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5hp briggs wont start!!

Discussion in 'Mechanic and Repair' started by LADDERMAN643, May 12, 2009.

  1. LADDERMAN643

    LADDERMAN643 LawnSite Member
    Messages: 9

    5 hp B&S horizontal shaft, siphon carb. ,first the troybilt tiller was ran on varnished fuel-exhaust valve was stuck . no compression do to stuck open valve. Fuel tank had loose rust in it.
    rebuilt carb and and cleaned fuel tank out . replaced head gasket after getting stuck valve loose.cleaned head etc. replaced air filter also,
    started tiller, tilled a while with it ok- next day started again and it ran 15 second and died-wont start. broke pull rope fix it . tried choking no good. back fires thru carb if choked .have spark and fuel and compression. what happen?
     
  2. Restrorob

    Restrorob LawnSite Fanatic
    Messages: 11,029


    The above is a sign of a intake valve not seating fully.....
     
  3. LADDERMAN643

    LADDERMAN643 LawnSite Member
    Messages: 9

    well the valves were ok - I found a loose lift tube on siphon carb -it was lose in fuel tank--by the way hows does this plastic lift tube install?-do you heat it up to install?
    too tight to slip on
    model 130297 5hp briggs horizontal shaft-gas engine.
     

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