Carb noise/twitch... - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 7 (permalink) Old 08-23-2012, 06:25 PM Thread Starter
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Carb noise/twitch...

Ok, so my bike is making a really weird sound. I believe(almost certain) it is coming from the carbs. Randomly, and rather often it make a sound that I can only describe as like an air valve, just a little pfft... I studied the bike and noticed the carb seems almost to twitch every time it happens.... I took a video and it isn't super clear on it. But I can tell you it happens at the 23 second mark and a few times before that.... Any help would be great.

http://www.youtube.com/watch?v=6H5vESUSPVc

"Pain is weakness leaving my mouth! *&%^$ that hurt!"

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post #2 of 7 (permalink) Old 08-23-2012, 07:20 PM
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Quote:
Originally Posted by Chris32250 View Post
Ok, so my bike is making a really weird sound. I believe(almost certain) it is coming from the carbs. Randomly, and rather often it make a sound that I can only describe as like an air valve, just a little pfft... I studied the bike and noticed the carb seems almost to twitch every time it happens.... I took a video and it isn't super clear on it. But I can tell you it happens at the 23 second mark and a few times before that.... Any help would be great.

http://www.youtube.com/watch?v=6H5vESUSPVc
Your choke plunger is not seating all the way, so your choke is still engaged.

Really clear at 28s. That may not be your issue, but it is an issue. You can use your finger to get it to seat, and some use WD40 or white lithium to lubricate the choke slide.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350

Last edited by thtanner; 08-23-2012 at 07:25 PM.
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post #3 of 7 (permalink) Old 08-23-2012, 07:33 PM Thread Starter
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I guess it was a case being to close to the problem. that fixed it. so thanks a ton. But... I bought a choke cable from RomeoBravo, But I can't seem to get it mounted correctly. I think it is on the carb properly, but there isn't enough tension on it to pull.... is it supposed to mount on something near the carb?

"Pain is weakness leaving my mouth! *&%^$ that hurt!"

Promo code for 10% off at leatherup.com..... 55634

===2001 Vn750====
New Chrome agm battery
Ears shaved
Coastered
Sportster pipes
R/R relocated
12v adapter installed
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post #4 of 7 (permalink) Old 08-23-2012, 07:45 PM
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Originally Posted by Chris32250 View Post
I guess it was a case being to close to the problem. that fixed it. so thanks a ton. But... I bought a choke cable from RomeoBravo, But I can't seem to get it mounted correctly. I think it is on the carb properly, but there isn't enough tension on it to pull.... is it supposed to mount on something near the carb?





1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #5 of 7 (permalink) Old 08-23-2012, 09:24 PM
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Dosn't the choke cable actually push the plungers in, not pull out?

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 #6 of 7 (permalink) Old 08-23-2012, 09:51 PM
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Originally Posted by romeobravo172 View Post
Dosn't the choke cable actually push the plungers in, not pull out?
It pulls them out. In is closed, out is open.

1986 Kawasaki Vulcan 750
NGK Iridium Plugs #7803/DPR7EIX-9
Duralast Gold ETX15 AGM Battery
Coastered & Shaved
TOC MCCTs
Metzeler ME880 [110/90-19, 170/80-15]
Balance Dampers Replaced
Tuxedo Mod
Rebuilt Forks w/ Progressive Springs
V&H Cruzers
VN750.com Grill Cover
Meanstreak Seat
Emgo 23-92411 Handlebars
MOSFET FH012AA R/R


1990 Kawasaki Vulcan 750

1998 Honda VFR800 FI

2014 Honda VFR800F

1989 Pontiac Firebird Formula 350
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post #7 of 7 (permalink) Old 08-23-2012, 10:19 PM
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Hey, I learned something today!! Thanks---

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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