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  1. #1
    PWCToday Newbie couglin's Avatar
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    Piston ring enda gap position

    Hello!
    Ned som help, can somone tell me the position of piston ring end gap??
    The engine is fx140, please!
    Thanks

  2. #2
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: Piston ring enda gap position

    I put my oil rings at 7 and 5 o'clock and my top 2 rings at 10 and 2 o'clock. I've done that on every 4 stroke from chevy smallblocks to 300hp ford 2.5 to 4tec and 250x kawi. Never let me down yet.
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  3. #3
    PWCToday Newbie couglin's Avatar
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    Re: Piston ring enda gap position

    Ok, thanks Myself!
    Is this general for every engine or from brand to brand?
    Sorry for my bad englisch ��

  4. #4
    PWCToday.com Is My Home Away From Home Myself's Avatar
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    Re: Piston ring enda gap position

    I just stagger them like that on every 4 stroke.
    http://www.facebook.com/twinlakesjetskirepair

    '89 Kawi 650SX 42.4 GPS
    +3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate

    '99 Yama GP1200 65U 61.8 GPS
    ported cylinders, matched cases, milled head, blueprinted pump, long ride plate

    '96 Seadoo HX 717 53.13 GPS
    light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone

  5. #5
    PWCToday.com Is My Home Away From Home hyosung's Avatar
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    Re: Piston ring enda gap position

    as long as the gaps are not lined up on any ring your good to go !,not that it really matters anyway , they spin on the piston so i believe! ..but yea i stagger them just because
    Last edited by hyosung; 08-11-2017 at 01:03 PM.
    2 x 650 sx custom build (my toys) http://www.pwctoday.com/showthread.php?t=425767

    modded X2 650

    stock looking ZXI 900 ""being cannibalized to sponsor a 650 sx build """

    Jerry Rigging is my specialty .....


    Originally Posted by hyosung
    so when you say i """ hammer and slap things together """ this may be so , BUT they are hammered and slapped together SOLID

  6. #6
    PWCToday Newbie couglin's Avatar
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    Re: Piston ring enda gap position

    Ok, thanks Myself and Hyosung

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