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  1. #1
    abie_lah's Avatar
    Join Date
    Jul 2009
    Kuala Terengganu, Malaysia

    valve train upgrade for fzr engine question,,,,

    thats parts its importan or not like seadoo engine?? and what is max rpm with stock fzr valve train??

  2. #2
    dhoad's Avatar
    Join Date
    Aug 2005
    North Aurora, Illinois, United States
    8500-8600 seems to be accepted as "safe"

  3. #3
    SHOBiz's Avatar
    Join Date
    Jul 2008
    Wylie, Texas
    If I am interpretting this correctly - SD limits I read should in general be limited to around 8,600 rpm. For the Yami 1.8l I say 8,800 rpm, but you can be a little more conservative.

    I have heard it said the aftermarket valvetrain is good to 10k rpm, but I have also seen a motor that failed on the top end at 9,700 rpm.

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