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Thread: 2 Stroke Compression test - 250R's

  1. 01-10-2011, 05:51 PM #1
    ceaserthethird's Avatar
    ceaserthethird
    ceaserthethird is offline Power User Got the holeshot
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    Question 2 Stroke Compression test - 250R's

    Top End - Stock Cylinder / Re Sleeved Big Bore 295 AKA 310

    LRD Big Bore Cool Head - 21cc Dome

    My First Compression Check ( COLD ) reading's - 195 -200 PSI

    ( 6 hr's riding Breaking in )
    Second Compression Check ~ WARM Motor 225-230 PSI

    I didn't expect a HUGE Jump in Compression

    Any one here Running around this much Compression ? ? ?
    Attached Thumbnails Attached Thumbnails comp.jpg  
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  2. 01-10-2011, 08:29 PM #2
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    BGP
    BGP is offline First Time Rider Arm chair racerNew to the board
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    Fresh rebuild, 200psi at sea level with .078" squish clearance! Haven't even fired it up yet!


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  3. 01-10-2011, 08:48 PM #3
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    ceaserthethird
    ceaserthethird is offline Power User Got the holeshot
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    No Ping, But I'll be running Straight Race Gas - 110 octane.
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  4. 01-11-2011, 12:30 AM #4
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