Recently traded for this sport quad and it ran great just kept dieing, it definitely was needing a new battery and maybe a carb clean. So I cleaned the carb and got a new battery(12v short battery, model 9 meant for atv's, boats, ect.). After putting the battery in and and cleaning the carb, everything was fine but now when I start it the starter ensembely just spins. I took off the 3 8mm bolt cover for the starter assembly. All the gears are fine, it has a new starter. I checked the starter clutch by checking the gear that comes out of the fly wheel compartment and it only spins one way(counter clockwise). All the gears are in great condition and everything spins as it should with the cap off, but it's still not engaging the fly wheel. I'm not sure if this is something electric or mechanical. I don't see how it could be mechanical as I've only Changed the battery and cleaned the carb and it ran before I did the work. I don't have any experience with quads but I would love some in put to see what I may have missed, thanks!