/ Register

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Help ZXR250RR timing

Discussion in 'Kawasaki 250cc In-line 4's' started by Tonino, Jan 8, 2025.

  1. Tonino

    Tonino Active Member Premium Member

    Messages:
    37
    Likes Received:
    8
    Trophy Points:
    178
    Joined:
    Aug 3, 2020
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Melbourne
    My Bike:
    Benelli 254, CBR250 RR. Suzuki Across. Kawa ZXR 250R. Benelli750.sei. MV agusta 125 s
    Hi guys am having issues with timing my ZXR250RR which I believe to be the reason I cannot get it to start . Can someone clarify the correct wat to set the cam timing as when I set the timing marks up correctly then add the cam chaim tensioner the marks are then out. what am I doing wrong? cheers
     
    Tonino, Jan 8, 2025
    #1
  2. Linkin

    Linkin The Mechanic - Moderator Staff Member Premium Member Contributing Member Dirty Wheel Club

    Messages:
    4,955
    Likes Received:
    3,094
    Trophy Points:
    1,018
    Joined:
    Mar 18, 2014
    Location:
    Sydney NSW
    My Bike:
    FZR250R 3LN6
    ZXR cam cap is one piece so makes it harder, but try to set the exhaust cam first with all the chain slack pulled to the inlet side. As you bolt down the cam cap it compresses the valve springs and the cams move down to seat, so what looks right might be advanced or retarded one tooth, so you will need to play with setting them what looks to be one tooth out but will come out correct with the cams fully seated.
     
    • Like Like x 1
    Linkin, Jan 8, 2025
    #2
  3. Why?

    Why? Well-Known Member Premium Member

    Messages:
    308
    Likes Received:
    259
    Trophy Points:
    273
    Joined:
    Jun 21, 2022
    Gender:
    Male
    Occupation:
    Retiring Very Soon
    Location:
    Melbourne
    My Bike:
    ZXR250C, ZXR250A, CBR250R(MC19)
    The manual has a pretty good description on how to do it, exhaust mark lined up even with the top of the casing then 29 pins till the intake mark or something like that.
     
    Why?, Jan 8, 2025
    #3
  4. GreyImport

    GreyImport Administrator Staff Member The Chief Contributing Member

    Messages:
    11,043
    Likes Received:
    6,844
    Trophy Points:
    1,168
    Joined:
    Jun 14, 2012
    Gender:
    Male
    Occupation:
    Between a Rock and a Hard Place
    Location:
    North by NW NSW Oztralia - Tamworth
    My Bike:
    *Kawasaki ZXR250C *Yamaha FZR250R 3LN1 *Yamaha FZR400 *Triumph Bonneville 750 T140V *Triumph Daytona 675 *Triumph Tiger 800XC
    GreyImport, Jan 8, 2025
    #4
  5. gyro gearloose

    gyro gearloose Active Member

    Messages:
    142
    Likes Received:
    133
    Trophy Points:
    148
    Joined:
    Feb 27, 2023
    Gender:
    Male
    Location:
    sydney
    My Bike:
    variable
    always rotate the crank in the direction it runs... keep the slack on the tensioner side. sometimes it helps to shove a screwdriver or extension bar in the tensioner hole to keep things tight... align cams just before marks so they pull up to the marks.

    regardless of what it is...
     
    • Agree Agree x 1
    gyro gearloose, Jan 10, 2025
    #5

Share This Page