So i have a 2005 polaris scrambler 4X4 HO. I have recently been riding when i started feeling my chain jump or skip.... I couldn't ride more than 2 meters without the chain slipping/jumping and me losing all power. My chain is fairly loose and also skips when i put the bike into gear. I hoped off and looked into the sprocket area from the engine. The chain is jumping after going around the sprocket and heading back towards the rear tires. Is my chain too lose and needs to be tightened or replaced, or is my main sprocket worn out? The sprocket i am talking about is the one connected to the engine that powers the chain. Please help!