2005 SuperSport 550 starter

I'm heading up to my Dad's to do some sledding over Christmas. He told me his sled won't start, starter won't engage.
He doesn't have a manual, I don't have a manual for his.
I'm assuming it is the starter drive.
Any chance someone can clue me into how easily the starter is to get too?
Or an online manual?

Jeff

2005 SuperSport 550 starter