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Buell Motorcycle Forum » Buell RACING & More » Racing - Circuit/Road Racing » Archive through December 19, 2008 » Quicker Throttle for 1125R « Previous Next »

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Duggram
Posted on Thursday, December 11, 2008 - 08:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Where can I get a quicker throttle for my 1125R?
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Eboos
Posted on Thursday, December 11, 2008 - 08:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I got one from Active. You can get it from GP Tech. First you will need to measure your throttle cables, then select the closest size that they offer. 900mm will probably be the best fit. You will need to replace your run/stop/start switch. I used one from a 08 CBR600RR. The Active throttle gives you several different cam options. I went with the largest one (#42 if I remember right) and that gives me about 1/6th turn to WFO.

Check out GP Techs website. Don't get the slim one, there is too much friction.

(Message edited by eboos on December 11, 2008)
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Fresnobuell
Posted on Thursday, December 11, 2008 - 03:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Questions: Why do we need to replace our run/stop/start switch? And with WFO at 1/6 throttle turn, how much does it affect "regular" throttle openings and riding?
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Eboos
Posted on Thursday, December 11, 2008 - 03:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You would only need to replace it if the increased width of the throttle assembly and the stock switch do not allow you to position the brake lever properly.

As long as you have good throttle control, the 1/6th turn will not make street riding too sketchy.
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Fresnobuell
Posted on Thursday, December 11, 2008 - 08:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How much wider are we talking about? Obviously on the 1125r, a replacement switch is called for?
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Eboos
Posted on Thursday, December 11, 2008 - 08:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yes, you are looking at around 1/2" - 3/4" wide for the throttle. You would need to replace the switch or else the brake lever will hit the throttle and not give you full brake lever travel.
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Duggram
Posted on Thursday, December 11, 2008 - 08:21 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the input. If you go to the GP Tech Web site you will see an optional switch assembly they offer. Any chance it would work?
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Eboos
Posted on Thursday, December 11, 2008 - 11:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was told that it was pretty wide. I choose the CBR switch because it was very narrow.
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Fresnobuell
Posted on Friday, December 12, 2008 - 05:42 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So you went to another vendor to obtain the CBR switch? What king of $$$ are we talking here? I have no idea what a switch of this type might cost. Thanks for your help.
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Eboos
Posted on Friday, December 12, 2008 - 06:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I got the switch at a local shop. I think that I only paid about $20-$25 for it. This was dealer cost, it's probably around $40 retail.

It doesn't immediately plug right in, you need to figure out which wire does what, then make a harness adapter and add about 6 inches of wire. It's a pretty fun project, and an easy way to get started with working on wiring.

(Message edited by eboos on December 12, 2008)
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Fresnobuell
Posted on Friday, December 12, 2008 - 03:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Eboos, you got pics of your throttle setup? Also, it would be nice to see the amount of movement it takes to go from neutral throttle to WFO. Thanks.
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Eboos
Posted on Friday, December 12, 2008 - 09:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'll come up with something for you. Give me about a day, I need to borrow a camera.
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Eboos
Posted on Sunday, December 14, 2008 - 09:15 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Here's a shot of the throttle wide open. The shot is pretty bad, but I made some marks at 1/4 turn, and the mark at the throttle sleeve shows how much sooner it is fully open.




Here is another photo of the throttle, switch and brake lever just to get an idea of fitment.




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Fresnobuell
Posted on Monday, December 15, 2008 - 03:52 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks Eboos.
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Eweaver
Posted on Monday, December 15, 2008 - 10:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Found this on the web, it might work: http://www.brgracing.com/throttle.html

This link has a DIY version that seems pretty simple, look for the May 2006 post part way down the page: http://www.kolumbus.fi/koivupiha/sp1.htm

There is quite a bit of DIY quick turn throttle info on the web. I will probably try the zip tie version just for fun.
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Fresnobuell
Posted on Tuesday, December 16, 2008 - 12:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Sweet info. I might try it too this weekend. Let me know how it goes with you and I'll do the same.
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Eweaver
Posted on Tuesday, December 16, 2008 - 05:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I don't know if this helps or not, but... I pushed my master cylinder to the left a bit to change the way the brake lever feels. Does this open up enough room so you can retain the stock switch housing when adding an aftermarket quick throttle?
switch housing
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Eboos
Posted on Tuesday, December 16, 2008 - 07:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It couldn't hurt to try it first.
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Fresnobuell
Posted on Tuesday, December 16, 2008 - 10:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Took a looksee at the throttle assembly....don't think we can do the ramped plastic piece unfortunately. Our throttle cam is not in a position to add the plastic piece. Hard to explain but it comes out from a protected area as you spin the throttle. Time for plan B.
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Fresnobuell
Posted on Tuesday, December 16, 2008 - 11:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Eboos...how much extra room do we need exactly to fit this quick throttle on the bar? Looks to me from Eric's pic, we might be able to squeeze it all in w/o changing the switch housing.
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Eboos
Posted on Wednesday, December 17, 2008 - 04:53 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It's only a little over a half inch wide I think, but I would just be concerned about the brake lever hitting it under hard braking, or if adjusted for short reach.
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Fresnobuell
Posted on Wednesday, December 17, 2008 - 03:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oh good call. I'll have to check that out tonight. Thanks again.
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Duggram
Posted on Wednesday, December 17, 2008 - 05:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Eboos, did you notice the handle switch kit offered by Active? If it makes things simple I'd be all for it.
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Eboos
Posted on Wednesday, December 17, 2008 - 06:05 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It was recommended against to me by GP Tech. None of these switches will simply plug in, you need to figure out what wire does what and make a harness adapter. It really is not hard.
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Eboos
Posted on Wednesday, December 17, 2008 - 06:08 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have to borrow a camera again anyway. If I remember, I will post a photo of the wiring adapter. If this is your first time messing around with wiring, this will be a fun project to get your feet wet with.
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