1. Can’t make it to the GIE+EXPO 2017?
    LawnSite brings the trade show floor to your fingertips with our new GIE+EXPO 2017 Sneak Peek video series debuting now in the Lawn Mowing forum.

    Dismiss Notice

5hp briggs wont start!!

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


    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.....

    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.

Share This Page