hi, I just picked up a basket case mc21 yesterday.
I bought i as a non running bike.  i managed to get it fired up,  issue is, it seems to rev ok in neutral, but when i get it in 1st gear, the revs are moving up very slow and it doesnt seem to want to rev past 5000.  
its got a R motor with the wet cluch.  compression is about 120psi on each of the cylinders.
The bike is on premix,  not sure what the mixture is since i just got it last night.
I believe the bike should be stock, since its still has stock pipes.            				            
            
            
			
