Between the factory repair manual and the instructions with the belt drive kit (most if not all the belt drive manufacturers have installation instructions on the web too), you should have enough info for a basic install. But, the basic instructions don't really go into the issue of proper alignment. If you want a trouble free belt drive you should go further than just considering the basic "in and out" alignment of the the pulleys. I believe its just as important to check that the pulleys are in the same plane both vertically and horizontaly. Another way to look at it is having the motor sprocket shaft and the transmission mainshaft being paralell when observed from both overhead or from the front or rear. Theoretically this is how your bike came from the factory, but in reality you don't often see it especially with parts that have been in service for what, maybe 70 years? This check should be a part of every new primary installation or part of trouble shooting problems with an existing primary wether its belt or chain. All you need to perform the check is a couple of straight edges or a couple of squares, it doesn't have to be a real scientific undertaking. If its off a little, correct it by shimming where needed, it has nothing to do with tapered shafts or bent frames. If its off a lot, check your frame. Sorry for being so dog-gone long winded, I just read what I typed and I sound like the Nutty Professor, but my point is - set it up right and you won't have any problems!