Champion CJ7Y PLUG

Discussion in 'Motorized Bicycle General Discussion' started by daveet6666, Aug 24, 2017.

  1. daveet6666

    daveet6666 Member

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    I bought a spark plug that someone recommended but got home it was way shorter than the one that came with engine will this plug work?anyone know?
     
  2. crassius

    crassius Well-Known Member

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    depends mostly on heat range - I recall once using a stubby little champion plug in a bike that had no room for usual sized plug - worked well but I forget the number on it
     
  3. MotorBicycleRacing

    MotorBicycleRacing Active Member

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    I presume 66 cc 2 stroke bicycle engine?
    Get an NGK B6HS or an NGK B7HS if it is hot where you ride.
     

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