1979 VIP 2 speed. Fresh rebuild, new bearings, seals, clutches. Avanti top end, Delorto PHBG, Seal magneto/CDI, Biturbo. Starts and engine sounds fine...but. It seems to rev too much at takeoff and seems to not want to go much over 25 (stock gearing). The thing I noticed that worries me, I cannot roll the bike backwards, it did before my test ride I have not yet replaced the clutch cable, so I am starting with a drill gun. Any ideas what I boofed?