Need advice cracked manifold and speed wobble under acleration in 3/4 gear

[Gnasher]

Right so first and second gears aceleration is fine but as soon as your in 3 or 4 and pull the throttle doesnt seem to have power and then handle bars start to wobble like crazy                                                           

can just having the intake manifold craked all way through do this i have order new manifold boots but does the wobble come from engine jumping about under bad compression

any adice would be great

This could be all manner of things.  First is the engine pulling in 1st - 2nd gear to the red line?  When you say it "doesn't have power" is the engine still revving but the bike slowing or not accelerating at all the the bike is slowing?


Cracked intake manifold, do you mean rubbers?  These often crack but rarely right though, but it's possible and if they were would give you acceleration issues.