You will need a new (good used OEM) stator. Start a wanted thread... take a pic of the plug
Most Banshee's don't roll easily in gear cold with just the clutch pulled in, not that something could not be messed up.
I run a DID chain advertised with thicker side plates and I know other links won't fit it. Also ran in to that problem on my kids LT80.
I always get a master for the specific chain now.
one vent hose runs from under the rear motor mount, the other from the water pump cover, they Tee above the engine and then run up the steering stem and down a little to the atmosphere.
The tee is for the case vents not coolant.
Lower outlet on the overflow tank goes to the radiator neck
Upper outlet hose goes up the steering stem and down to nowhere (atmosphere)