JE Piston

3 replies to this topic
  • YZ117

Posted December 05, 2008 - 08:47 PM


Im putting in a high compression piston in my 450, it is perfectly jetted now. Will I need to re jet with the 13.5:1 piston?

  • KJ790

Posted December 05, 2008 - 09:11 PM


You shouldn't have to make any drastic changes.

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  • atropine

Posted December 06, 2008 - 08:36 PM


I didn't. I only have about 3 hours on my new CP 13.5:1, but made no jetting changes and it runs great.

  • YZ117

Posted December 07, 2008 - 10:13 AM


Good news. Thx Guys.

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