Answer by
jnelso58 (13)
First loosen the axle nuts on each end of the axle. Second, loosen the locknuts on both ends of the swingarm. Now, tighten or loosen the two bolts to adjust the axle position and chain slack. The correct slack at the tightest part of the chain should be between 1'-1.5'. Ensure the axle is aligned and retighten the locknuts.