Idle adjustment knob - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 12 (permalink) Old 04-21-2013, 05:23 PM Thread Starter
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Idle adjustment knob

Ok, a few months ago, I had the balancers changed out. Since getting the bike back , the idle adjustment only turns so far both directions. The idle is sitting around 1200 to 1300 rpms and I cannot drop it further. I can only increase it a few hundred rpms before it stops again. I know it used to have a much broader range than this. Where should I begin? Thanks.
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post #2 of 12 (permalink) Old 04-21-2013, 05:29 PM
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Sounds like the linkage wasnt hooked back up right...you should visibly see the acctuators moving when you turn the knob.



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post #3 of 12 (permalink) Old 04-21-2013, 11:15 PM Thread Starter
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Quote:
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Sounds like the linkage wasnt hooked back up right...you should visibly see the acctuators moving when you turn the knob.
Wolfie, all I saw was the terminal end rotate abit. It pushed the throttle linkage only a couple hairs. So what I am looking for? Will this involve removing the carbs?

Thanks!
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post #4 of 12 (permalink) Old 04-22-2013, 07:08 PM
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nahh...its all cable and linkage....pop the cable back off and grease the snot outta it (soak it in kero or diesel overnight first)...they get that way ....check the monting tab where the knob mounts by the carb too. Shouldnt be bent...youre trying to get the straightest line possible from A to B.
I couldnt even turn mine when I first got it....took it off, soaked it, lubed it....fine now...
....at worst......replace the cable...cant be too much...



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post #5 of 12 (permalink) Old 04-25-2013, 04:41 PM Thread Starter
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Quote:
Originally Posted by Wolfie View Post
nahh...its all cable and linkage....pop the cable back off and grease the snot outta it (soak it in kero or diesel overnight first)...they get that way ....check the monting tab where the knob mounts by the carb too. Shouldnt be bent...youre trying to get the straightest line possible from A to B.
I couldnt even turn mine when I first got it....took it off, soaked it, lubed it....fine now...
....at worst......replace the cable...cant be too much...
Sounds simple enough! Thanks!

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post #6 of 12 (permalink) Old 04-26-2013, 12:22 PM Thread Starter
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I got to looking at the idle adjuster a bit more and it appears to be pitched between the rear jug carb and the jug itself. I'll be pulling the carbs off soon; so, I'll be able to see, then, what the real problem is.

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post #7 of 12 (permalink) Old 04-26-2013, 12:33 PM
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Try not to break that idle knob assembly, I did and cost $80 just for that! Sounds like the bracket is bent or something. Good luck!!

04-3,200 miles bought July 2011 with 928 miles. Loaded with acessories to many to list here, see my albums for more details! I also make a custom tank bib specific for the 750 if anyone is interested, ck my albums for some pics.
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post #8 of 12 (permalink) Old 04-26-2013, 12:43 PM Thread Starter
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Quote:
Originally Posted by romeobravo172 View Post
Try not to break that idle knob assembly, I did and cost $80 just for that! Sounds like the bracket is bent or something. Good luck!!
Yeah, I want to avoid that, too! Although, if that happens, I'll find a screw to fit underneath and adjust that way. All I know is that before it went to the shop, the adjuster worked fine; after the shop, I don't even get 1 full turn out of it.

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post #9 of 12 (permalink) Old 04-26-2013, 11:36 PM
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Cool

Did not have one when i bought the bike, could'nt find a used one so. mother of inventions, a piece of old hard vac. hose, garila glue it to the screw at the carb, comes out just inside of the left K&N under the tank, works great,
cost-nothing
Stay Safe

Many many mod's
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post #10 of 12 (permalink) Old 04-27-2013, 02:14 PM Thread Starter
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Been looking at this thing some more. It appears to be slightly bent near the throttle stop. I'll can watch the tube twist and it doesn't stay straight. I can turn it in maybe 1/8th a turn and it stops. Same amount backing out. It simply stops. I even dismounted the knob end from carb and that didn't change anything. It's either binding on the carb boot or something around there or it's bent and catch on something while I turn it. IS there a way to remove it w/o pull the carbs off the bike?

Thanks.

I only understand what I don't understand.
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