My 2011 mule 610 was starting fine. I took it in to get it assessed to see how much it would be worth. The dealer mechanic did a compression test on it and said that the compression failed. Ever since then the only way that it will start is to boost it off. And it doesn't have any power when I do get it started. What is the problem and how do I fix it?

 

Dealer do anything besides check compression? You can do a simple compression test yourself to confirm but I'd check valve clearance first if the dealer didn't. Having to boost one off with another battery to crank up can also be a sign of low compression on a lot of engines.