it vibrates more or less like a twin with a plug wire missing, except it has unbelievable torque. it has 160 psi compression on a piston as big as one from an 883 sportster. the spark was overadvanced when i started messing with it and it would slam back against my foot like a pick handle. it starts easily if i get the piston position correct, but i'm still figuring out where that is.
the smoothest bike i ever rode was a cagiva 900, back when they couldn't say "ducati." i traded my morgo with a friend for a short trip across the texas panhandle, and didn't think a whole lot about vibration. then i got back on the T120 and was horrified at how thick the grips had grown.