i spent about 1/2 hour fixing this thing the other night. I HIGHLY RECOMMEND CHECKING YOURS. below are two pics, the (hopefully) first, with big arrow shows what i'm talking about. the second, with squiggly line shows where the thing i fixed is.
so, that whole lever thing had been bothering me for a while. i had about 1/2" slop towards/away from the engine. finally had enough and took it apart. to do that, i popped the cable off, popped the ball end throttle linkage off, and on the engine side of the squiggly line there is a little hairpin looking thing that holds the shaft in place, took that off and promptly lost it until i was done. it's springy! then, just slide it out. i found very small remnants of a plastic bushing in there and some bad wear on the shaft that rotates every time you depress the go pedal. the inner diameter of where the shaft rides is 3/8", and i figured the shaft to be real close to 5/16, with mine being worn by about a shy 1/16" on one end. so i took a piece of 3/8" rod 2 inches long and attempted to drill a 5/16" hole through it. i ended up popping out about 3/4 of the way down. turned out that it fit the wear mark perfectly. i had to lightly tap it in with a hammer, and i guarantee that it's better than stock now.
now for the good stuff. i gained at least 3/8" throttle travel, maybe 1/2" kinda hard to tell though. AND, the response time is much better now. AND, i'm only using about 1/4" of pedal to cruise at 65mph. anyway, get out there and wiggle that thing.
so, that whole lever thing had been bothering me for a while. i had about 1/2" slop towards/away from the engine. finally had enough and took it apart. to do that, i popped the cable off, popped the ball end throttle linkage off, and on the engine side of the squiggly line there is a little hairpin looking thing that holds the shaft in place, took that off and promptly lost it until i was done. it's springy! then, just slide it out. i found very small remnants of a plastic bushing in there and some bad wear on the shaft that rotates every time you depress the go pedal. the inner diameter of where the shaft rides is 3/8", and i figured the shaft to be real close to 5/16, with mine being worn by about a shy 1/16" on one end. so i took a piece of 3/8" rod 2 inches long and attempted to drill a 5/16" hole through it. i ended up popping out about 3/4 of the way down. turned out that it fit the wear mark perfectly. i had to lightly tap it in with a hammer, and i guarantee that it's better than stock now.
now for the good stuff. i gained at least 3/8" throttle travel, maybe 1/2" kinda hard to tell though. AND, the response time is much better now. AND, i'm only using about 1/4" of pedal to cruise at 65mph. anyway, get out there and wiggle that thing.