Good sled.
Where in MN? ie, what altitude will your buddy be riding at.
I have an 01 Summit 700 standard and from what I've read it was set up (carbed) to run at altitude (6000 ft plus) so if you are anywhere at or above that you should be good with the standard jetting (pto and mag side 520 main jet and 17.5 pilot jet btw), shoulb be a pair of TM type carbs in there.
The Manual I have says warm idle at 1500 +/- 200. and it's probubly worth ordering a manual on disc, especially if your friend is mechanically inclined and on a budget, (do a search, or just buy one on e-bay for probubly $10.00-15.00).
If it's new to you (or your buddy) it is probubly worth taking the sled to some clutching guy and having them service the clutch(s), replace buttons, ect... as needed, just nice to have a good starting point and a clean clutch is a happy clutch, oh, change the chain case oil (again, just to have a starting point).
How many miles are on it, many of the Summits are due for a top end and probubly lubeing the bottum end crank bearings too by around 4000mi. Check the compression, 110 is getting worn and tired, soon to be rebuilt, 140's and you are golden
If you can shed the stock can for something after market then you can shed some weight easily and these sleds like that.