I adjusted my chain tensioner on my blaster today to tighten the chain. well anyways i didn't notice it for a day or two but then i pulled a wheelie (long enough to notice) that it steered to the left. i checked the psi and they are both he same. then i looked a little closer and realized my axle was crooked (not bent) so i loosened it back up straightened it out and retightened it, and it happened again. i repeated this process 3 times and no matter how tight i tighten it the axle still goes crooked.? is there something I'm doing wrong or is something bent?