So a buddy of mine and I got together and replaced the trannsmission with a new one.... long story, I bought a used bike, didn't know the guy had raced it, and I got stuck with the about-to-fail tranny; which it did (a bent shift fork and ground out gears 1 and 2)..... so we put in a whole, brand new one.

Anyway, shifting is now much harder than it was before. It's a little stiff to shift from N to 1, but its really tough to go 1-2, little easier 2-3, and the same hardness to go 3-4, 4-5, 5-6. It shouldn't be a damaged part; nothing had any signs of wear and everything look good when we put it all in.

The bike doesn't creep forward at all ever, so I know the clutch is fully disengaging. Any ideas?

 

mine did the same thing i did the clutch adjustment on the lower side of the bike and it went away.