After going to four different part stores, and having nothing but blank stares for answers when I asked if they had moly disulfide oil, I decided to call Bel Ray and ask about their assembly lube. The technician over the powersports products said my job is precisely what assembly lube is for. It has oil and moly in it, which is what the manual calls for. They put it in paste form so it will stay where you want it, but the oil in it will run when torqued down. It's also oil soluble.
There's only four head bolts where this moly disulfide oil is needed, and they only get 36 ft lbs of torque, so I figured I'd take Bel Ray up at their word.
I put a smearing on the length of the threads, and on top and bottom of the head bolt washers and torqued them down in sequence to 36 ft lbs on a click style torque wrench. Assembled the entire engine, then took it apart again. The head bolts came loose at 34.7 ft lbs according to my digital torque adapter tool that records breaking point force. There was not much paste left on the bolts. Looked like it had mostly turned to oil. They felt smooth and predictable threading in and out. So I put more assembly lube on the same things, and reassembled the engine again. (The reason for two assemblies was to check piston to valve clearance). Filled it full of coolant, and fired it up. Sounded great, no leaks, and no cracks. Went for a 3 mile ride to heat up the oil, then changed it to my winter viscosity. Then I took the bike for a 25 mile ride, and no issues to report. Full power restored, and she purrs like a kitten.
Good enough for me!
