The Ironhead Sportster normally came equiped with a rear chain not some rubber belt drive. In order to make one last Ironhead Sportster riders just have to easily service it. This is how the 1980 Ironhead Sportster rear chain is taken care of.
Harley Davidson 1980 Ironhead Sportster Rear Chain Checking
Harley Davidson 1980 Ironhead Sportster rear chain checking is easy to get done. The chain is just checked for worn chain links and correct adjustment. A correctly adjusted rear chain should have 1/2 inch total free up and down movement. In the lower strand, midway between main-shaft and rear wheel sprocket. As chains stretch and wear in service, they will run tighter at one point on the sprocket than another, therefor, always rotate rear wheel and check adjustment at tightest point of chain. Why shouldn’t the rear chain adjustment get checked before some chick gets packed?
Harley Davidson 1980 Ironhead Sportster Rear Chain Adjustment
Harley Davidson 1980 Ironhead Sportster rear chain adjustment is also simple. First loosen the rear axle nut. Turn the axle adjuster nut on stud of axle adjuster assembly either counterclockwise to loosen chain or clockwise to tighten chain. adjust nut on either side the same number of turns to maintain alignment of wheel. Since the adjuster nut on both side of the swing arm are supposed to be turned the same amount of times that means the same amount of threaded bold should be there also. One just has to measure the bolt end to make sure the alignment is right. Why is some tape measure easier to use than counting nut turns?