exhaust popping while idling ?????????? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 05-30-2014, 03:12 PM Thread Starter
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exhaust popping while idling ??????????

When I start the bike, the left pipe sounds normal while the right is popping, the air/fuel are adjusted right, I just can't figure it out ???????
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post #2 of 11 (permalink) Old 05-30-2014, 03:40 PM
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Does it even out once it warms up some?

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Leave it to me to NOT be fond of something then end up banging it.
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post #3 of 11 (permalink) Old 05-30-2014, 04:15 PM Thread Starter
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no, it does it constantly, I tried to readjust the air/fuel but that didn't work so I sat them back.
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post #4 of 11 (permalink) Old 05-30-2014, 04:39 PM
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Probably a vacuum leak in the popping cylinder. Does it run better with more throttle?
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post #5 of 11 (permalink) Old 05-30-2014, 05:23 PM Thread Starter
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yes when I rev. the bike it does sound better, and when I take it out for a test ride, she does good.
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post #6 of 11 (permalink) Old 05-30-2014, 05:39 PM
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yes when I rev. the bike it does sound better, and when I take it out for a test ride, she does good.
If you still have the goat belly, it could be either cylinder. Probably a 'lean' pop. Check the vacuum ports and the mounting boots first.
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post #7 of 11 (permalink) Old 06-01-2014, 10:18 AM Thread Starter
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Thanx every one for the help, we've cut down the popping quite a bit, but I have this question ? my vn has a bolt in the carb. hose that allows it to breath from the p/o and my vulcan runs great, is this a good thing or bad ?
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post #8 of 11 (permalink) Old 06-01-2014, 11:40 AM
..have a vulcan good day!
 
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Quote:
Originally Posted by rkama354 View Post
Thanx every one for the help, we've cut down the popping quite a bit, but I have this question ? my vn has a bolt in the carb. hose that allows it to breath from the p/o and my vulcan runs great, is this a good thing or bad ?
Which hose.... A pic of the hose would be very helpful here.....



Seems like the Dead Air hose...follow instructions offered .


'86 VN750 13,700 mi -Stock
-Purchased 2008 w/8800mi
Replaced ALL Cables . Kuryakyn LED Voltmeter
SilverStar Ultra 9003/HB2 H4 Headlamp, Jardine Fwd Controls,
Iridiums DPR7EIX-9 & Wires, Tuxedo Mod, Coil Mod, P/U Sensor Mod, Fork Seals,
Splines Lubed - 11/4/2012 - MF AGM Battery
Additional Flashing LED Brake Light on Trunk
Dampers went out @ 13+K !
After TOC MCCT's..... so amazingly quiet I discovered a rattling heat shield on my stock exhaust !
...have a vulcan good day!

Last edited by WilliamTech; 06-01-2014 at 06:38 PM.
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post #9 of 11 (permalink) Old 06-01-2014, 12:23 PM
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Vent tube I believe. Sounds like he's saying *in the hose that allows the carb to breathe

In which case, I recommend attaching that hose to the nipple on the underside of the gas tank, where the fuel level sensor is.
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post #10 of 11 (permalink) Old 06-01-2014, 12:43 PM Thread Starter
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The hose that's on top of the carbs and goes to the back of the right air box
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