I've had my ironhead for a few years and have gotten by with the clymer manual. I have my grandpa's service manual that he bought with his 82 FLH (same year as mine, how cool is that)? Man, world of difference. I know some of you guys that have been around a while are already hip to this, but I can't believe how great this manual is and how much better it is then my clymer (which to be fair covers all of the ironheads, not just 2.5 years like my FL manual). Just a heads up, it's worth the trouble to find the actual shop manual for your bike.