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  1. #1
    boudin's Avatar
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    '99 XLT1200 66V Seized

    Looking for second opinion here... About 5 hours since rebuild. Motor pressure tested. Riva flame arrestors; 120 mains/110 pilots; 1.5 N/S; 1.5 turns on highs; .5 turns on lows. SBT top end kit w/sleeved cylinders; low-hour OEM crank. Pre-mix @ 50:1.

    Customer was riding high speed for about 20 min, then all of a sudden dropped RPM for several seconds and quit.

    It looks to me like #2 broke a power valve, stuck piston and then kept getting hammered. Or... is this a lean condition in #2? I went through the carbs, including #2 and they look perfect. Reed cages look good (except for the shrapnel).

    PV in #1 also broke in half, and there is some scoring on the cylinder walls, but nothing like #2. #3 looks fine.

    Thanks,
    -Greg


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  2. #2
    TX21's Avatar
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    50:1 is a bit lean in my book. I always run 40:1. The crank dosen't look burnt to me so I'd say it was the powervalve. No waveeater clips?

  3. #3
    boudin's Avatar
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    Thanks. Those are the SBT version of waveeater clips.

    -Greg

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