Originally Posted by anim8r
.....it turns out the throttle is sitting wide open & it can't be slowed down......
Also check the routing of your throttle cable.. too many tight turns and it will bind up in the cable sheath. There's a good thread around here on shortening the throttle cable, I haven't tried yet but it's on my to-do list when I get my hands on a bit of silver solder, which is around $10 from many retailers. Last time I looked the place I went to was actually sold out, so the project will wait until I'm there again.