cylinder head

  1. Sitherus

    GT5 No torque Low Speed

    My engine is a GT5 Stinger with a Jakes head and a ported cylinder body. I'm running a yz700 exhaust and a boost bottle. I also have an rt carburetor and an SBP shift kit, with an HD freewheel. My Bike frame is a Felt Vintage Iron Bolt, with a sealed gas tank. Im using the recommended NGK...
  2. FurryOnTheInside

    MZ heads, which plug (reach)?

    I was about to buy a BR7EIX when I stopped myself and went to check that the BR8EIX plug was clearing the piston at TDC, just in case. (I have just fixed another problem with the ignition but haven't been able to test again. I wasn't really expecting to have two problems that prevent starting!)...
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