First, please tell me you removed the entire throttle grip assembly and replaced it with the new Kuryakn grip assembly...
I found the throttle cables may not get routed properly around the inside of the grip assembly. Make sure they're not pinched inside. You may have to play with that.
Most likely is you have to readjust the 2 throttle adjusting screws at the front of the assembly. This may take some fooling with and was probably the hardest part for me. Be patient. Give it lots of slack, then adjust both so there's j-u-s-t a bit of play on & off throttle.
Also, you may have to loosen the entire assembly on the bar and rotate it SLIGHTY forward, or back, to accomodate the cables. There should be a tiny mark on the bar where the housing halves are supposed to match up.
Best of luck, I've had mine on for a couple of weeks and LOVE them.
[ This message was edited by: Silverado57 on 2007-04-29 20:05 ]