1/4 Turn Throttle

[Carl La Fong]

A while back, I modified my throttle shaft to allow my carb to open all the way. It worked well, for a while. I noticed that it still wasn't going WOT, so I moved the ball fitting a bit closer to the center line of the throttle shaft. Much better.......until last Saturday. I was riding along and the throttle stuck in the idle position. I jury rigged a fix and was able to finish the ride. Upon getting home, it was evident that the pull on the cable was almost passing across the center of the shaft. No good, at all. I brainstormed it, for a while and decided that I needed something like most bikes have, a circular drum that allows the cable to pull, regardless of the distance from the butterfly shaft. I tossed a hunk of aluminum in the lathe and whipped up this gizmo. It screws to the throttle shaft via a sheet metal strap that I riveted to it. The cable slips in a radial groove on the edge of the drum and is secured in the open hooked hole. After a few tries, it works slick as snot on a brass doorknob. I only had to deepen the groove a tad more to get WOT. The deeper the groove the quicker the action.

[mmaupin]

Nice!

I am always amazed with people that watch Dr. Oz, Dancing with the Stars, etc.

What a waste....

Be creative or constructive; this device shows you are both.

[Iron Maiden]

WOW!! Impressive Carl!

[Puff]

La Fong: The "Mutha"? of invention !?

[Carl La Fong]

Ahhh..........it's all smoke and mirrors, really.

[Orlando606VetteTrike]

John nicely done.

[Jack]

That is a great little piece!
Did you ever try a different throttle sleeve in the grip? Those things were really popular for the Ninja I had, I rode it for 3 months and didn't know I wasn't getting WOT, then when I found WOT it became an animal. Sold it before I could kill myself on it.

[hogv8]

I rigged a similar deal on my carb to achieve 1/4 turn throttle and guaranteed WOT . Works great .
I Wouldn't be suprised that there are a lot of bikes out there that aren't achieving full WOT . They may think they are but things have just right for true WOT .

[Imzz4]

Me too . Very good idea !!