Are the 87's the ones to stay away from? If so why ? All I've seen is there are no piston kits and kips valves are to hard to find if bad. I've been searching on here and haven't found a lot of 87 info
87 is a stand alone year /similiar motor 86/88 but still differance /heads, clutchs, cranks, gearbox parts are all differant
later pistons conrod kits bearings etc will all fit
Kipp valves 86/88 hard part to get but do come up ever now and then on ebay etc
87 clutch and gearbox part are also getting harder to get
Personally i am not a fan of the 87 looks/ 88 was the first year with the later look /panels frame etc