Back fire from pipes

Engine, exhaust & cooling mods or problems. If it has to do with cooling, anything within the crank case, or exhaust, it goes here.
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pappy1118
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Joined: Thu Sep 19, 2013 8:51 pm
I ride: Black '07 vulcan 500 LTD
Location: Canton, Michigan

Back fire from pipes

Postby pappy1118 » Sun Jun 29, 2014 10:17 pm

just started. Only had the bike a few months and dont ride it much but it didnt happen till a week ago. carb prob?
It's easier to ask for forgiveness than permission.

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Triangles
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I ride: '94 Black Cherry Vulcan 500, '06 Candyfire Red Vulcan 500 LTD
Location: Toledo Ohio
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Re: Back fire from pipes

Postby Triangles » Mon Jun 30, 2014 7:13 am

under what conditions?
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pappy1118
Posts: 12
Joined: Thu Sep 19, 2013 8:51 pm
I ride: Black '07 vulcan 500 LTD
Location: Canton, Michigan

Re: Back fire from pipes

Postby pappy1118 » Fri Jul 11, 2014 2:10 am

When accelerating. popping sound and lose of power. I have a small leak in pipe. Gonna try and patch it. Have carb off now and going to clean that. maybe timing?
It's easier to ask for forgiveness than permission.

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Triangles
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Posts: 776
Joined: Sun Dec 27, 2009 10:35 pm
I ride: '94 Black Cherry Vulcan 500, '06 Candyfire Red Vulcan 500 LTD
Location: Toledo Ohio
Contact:

Re: Back fire from pipes

Postby Triangles » Sun Jul 13, 2014 8:09 am

pappy1118 wrote:I have a small leak in pipe. Gonna try and patch it. Have carb off now and going to clean that. maybe timing?

Small leak in what pipe? exhaust pipe? Ignition timing? That is controlled electronically and varies with RPM. Basically it can't be off. I think it's practically impossible for valve timing to be off if you haven't had the timing chain off.

if the popping sound is backfiring thru the carb, I believe that indicates a lean condition. When I let mine sit for more than a few weeks the carb gets gummed up and does this. Severity depends on how long it's been sitting. It corrects itself after riding a while. Supposedly the bike is a little lean from the factory for emissions.
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