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  1. #1
    Fat Man, Little Boat Region8Ultra250X's Avatar
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    proper plug Gap 07 250x

    anyone know what the proper plug gap is for the ultra250?


  2. #2
    2005 RXT Red08Ultra250's Avatar
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    According to service manual for JT1500B7F

    NGK PMR9B

    0.6- 0.7 mm (0.024- 0.028 in.)

  3. #3
    Fat Man, Little Boat Region8Ultra250X's Avatar
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    thanks

  4. #4
    You know that will change if you adding boost right?

  5. #5
    Fat Man, Little Boat Region8Ultra250X's Avatar
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    Quote Originally Posted by Skips313 View Post
    You know that will change if you adding boost right?


  6. #6
    .022 good up to the Map clip of 14.7 psi

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