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FJR Motorcycle Forums
Technical & Mechanical Problems
Caution with Throttle Spring Unwind Mod
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<blockquote data-quote="road runner" data-source="post: 393190" data-attributes="member: 5116"><p>I did the mod & experienced the same thing.(slow return to idle, only when running)</p><p></p><p>Checked for something rubbing & found nothing.</p><p></p><p>I even left grip off and made sure cable routing was OK. The 2 cables were twisted around each other, so I unhooked one and untwisted it so now both run from TB to grip as straight as possible without wrapping around each other. This seemed to make it better while not running, but still have slow return when running.</p><p></p><p>It works great when not running, so I don't think there is a friction problem. It seems to me like there is something vacuum related that is making it slow to return. I never had these TB's apart and do not know all the inner workings of them so I can't say but, it seems like there is a dashpot or similar circuit in there somewhere. In the car world some used it to keep from stalling on quick deccel.</p><p></p><p>Maybe a tech could chime in and confirm or deny this theory.</p><p></p><p>Next time I have tank up I may unhook the cables & try it , that will tell if it's a friction issue.</p><p></p><p>My .02 A.C.</p></blockquote><p></p>
[QUOTE="road runner, post: 393190, member: 5116"] I did the mod & experienced the same thing.(slow return to idle, only when running) Checked for something rubbing & found nothing. I even left grip off and made sure cable routing was OK. The 2 cables were twisted around each other, so I unhooked one and untwisted it so now both run from TB to grip as straight as possible without wrapping around each other. This seemed to make it better while not running, but still have slow return when running. It works great when not running, so I don't think there is a friction problem. It seems to me like there is something vacuum related that is making it slow to return. I never had these TB's apart and do not know all the inner workings of them so I can't say but, it seems like there is a dashpot or similar circuit in there somewhere. In the car world some used it to keep from stalling on quick deccel. Maybe a tech could chime in and confirm or deny this theory. Next time I have tank up I may unhook the cables & try it , that will tell if it's a friction issue. My .02 A.C. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Caution with Throttle Spring Unwind Mod
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