I'm not a ski doo guy, so am just making a SWAG... I'm thinking the clutch that is there now is not the correct clutch. It may fit the PTO shaft but may not be the same diameter as the original. How many teeth does the gear that is in there have? That may tell you. I'm betting you will need a clutch.
Good luck! And for the starting problem, clean the carbs. Twice. There are small fuel and air passages that go to the starting circuit in the carb, they get gunked up pretty easily and can make starting impossible. Starting with spotless carbs will give you a chance to get it adjusted so it starts easily.
That is where I would start...
Good luck! And for the starting problem, clean the carbs. Twice. There are small fuel and air passages that go to the starting circuit in the carb, they get gunked up pretty easily and can make starting impossible. Starting with spotless carbs will give you a chance to get it adjusted so it starts easily.
That is where I would start...