure. I cant test it for air flow if the engine isn't running. That seems to be the next step to eliminate. Am I barking up the rite tree? what could it be/

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Just a suggestion O.K?
Carefully check the small fuel lines. To and from the bulb. Make sure the bulb fills with gas.( at least two thirds full. ) There is a small fuel filter on the end of a small fuel line in the tank. A small hook of stiff wire will dig that out. Good luck !!!!

Posted on May 14, 2010

  • Wayne Tolonen May 14, 2010

    Hi This is pipecleaner saying I goofed up. The suggestion I gave would have been for a weed eater motor.I apologize for any inconvenience.


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I own this same one. Mine stalls out after a few secs if I don't have the mulch plug all the way engaged. It's worth checking to make sure before messing around with bigger stuff.

Posted on May 26, 2010


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