I am putting together a rather mongrel KH engine using some of the early Sportster stuff I have laying around, in order to preserve meager motorcycle funds.i.e. funds my wife does not know about! The KH presently does not have a transmission and I have been told that, given a properly fitting trap door, gears from some Sportsters can be used. I do have a 1971 primary drive assembly and clutch that is in pretty good condition and I was wondering if the gears from a '71 Sportster would fit the KH cases and then useable with the '71 primary drive. I seem to remember reading that the KH primary chain was shorter than the Sportster, though the same pitch.
I also seem to remember that in order to use the Sportster shafts and gears that the countershaft bearing in the KH cases has to be changed. Interestingly I have a few Sportster countershafts laying around and they seem to fit the needle bearing in the KH case just fine. It would be nice if I could use any Sportster trans gears/ shafts as long as the shaft is bored for a clutch release rod.
Any info, suggestions or directions to references would be appreciated. Going thru the internet and printed references can many times be very contradictory!