Thread: '99 XLT1200 66V Seized
07-07-2014, 08:04 AM #1
'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.
07-07-2014, 08:41 AM #2
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?
07-07-2014, 08:44 AM #3
Thanks. Those are the SBT version of waveeater clips.
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