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Quicker throttle...

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Posted by: thomas123

Is there anyone out there that makes a quicker throttle? Ie, right now it takes aprox. 90 degrees of rotation to fully open the carb, if I get get that to say 60-65 degrees to full open I'd be a happy camper I don't care how it does it, or if it makes it a bit harder to turn, as long as it works...

Thanks


Posted by: NO HAND

Jim at racers' edge used to make a cable with a inline reducer. It worked awesome on my 00CR125. I'll have to look up to find the phone number if you are interrested. It cuts the travel in half.


Posted by: NO HAND

Here is an old thread that may have the info you need.
http://www.dirtrider.net/forums3/sh...eferrerid=18937


Posted by: thomas123

Thanks!


Posted by: bedell99

Hey No Hand are you referring to the quick twist that Jim Bennet from Racer Edge in colorado. I rode a 125 with that it works very well but iit s horrible for 250's. It actually makes full throttle about a 1/4 turn. It can get you in trouble real quick on larger bikes. I remember talking to him about it and he said the reason why he couldn't mass market it was due to the insurance liability if someone cracked there throttle too quick. Ha. Imagine that, bikes with too much power.

Erik


Posted by: NO HAND

Hey, bedell99, you met that guy? His cable is such a neat invention.
Quote:
Originally Posted by bedell99
...I remember talking to him about it and he said the reason why he couldn't mass market it was due to the insurance liability if someone cracked there throttle too quick...
lol... man I still have that cable lying around and wonder what it would be like on my 250. You're so right someone has to be suicidal to install that cable on a bike with snap such as a YZ or a 500. As well schedule an appointment with the dentist at the same time...


Posted by: 147leeman

Anyone know of another way to get a quicker throttle? I have a lingering wrist injury that severly limits my wrist range of motion. I used to have Jim's cables, but have since sold those bikes and as you've said, he can't make them anymore....ideas on how he made them?

I remember he had a "Quixel" installed, what exactly is this?


Posted by: NO HAND

Quote:
Originally Posted by 147leeman
...and as you've said, he can't make them anymore...
Are you sure? I didn't know it was discontinued. Man that is a bad thing. Perhaps he just needs a little more persuasion..


Posted by: bedell99

Hey No Hand, Actually I was roomates with his partner Brandon. Racer Edge is a pretty good hop up shop here in colorado, they are a bit pricey but do quality work. As for the quick twist for all the people who wondering it was actually the cable that did all the work not the throttle housing. A small grey box was spliced in the cable that actually split the cable into 2 cables. Great idea and it worked perfectly. I know for a fact that they quit making them, but I know they still have a couple laying around the shop. The real question is if Jim/Brandon are willing to part ways with the remaining trick cables and if they are for how much.

Erik


Posted by: bclapham

well that sucks. No Hand, can we get some pictures of yours..... I can always get most things made up!


Posted by: 147leeman

That would be terrific if someone could post pics of that cable. I wish I would've kept mine. Anybody help with pics so bclapham and I can make one up?


Posted by: NO HAND

Yep sure I'll work on that asap. I'm just back from a laser eye surgery so couldn't read drn since last thursday.


Posted by: NO HAND

At last!! sory for the delay, it's my first time posting pictures and it took me a while to figure out.


Posted by: bclapham

i wonder whats inside, LOL- right now, i am thinking of modding an aluminium throttle tube- just welding some extra metal on there and then cleaning it up with a file. i recon just an extra 1mm of diameter should help quite a bit


well, i just did the math and it wont make much difference.

No Hand, we need to see inside this thing!!! i think i will call that shop though.


Posted by: marcusgunby

If you ever saw a easy clutch you will inderstand how it works, it has a pivot point a arm-you trade leverage for throw or vice versa. Hard to make one yourself that would be useable and safe however.


Posted by: bclapham

you mean its not magic? i understand how it works, i just wanted to get an idea of the internal specs. i might see if i can run an easy clutch in reverse! but yes, botch jobs on throttle cables is not good.


Posted by: marcusgunby

LOL bruce i know you understand the setup, Im a bit worried why they stopped making them-maybe they were worried it has a possibility of the rider going wide open unintensionally and them being sued?I do remember years ago people ran a KX80 throttle as it had the same effect?


Posted by: NO HAND

Guys, I feel cheap to not be able to tear it open but it is sealed, probably with super glue. I'd have to use the hacksaw... If someone knows or finds where these gray boxes comes from, I would be happy to know as I got a couple friends who would be happy to have one of these magic cables.


Posted by: bclapham

I just called racers edge and spoke to the Guy, a very nice chap. Sadly, he cannot get insurance to sell this product so is not prepared to try and go it alone for fear of lawsuits. It quite sad since he said he had put around 3 years work into the little gadget and had a patent and everything.


Posted by: 147leeman

bclapham, I went through the same idea of enlarging the working radius of the throttle tube where the cable is attached, but you're right, hardly any difference. I do wonder if I could get an older KX80 throttle assembly...but that would have to be one big throttle tube.

Thanks for the pics NO HAND. Is there any name on the box? Is this leverage box a part made by Jim? Or is it made by a manufacturer and assembled by Jim?

If you're not using it, then by all means break that thing open! We all understand what it does, but the small size and quality of parts/assembly is what interests me.

About the easy clutch in reverse,

What are some things to consider with the easy clutch system?
If I would take out the cable coming out of the easy clutch (seperate shorty cable attached to the long end of the leverage bar) and put in the throttle end of the throttle cable, then I could put the shorty cable on the shorter end of the leverage arm and into the throttle assembly correct? This would have the easy clutch system up near the throttle, and create a harder pull but take up more cable per turn.

If I made sure all the cable ends were securely attached would this be too much of a botched up system? Sorry for rambling but I really need to reduce the turn of the throttle!


Posted by: 147leeman

bump


Posted by: NO HAND

Leeman, there is no name on the box. Everything looks like it is super glued together, even the cable ends to the box. I know the cables are from motion-pro. I know Jim was assembling the thing himself; that's what he told me on the phone. The gray boxes have to come from somewhere though. It came along with softer springs.


Posted by: NO HAND

110, I had the v-force and it is nothing compared to what the quixxel cable did.


Posted by: bclapham

thats some cool stuff right there!

which throttle bodies do the tubes fit? the motionpro vortex looks exactly the same as the OEM YZ and RM throttles- they have a ratio of 1.90, eg 95 deg moves the cable 50mm (72 deg on a 38mm carb).

so how much difference would the fast version make on this setup?


Posted by: bclapham

i forgot to mention, if you want to send me one for a reduced price (or free) i would be happy to give it a review and post the results here. heck, i could even hand it onto on of the MXA crew and get it in a magazine test.

bclapham@scripps.edu

thanks

Bruce



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