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Twin throttle cables; your vote

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I haven't worked out yet why some bikes have twin throttle cables or if there is a pattern as to what bikes have them and what bikes have singles.

So;

Your vote;

Twin or single and why.

I think i would go with single = less weight and less to go wrong.

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Lazi man is on it for the most part.

2nd cable is a safety measure. A 4S idle vacuum is very strong. So the added return of the 2nd cable is there.

Sure, a single cable is lighter but just skip a burrito instead. Less to go wrong, assuming the throttle does not stick, then much more to possibly go wrong. Sure, you most likely have a kill button but that takes 1/2 second to realize and press. 1/2 second is a long time in mid air.

I have not had a throttle cable issue since I was nine. If I can run a return cable, I do. Proper maintenance is not a big deal.

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As mentioned above the 2nd cable allows the closing of the carb slide by turning the throttle closed (one cable pulls the carb slide open and one pulls the carb slide closed).

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+1, as William said. If I'd had a 2 cable system on my 2 stroke several years ago, I wouldn't have crashed from a stuck WOT and broken my back.

If you go with a single cable on a 4 stroke, you might want a powerful throttle return spring.

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safety, probably--maybe dot required? my 02 husaberg came with a Dellorto carb with only one cable. have ran an fcr carb with one cable testing--ran fine.

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Can't be a DOT requirement, none of my street only bikes have a twin cable.

My vote if I were a manufacturer, twin cables, you get twice the profits out of the same repair.

My vote if I were not a manufacturer (which I'm not), single cable with a strong return spring, easier to R&R and cheaper as you typically do not buy new return springs.

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removed 2nd cable from my KTM its just extra weight to have to hold open. Been riding for 45 years have never had a trottle stick open, if I did I would just pull in the clutch.

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I can deal with the extra weight of two cables over having a crash,i have known it to happen to many times to take the risk of it sticking.(The owner of our bike shop hit a tree,i think he was on a yz 490,and the other guy at the shop had it happen and took a face plant into the pavement) So i say two cables.

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Come to think of it:

All my dirt/dual sport machines with a butterfly carb have dual cables, all the slides have a single. The street-only machines with butterfly carbs are single.

Are butterfly carbs more prone to sticking in a dirt environment?

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they are as hard as h*ll to figure out, but after you do it once you are a pro!

I agree, I cant stand the dual throttle cables... SOOO confusing!! :thumbsup:

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Come to think of it:

All my dirt/dual sport machines with a butterfly carb have dual cables, all the slides have a single. The street-only machines with butterfly carbs are single.

Are butterfly carbs more prone to sticking in a dirt environment?

i think thats just a fluke (i didnt know they still used butterlies on bikes) all of ours are dual cable slides except the 2t

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If you want one that's really interesting, my XT550 has a slide on the left carb and a butterfly on the right! Dual cables.

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