In Michigan, you must transport rifles and shotguns on an ATV (ORV) unloaded and enclosed in a case. It is unlawful to carry a loaded, uncased firearm on an ATV, regardless of whether you are hunting.
Looks to be lt250. Utility machine. Maybe 84 or 85. I own a 84 lt185 bought new in 84. The dealer was out of 250 so I bought the185. The next week the 250s were back in stock,bummer. Still have the 185 and still runs.
Around here,a few of us pick them up as we ride with a trailer. Pain in the back picking them up. It's like a never ending supply of spikes. A guy takes them in for scrap.
Congratulations, welcome to the group. They have lots of manuals here for free. Get you some shop manuals for each one. The manuals and this group should help you out with just about anything.
Are you saying starter motor is stuck? Did you try tapping on it with a hammer? I believe that's it in the picture. Easy access, looks like you could take it off easily. I would start by making sure both motors turn over easily.