Propipe popping ....

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Feb 19, 2012 | 06:50 PM

ral819

Thread Starter

Tourer

Joined: Jun 2010

Posts: 266

Likes: 14

From: Illinois

Propipe popping ....

Sorry but, I'm at my wits end. I have a 2011 Streetglide 103 with a stage 1 consisting of a SE air breather, SEPST, and a V&H Chrome Propipe. It has been Dyno'd. It runs great but on throttle up and then decel, I get an occasional backfire... Or, on shifting, I get an occasional backfire. Whats up ? Is it Temperature ? I had it Dyno'd in the 50 degree range. I noticed it occurs on the engine being warmed up, not cold... Is this the nature of a Propipe. If it is they can have it back. Any advice would be greatly appreciated...

Feb 19, 2012 | 07:06 PM

Lowcountry Joe

Elite HDF Member

Joined: Sep 2007

Posts: 4,928

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From: Near Myrtle Beach, SC

Make sure you have zero exhaust leaks in the exhaust system. An easy way to check is with some cigar smoke. Leaks cause popping. If the exhaust system is airtight, then it's your tune.

Feb 19, 2012 | 08:02 PM

Pelonz

Stellar HDF Member

Joined: Jan 2005

Posts: 2,669

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From: SoCal - 661

I had popping with the stg1 similar to what you describe but after adding cams and then dyno tuning it's gone.

Feb 19, 2012 | 08:34 PM

djl

HDF Community Team

Joined: Jun 2006

Posts: 12,774

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From: san antonio

Quote:

Originally Posted by Lowcountry Joe

Make sure you have zero exhaust leaks in the exhaust system. An easy way to check is with some cigar smoke. Leaks cause popping. If the exhaust system is airtight, then it's your tune.

+1. Not the characteristic of the ProPipe; my brother runs one on the 95" we built for his '05 FXST; it's probably the best pipe for the money available now. Pull the pipes, install some SE SS exhaust gaskets, reintall pipes. Pull the muffler and reinstall with some high temp RTV silicone; sometimes they leak at that joint. Like Lowcountry says, if the exhaust system is air tight, most likely the tune.

Check for intake leaks as well.

Feb 19, 2012 | 08:34 PM

ral819

Thread Starter

Tourer

Joined: Jun 2010

Posts: 266

Likes: 14

From: Illinois

I would love cams some day but, I don't want to add cams just to get rid of the popping... Was there something else that affected your bike that made it pop ?