My honda had a lot of them too!
Most that I have come across on the rzr so far aren't try self tapers. They are self starters, or that's what I have always called them. Self tapers have a drill point and the threads are much more coarse. Self starters have a standard thread pitch just a tapered nose. When screwing into tubing it is easy to strip out, can be aggravating.
So far I haven't seen anything on the rzr that different than what's used on our kawi and my old honda.
What bolts you having issues with?