I have a 08 teryx I got it used it has a lil over 3,000 miles. I was riding easy on a trail started up a hill and it starterd smoking oil smoke and had a pinging sound also.I shut the machine off and checked the oil and it was full. Started it up and it was fine rode it home and it made no noises and didn't smoke again. I've read on here about the crankcase blowing oil to the breather. But really worried about the pinging noise. Is this common?