G1 Back firing

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  • G1 Back firing

    My G1 back fires. I have replaced the carb as it loading up and flooding out. Any ideas what is causing it to back fire?

  • #2
    Timing is usually what causes backfire could be valve timing or ignition timing.

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    • #3
      thottle linkage is ajusted wrong thottle should not open till after motor is turning over

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