History - Took the bike in for 10k maintenance - they adjusted the clutch, supposidly put more fluid in the brake reserviors, adjusted the tention on the drive belt, changed the spark plugs. In short, I had to readjust the clutch after telling the tech the lever was not suppose to flop and that on the way home I could feel the clutch slipping, I found motor oil on the rear tire rim, and the reveviors were leaking. I changed the oil - full synthetic 20W50 for the engine, 75W-145 for the tranny and 60w oil for the primary. Went on a 300 mile ride today and came across three issues Issue 1: after 100 miles my wife and I noticed that the rear brake was pulsating at slow speeds - I have read here that it may be a warped rotor but I am not sure. Could this have been caused when the tech adjusted my rear tire for the belt tention and misaligned it? Issue 2: after 200 miles and the engine well warmed, the enging felt like it was jumping/loping while I idled... it was very very rough... but it didn't do it all the time - what could be causing this? Issue 3: Talking with a friend and he said the that engine may not be loping but the clutch slipping because of the 60W full synthetic in the primary ... Is 60W really that bad?