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Help Shim size and replacement

Discussion in 'Kawasaki 250cc In-line 4's' started by benpayne92, Oct 29, 2014.

  1. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    Can anyone please help with how to determine what shim sizes I need to get my valves back in spec and also a good place to buy them cheers
     
    benpayne92, Oct 29, 2014
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  2. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    Readings were as follow

    Cylinder 1:
    Exhaust 0.15mm , 0.15mm
    Intake 0.18mm, 0.15mm

    Cylinder 2:
    Exhaust: 0.9mm, 0.12mm
    Intake: 0.15mm, 0.11mm

    Cylinder 3:
    Exhaust: 0.13mm, 0.15mm
    Intake: 0.13mm, 0.17mm

    Cylinder 4:
    Exhaust 0.15mm, 0.15mm
    Intake 0.14mm, 0.15mm
     
    benpayne92, Oct 29, 2014
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  3. zixxer

    zixxer Well-Known Member

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    shim is a 7.5 same as all the inline 4 250's.

    all intake are good, exhaust need to come up to .2-.29.

    measure your current shim and add the necessary clearance on.

    eg, if your shim size for exhaust on cylinder one is 140 get a 130 to add .1mm.

    go to your mechanic and swap them, most will charge 5-10 bucks per shim.
     
    zixxer, Oct 29, 2014
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  4. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    So the intakes that are just under spec ok or should I change them too? I'll take the shims out and measure them tomorrow
     
    benpayne92, Oct 29, 2014
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  5. zixxer

    zixxer Well-Known Member

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    my bad, intake spec is .15, change them all and just mix and match them if they fit.
     
    zixxer, Oct 29, 2014
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  6. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    I have my shims out what's the best way to measure them
     
    benpayne92, Oct 30, 2014
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  7. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    Got all the measurements done
     
    benpayne92, Oct 30, 2014
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  8. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    Where to buy shims

    Hey everyone iv finally worked out the size shims I need to buy where is the best place to get them and what sorta price? Cheers
     
    benpayne92, Nov 2, 2014
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  9. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    What's the local dealer like on prices? Sometimes if you ask nicely they will swap them for the ones you want.
     
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    Murdo, Nov 2, 2014
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  10. Tim_

    Tim_ resident nutcase Contributing Member Dirty Wheel Club

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    do you want 2nd hand ones? I'm actually taking apart a A model engine at the moment..
     
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    Tim_, Nov 2, 2014
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  11. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    I'm going to check the local dealer tomorrow and possibly tim what price do you want I need 11, also does anyone know the diameter the shims actually are for the zxr I couldn't it in the manual
     
    benpayne92, Nov 2, 2014
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  12. zixxer

    zixxer Well-Known Member

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    7.5mm diameter, most mechanics will charge for them all bike shops will have shims, 7.5mm is used in dirtbikes aswell.
     
    zixxer, Nov 2, 2014
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  13. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    Ok thanks mate I'm gonna go down tomorrow
     
    benpayne92, Nov 2, 2014
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  14. Gen

    Gen Well-Known Member

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    Gen, Nov 3, 2014
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  15. benpayne92

    benpayne92 Active Member Premium Member Contributing Member

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    cheers everyone ordering them through precision shims
     
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    benpayne92, Nov 3, 2014
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