I have about 7 Sno runners. They are a blast to ride. 80 bucks!!?? You did GREAT. Are you missing your starter, or is it just not working? You can use a recoil from a two stroke single stage snowblower, like a small toro or the like. Make sure it has a Tecumseh engine. The Sno runner motor (Chrysler power bee) spins counter clockwise as opposed to clockwise like a normal motor, so you will have to flip the spring around. you will also have to drill a new hole in the rewind housing for the rope. If just the starter dogs and the cup are worn, MANY old chainsaws used the Fairbanks Morse starter system. (fairbanks made yours.) A good (not home depot) chainsaw shop may have the parts you need. Try a STIHL dealer- they thrive on customer service. You can try Snorunner.com, his prices online are a little less than the ebay store. Recreational liesure- The makers of lil indian- they sell NEW drive tracks for last I checked 40 bucks. They also have other parts, but you have to ask. Ebay has been scarce lately, but it's winter so check daily. Get a NEW ski, worth the 35 bucks. A worn one can make a huge difference in handling, and make it no fun to ride.
Just like Teeks, I had one that I was going to restore, only to find out it was cheaper to buy a parts sled than to buy new parts. That's how I ended up with 7. I hope this info helps, I'll be out of the office till Friday so I can't help any more till then.If you need more info let me know, I can probably save you a few bucks. all I ask is that you post some photos of your score!! Ps DONT SELL!!