I'm tryin to adjust my my chain slack and can't get the axle nut loose. I have a 2005 TTR 125 and the nuts and bolts have not been touched since i got the bike about a month ago. 3 different guys have tried to loosen the bolt and nothing. We gave up because we figured if it tried anything further either the bolt was going to get stripped or we would snap the axle bolt. Any suggestions on what to do? I'm suppose to go riden in the Pocono's on Saturday and i'm real leary of riden my bike since it has close to 2.5-3 inches of slack in the chain, Yamaha recommends 1.5-2 inches.