'89fxstc with a S&S shorty Super E, It starts and Idles fine, and runs great out on the road. Problem, when I'm basically idling down the street or at a stop sign and give the throttle a slight increase it takes off like I gave it a much bigger twist. Very slight movement of throttle will increase rpms a lot. Doesn't seem to be sticking and has both cables on it. It's pretty goosey around parking lots and such. Anyone got an idea?

 

go to S&S's web site they have a great instructions with pics.

 

Your accelerator pump probably needs turned down a nudge. See #3 in the pic. Small adjustments recommended ( and remember where you started just in case!)

 

youtube videos by s&s are terrific too.