M7 dropping cylinder

rigrat

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Good day. Hit a tree last season with my m7 which caused damage to my sleds hood, nose piece and other plastic plus the airbox was smashed.When the accident happened i was able to remove loose pieces and ride sled back to my pickup. The problem is that the sled started dropping a cylinder part of the time (may have inhaled some pine needles) into motor. I replaced all broken pieces and cleaned everything up. Took it for a rip down the ditch yesterday and found it would still drop a cylinder. Sled seems to run ok at idle and part throttle but when opening it up to full throttle it will drop a cylinder everytime. If i go back to part throttle it will run on both cylinders again. Checked the compression and found both cylinders were within 5 lbs. One plug looked like it may have been fouling so i replaced it. No difference. If it was ignition it would probably run on one cylinder all the time, correct? Could it have a broken reed and would a broken reed cause it to act this way? Appreciate any and all help! Thanks in advance.
 

COLBEE

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i had an 06 m7 that did the exact same thing, the cable for the exhaust valve had come off of the little pulley on the servo motor, i put it back on and rann great!
 

rigrat

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This is a very old post of mine. Tried everything until the secondary blew up. Ended up being a clutch problem if you can believe it. Thanks for the reply.
 
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