I was driving along in the sand dunes and got stuck on a hill in some trees. Had to lift the front end around to point down cause of the trails limited space. Left it running the whole time as I had just gotten it out for the first time in quite awhile. Drove for maybe another 10 minutes and noticed a burnt oil smell. Stopped and had some smoking from around the engine. Looked it over and didn’t see anything specific so took it easy back to camp maybe couple hundred yards. Pulled up and it died . Hasn’t started sense. Pulled air box cover off and had maybe half a quart of oil in there and a pretty nasty air filter. Talked to shop near buy and they said to change oil, spark plugs, and air filter and it should start. Well that didn’t work and now I’m home got it apart and still can’t find anything outwardly wrong with it. Need help and hate over priced shops with no diagnostic ability. Money pits here in Eureka , CA.