I just got a 96 Big Bear 350 4×4. I’ve had a Honda Fourtrax 300 4×4 for 5 years. The big bear seems pretty similar in function but a little different in component layout. I’ve also have a Yamaha XT225 dirt bike so I’m somewhat familiar with the 350s engine design.

The ATV start easily and doesn’t smoke. It rides well. The only issue it has is the rear main seal is leaking. I read that may just be the rear yoke bolt being loose. Hopefully that is it. I am wondering though does the oil from the seal area come from the engine oil or is there a separate oil supply for the transfer case? As I look at it it appears it would be the engine oil so I better take care of this soon so the engine oil doesn’t get low enough to seize.