Im after service guidelines for 96 evo
In my opinion, the Evo engine is the best engine Harley ever designed. Sure it has a few problem areas but as far a good basic engine or an engine that can be modified for tremendous power, the Evo is the one for me.
Basically, change the engine oil at least every 3000 miles, the primary oil and transmission oil at 5000 mile intervals. Personally, I change the oil in all three every 1000 miles. Oil is much less expensive than engine overhauls.
Check the adjustment of your primary chain everytime you change the oil. Remove the tappet filter screen, (little plug on the crankcase near the oil pump), and clean that every oil change.
Other than that, keep an eye on your rear drive belt tension, your brake pads and fluid level. That's about it. Today's Harleys are better than they've ever been. Take that from someone that works on the old Pans, Shovels, and Ironheads. Today's Harleys are real feats of engineering. Enjoy your bike and ride carefully.