Choke stuck open? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 15 (permalink) Old 09-14-2017, 10:51 PM Thread Starter
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Choke stuck open?

So I've noticed that my bike idles high when hot, and one of the things I noticed was that the choke plungers, while can pull out all the way, do not go all the way back in when I push the choke lever forward. I can push them in further with my hand. One of the small pins in the fork also seems a tad bent. Should I adjust or lubricate the choke cable, or is there another repair I should perform?
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post #2 of 15 (permalink) Old 09-14-2017, 11:25 PM
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I would try the cable adjustment, but it may be the cable can't push the bent pin.

This is probably causing those fast idle issues.

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post #3 of 15 (permalink) Old 09-15-2017, 04:47 AM Thread Starter
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Would replacing the pin require the entire carburetor apart, or is it doable on the bike?

Also, is there a guide on adjusting the choke cable anywhere?

Last edited by SergheiS; 09-15-2017 at 06:01 AM.
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post #4 of 15 (permalink) Old 09-15-2017, 02:45 PM
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Sounds like you need to lubricate everything......

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post #5 of 15 (permalink) Old 09-15-2017, 06:00 PM Thread Starter
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Ok so.... This is the choke plunger, as I'm sure everyone knows, this is the one (actually, both need to be pushed, but one pushes both down) I have to push in. However, I just noticed, I can push it in more with my hand, and it comes up slowly from the very bottom. It also comes right up when I give the bike some throttle. Is this normal, or what can I be looking at?

I did dismantle my left hand grip when putting new handlebars, so I don't know what I could have messed up. And if you look, you can see the part between the forks has an ever slight bend. So what should be done? Lubricate the springs, loose the cable (but how?) Replace the choke parts?
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post #6 of 15 (permalink) Old 09-15-2017, 06:09 PM
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I feel like a picture could be helpful here...

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post #7 of 15 (permalink) Old 09-15-2017, 08:55 PM Thread Starter
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Quote:
Originally Posted by wmdaricthompson View Post
I feel like a picture could be helpful here...
My apologies....didn't seem to post...let's try this again....

https://drive.google.com/file/d/0B1L...w?usp=drivesdk



Won't let me post the pic...can only link...
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post #8 of 15 (permalink) Old 09-15-2017, 09:55 PM
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post #9 of 15 (permalink) Old 09-15-2017, 09:55 PM
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Quote:
Originally Posted by SergheiS View Post
My apologies....didn't seem to post...let's try this again....

https://drive.google.com/file/d/0B1L...w?usp=drivesdk



Won't let me post the pic...can only link...
Pin looks pretty rusty. When you have to push it down, is the lever still touching the pin? If not, there's probably too much resistance in the pin itself (rust).

Which side is that pic from? Vacuum line looks kind of swelled and deformed at the bend. Unless that's all shadows. Is the petcock vac line dry inside?

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post #10 of 15 (permalink) Old 09-16-2017, 09:15 AM
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Quote:
Originally Posted by SergheiS View Post
My apologies....didn't seem to post...let's try this again....

https://drive.google.com/file/d/0B1L...w?usp=drivesdk



Won't let me post the pic...can only link...
Yes, looks rusty. As I said, you need to lubricate EVERYTHING . This will either fix it, or eliminate the other possible causes. Use some WD40 or penetrating oil on the plunger, cable lube on the cable, and white lithium grease on the levers.
Make sure the cable slides smoothly. Work the choke a few dozen times and hit it with more oil.
If the choke isn't completely closing, it would simply be richening your mixture, as it's not a "choke" but simply a fuel enrichment device.

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