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Aftermarket Plug Caps

Discussion in 'Yamaha 250cc In-Line 4's' started by HiveFleetAbyss, May 18, 2015.

  1. HiveFleetAbyss

    HiveFleetAbyss Active Member

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    Do after market plug caps exists for the FZR and Zeals? If so where can one obtain them and what specs does it require? Mine aren't sealing properly and causing the motor to miss occasionally and don't feel like paying genuine tax.
     
  2. HiveFleetAbyss

    HiveFleetAbyss Active Member

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    Also updating found greys FZR build thread with the link to new caps etc but noticed they are 5k resistance, Zeal spec sheet says its a 10K though will this make much difference etc, is the bigger the number better or the lower, I honestly have no clue when it comes to this.
     
  3. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

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  4. HiveFleetAbyss

    HiveFleetAbyss Active Member

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    So after reading them (correct me if i'm wrong) so a spark plug dampens so much of the RFI but not all of it so the caps block the rest, so that would mean a higher resistance would be a good thing then? Or can too high of a ohm resistance in the cap cause issues?
     
  5. HiveFleetAbyss

    HiveFleetAbyss Active Member

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    Also in regards to keeping water out and away from my plugs do the SD05SF actually seal the plug hole up properly or is there gaps around the outside?

    (pics stolen from your build thread grey)
    IMGP2009_zps59594f18.jpg

    [​IMG]
     

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