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Stickkman99's avatar
Stickkman99
Explorer
May 05, 2022

onan marquis 7000 generator /no start

ive narrowed the no start problem down to the fuel tank.....i have put 25 gallon of fuel in the 100 gallon tank....i cant get no fuel to come out of the line to the generator,,,,,i blow on the line and i can here it bubble in the tank,,,,but that hasnt changed since i put the fuel in....does it take more fuel for the generator top pick it up or maybe something in the tank wrong....anyone know how the pickup is made or if it could go bad or break off inside the tank...any help would be greatly appreciated
  • dougrainer's avatar
    dougrainer
    Nomad
    May 05, 2022
    The Genset 1/4 fill pick up tube is not set in exacts. It is just a tube down from the top of the tank. So, in this case, I would get another 25 gallons in the tank and retest.
  • opnspaces's avatar
    opnspaces
    Navigator II
    May 05, 2022
    Yes there is a level at which the generator pickup starts sucking air. That's to keep you from stranding yourself when the generator sucks the fuel tank dry.

    If you're brave try sucking instead of blowing on the line. Start with a really slow light suck. You will know right away, either you are sucking liquid or you are sucking air. Just be ready to get your mouth out of the way.

    Or go fill up the tank and see if you get better results.

    Yes my mind goes there too, but keep it clean.

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