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  1. #1
    PWCToday Newbie ealbertson98's Avatar
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    Mar 2017
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    650sx high compression

    I just picked up a 650sx with a 44mm carb, west coast pipe, and intake and exhaust manifolds. the ski is running 180 psi in both cylinders with stock decked head I'm assuming. My question is there special procedures I should go by because of the high compression, I've only had stock 650sx with 150 compression.
    2005 Kawasaki Ultra 150
    1989 kawasaki x2
    1990 kawasaki 650sx
    1994 kawasaki 750ss

  2. #2
    PWCToday Regular 92Kawasaki750SS's Avatar
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    Re: 650sx high compression

    Should be fine using highest grade pump gas and 40:1 mix.

  3. #3
    Resident Guru bored&stroked's Avatar
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    Re: 650sx high compression

    Quote Originally Posted by ealbertson98 View Post
    My question is there special procedures I should go by because of the high compression, I've only had stock 650sx with 150 compression.
    Hold on tighter when you pull the throttle.
    '90 Superjet: ported 760, dual 44's, B pipe, ADA head 190psi, TDR waterbox, hooker 10-16, sponsons. Girlfriends ride
    '94 Suuuperjet: 718cc, pro tec pipe, Groupk head 175psi w/protec girdle, protec ride plate, MSD coil, UMI grate, Roundnose pole -4", rev footholds, sweet green turf and wrap.
    '95 Raider 701: Fiberglass not SMC, Hydrotrailer hitch, ugly purple and yellow everywhere.

  4. #4
    PWCToday Newbie ealbertson98's Avatar
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    Re: 650sx high compression

    Appreciate y'all always got the answer
    2005 Kawasaki Ultra 150
    1989 kawasaki x2
    1990 kawasaki 650sx
    1994 kawasaki 750ss

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