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  1. #1

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    Question Fuel pump question 125cc zongshen

    I am doing a build using a zongshen 125cc engine with a sheng wey carburetor. In my case the gas tank is sitting lower than the engine. Will I need to use a gas pump of some kind? Also any tips on first startup is appreciated. Will I have to get fuel to the carb before i Start crankin it up. It has an electric start btw.

  2. #2

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    yes you will definitely need fuel to the carb before you try start it!
    you will also need a pump of some kind if the tank is lower than the carb.
    is this for a go-kart or something like that??

  3. #3

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    Ok. Thanks. I am building a trike based on a honda zoomer

  4. #4
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    motodevo is offline Miniriders OG Master Spanner Spinner
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    Easiest option is a go kart fuel pump. Drill and thread a barb into the intake valve cover plate(or get a valve cover fitting for a catch can) so you can run a hose for the pulse line of the pump. Did it on a go kart where the tank sat on the floor plate of the kart (tank filler was at the height of the very bottom of motor) and worked a treat. If your running a battery a low pressure electric pump would work too.
    Too many zeds in the shed

  5. #5

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    Quote Originally Posted by motodevo View Post
    Easiest option is a go kart fuel pump. Drill and thread a barb into the intake valve cover plate(or get a valve cover fitting for a catch can) so you can run a hose for the pulse line of the pump. Did it on a go kart where the tank sat on the floor plate of the kart (tank filler was at the height of the very bottom of motor) and worked a treat. If your running a battery a low pressure electric pump would work too.
    Thank you for the input. I have started it and will probably use a vacuum fuel pump.

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