Question about Troy Bilt 5.5hp Self Propelled Mower

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My Troy Bilt Self Prop. Z-start won't keep running. I clean All, replace Filter and Plug, have clean gas and lubed all. It Starts for 2 seconds and then cuts off. What do you think it could be? Thanks. Alan

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I had the same problem, Tilt the lawnmower on it's side air filter facing up and remove air filter cover and air filter then remove the fuel bowl underneath the carb; then clean the fuel bowl with some gas and a clean rag. For the next step be sure to aim blower tip at target then look away before pressing trigger, this will prevent gasoline form getting into your eyes.Take an air compressor and carefully clean out the carb where the flap is and the tube where the fuel float that would rest inside fuel bowl is. Leave on side install everything back except for air filter and cover. Then pour a little gas in the carb to prime it, lay the lawnmower back on all 4 wheels and try to start.

Posted on Apr 01, 2012

  • SiXxKilLuR
    SiXxKilLuR Jul 22, 2014

    I ran into this issue again and tried the above with no luck; then I reliazed the throttle cabled had rusted and broke inside the plastic shielding.

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There may be a cracked fuel line, cracked primer bulb, loose carburator, dirt/trash in the carb....it sounds like a fuel supply problem. Hard to tell with out hands on.

Posted on Aug 02, 2009

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