Can Am Renegade 800 maintenance tips?

I recently bought a Can Am Renegade 800cc, but unfortunately the owner didn't have an owners manual so I'd like to know how often should you change the oil, charge/replace the battery, clean the air filter etc...Before I took it out I got a tune up on it and cleaned the air filter and box as well, I took it out mudding 3 times already. And also is there any carb or oil injector cleaners for it? Any tips would be helpfull.