06-21-2013, 11:49 PM #1
- Join Date
- Jul 2012
- Northern VA
97 720 motor......starts and idles but has a harsh vibration to it.....any ideas??
compression is 129/130......when you rev it the motor shakes alot.....not really hearing a clacking sound like a busted rod and motor mounts are not broke....any idea what could cause this??? Gonna pull the motor anyway but wondered if anybody has experienced something similar.
06-22-2013, 09:51 PM #2
The 720 is a shaker to begin with. Add maybe some dirty or mis-adjusted carbs and it gets much worse.
06-23-2013, 06:27 PM #3
- Join Date
- Jun 2013
does it get better or worse when you apply throttle?
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