Keep motor running??

Discussion in 'General Questions' started by George333, May 17, 2016.

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  1. George333

    George333 Guest

    Just bought new used bike; first timer; emptied tank added new fuel with 20 to 1 ratio; runs fine with fuel filter full ( fuel valve OFF) ---then when I turn valve on motor jerks and dies?? Is it my throttle? Is my gas too rich with oil? Please help All suggestions welcomed Thanks