| Author | Message | ||
     Rayycc1 |
my throttle shaft broke last summer...and the plastic bushings in the throttle body that the shaft runs thru kinda got chewed up...that..and by the time i figured out what had happened...the throttle shaft had already popped out the front side of the body...so i never got to see how the return spring was seated and oriented' I somehow got it all back together but its never been right since...it runs fine when riding...but the idle is always hunting...moving just a little up and down. I Know the plate is exactly centered on the new shaft...but i'm not sure if maybe theres a little play because of the busted up plastic bushing thats making the idle hunt or what. Also...before the new shaft...my throttle always snapped shut on its own...and now you have to give it a little help..i did see a strand on the bottom cable by the throttle body was broken...so that could be the cause...but i'm really not 100% that i got the spring on right when i put the new shaft in. I have searched for diagrams or drawings and pics of how the throttle body shaft spring should be to no avail ...i was hoping someone here might have a pic...and an idea on what to do for replacement bushings? The bike runs like a raped ape just off idle to redline...no sputtering or anything...so i'e been riding it like this until i figure out what to do. also....are throttle cables available? has anyone changed theirs or made their own? Thanks in advance for the help...just want to get these few issues squared away | ||
| Tootal |
Hey Ray, sorry to hear of your problem. I put new cables on mine and to help with things I raised my coil up using spacers so the plug wire went between the throttle cables. I also put a piece of hose around the idle adjustment cable to protect it from rubbing the rocker cover. I'll put a shaft in my test throttle body and put the spring on it and take a picture. | ||
| Tootal |
Well, my apologies. I don't have the spring here. Someone I sold a shaft to had lost their spring so I took mine to work and made one out of piano wire but I must have left the sample one at work! I'll see what else I can do. | ||
| Rayycc1 |
That would've great thanks...I also used spacers for the coil and relocated the idle cable | ||
| Tootal |
Ray, if you have a shop manual you can go to page 4-118. There is an exploded view of the throttle body. On the next page in Figure 4-99 it shows the hook of the spring wrapped around the cable disk just above center. It's not a good picture but you can see it. I'll take a picture and photoshop it to clean it up.  | ||
| Rayycc1 |
Yeah...I'm not sure that mines like that...I'm out right now but I'll check it when I get home...thanks for the help | ||
| Etennuly |
I ran across the same problem on an '08 one time. A PO had messed with the throttle cable cam for what ever reason and stripped the threads on the shaft. While they messed with it they went ahead and got the spring all disoriented and bent to where it did the same thing as yours was doing. It would not close the throttle. Ya can't buy the spring alone. Unless someone else has found a way. It was part of the throttle body assembly according to HD. After rethreading the shaft to the next smaller size, I worked for several hours figuring out and making the spring fit and work properly. The choice was hard to turn throttle with proper idle tension or proper throttle and no idle tension. The plastic sleeve face was messed up a bit and that spring's coil wanted to pull one loop down into the gap pinching it. So I machined a little washer to take the place of the messed up sleeve. PITA but it worked. |
