These holes are on the front of my liberty 800, one beside the primary clutch and two one above the other towards the front center. http://www.snowmobileforum.com/membe...m498-sled.html
If you click on the 1st 2 photo's I have them circled.
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2012 IQ LXT 550F
2002 Edge X 800
1990 Indy 500 SKS
The holes are probably for accessories or mounting that weren't used on your sled. They were on my 800's, as well. Nothing was attached to them in either of my Edge 800's.