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

3 Answers

I would push the prime button 3 or 4 times it starts then quiet

I have a lawnboy selfpropelled 4 cycle, 5.5hp, silver series. I prime it , it starts then dies, wont stay running

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  • Anonymous Apr 23, 2009

    same as above. i prime the engine with the bulb and it will start but only for a few seconds and then dies.

  • Anonymous May 03, 2009

    same problem. But I changed the oil, cleaned the carb, changed the oil filter and now the darn thing won"t even start.

  • Polo Vazquez May 05, 2009

    I have the same problem too, My mower startsand after 2 to 3 min it dies.I can get it to start after priming the darn thing but it does the same process over again.Any ideas?

  • deberhoades May 07, 2009

    My carborator shined when I opened it up.
    I replaced the oil. 
    Drained the gas tank and put fresh gas in.
    Replaced the air filter.
    STILL It will crank only if I prime it, then instantly shut down.
    Now what. It feels like the throttle is not working or something is not giving it gas.

  • Anonymous May 11, 2009

    Same Lawnboy. 2 yrs old. Pristine carb, never let gas stand over winter. Changed oil, air filter and spark plug religiously. Problem: Starts easily. Runs appx. 3-5 minutes. Abruptly shuts off like the safety lever is released. No warning, no sputtering. Excellent power, idle speed, not surging...then instantly shuts off. I am suspecting a temp related failure in the high voltage side of the solid state ignition coil. I don't think this is fuel related. Will be trying fix this week when parts store opens Mon.

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I took my carburetor off and blew it out with compressed air. Runs great now. Make sure to get all of it. Little screw on bottom has a hole in it too!

Posted on May 11, 2009

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Potentially the solid state ignition (part number 34443C).

Posted on May 11, 2009

  • csm2 May 14, 2009

    This is csm2 again following up on my 11 May Guest comment (now I'm a member (csm2). I replaced solid state ignition (3444D (was rev C)) and this fixed the problem. Just mowed my 1/3 acre w/ no problems. I strongly recommend you do the spark test when in the warm fail condition and, if no spark, look into replacing that part. Hard to find part. Had to try several mower shops before I found it. Best luck.

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Try cleaning the carburetor out.
try cleaning the air filter out
try changing the oil
make sure there is gas

those are my suggestions

Posted on Apr 18, 2009

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http://www.csgnetwork.com/oilfuelcalc.html

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