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Jan 3rd, 2005, 01:58 AM
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#1 | | Very Active Poster 50+
Join Date: Aug 2004 Location: McKinney, Texas
Posts: 54 Model: 2005 Road King Classic Occupation: Business Owner
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A little concerned .... I installed V&H Ovals, AN Big Sucker and a Power Commander on my 05 Road King about 4 months ago. Bike runs great but I get backfiring when shifting up and when down shifting. Thoughts? 
Mark | 
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Jan 3rd, 2005, 05:37 PM
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#2 | | More than 100 posts!
Join Date: Apr 2004 Location: Rock Springs, Wyoming
Posts: 111 Interests: Riding the Road King. Occupation: Hard Rock Miner.
| More than likely your bike is running a bit on the lean side. I have a 2004 Road King Classic and have basically the same set up as you have but I'm running with the 95ci set-up. I had the bike re-mapped and I still have some popping on de-excelleration. I'm don't think you can get rid of the popping all together. Ride Safe, David. | |
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Jan 3rd, 2005, 07:18 PM
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#3 | | Rookie 10+ posts
Join Date: Dec 2004 Location: SouthEast PA
Posts: 32
| I run the ovals on my 2003 FLHT with a 95 kit, SE heads, and a 211 cam and get no backfiring at any speed or deceleration. It can be adjusted out, it just takes time to find the right combo. | |
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Jan 5th, 2005, 09:36 PM
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#4 | | Very Active Poster 50+
Join Date: Apr 2004 Location: Tracy, CA
Posts: 83 Interests: Riding and Wrenching Occupation: Harley Service Technician
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You are running lean. The best cure for this is to have the bike dyno tuned by a quality tuner so your fuel and timing meet all of the requirements of your engine combination. | |
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Jan 12th, 2005, 10:13 AM
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#5 | | Newbie
Join Date: Aug 2004
Posts: 6
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Can someone explain the difference in sound of a lean backfire. On my 2003 FLHRCI that is stage 1, i get a "plop,plop" when coasting, but not a "BANG" ,which i thought was backfiring.
Hope my sound effects helped! | |
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Jan 12th, 2005, 01:02 PM
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#6 | | Administrator Has posted 500+
Join Date: Mar 2004 Location: Tucson AZ
Posts: 1,552 Interests: Fishing, wood working, flipping off Fred Fox Occupation: Founder of Bike Talk....retired and lovin' it
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Originally Posted by PoweredByCoors Can someone explain the difference in sound of a lean backfire. On my 2003 FLHRCI that is stage 1, i get a "plop,plop" when coasting, but not a "BANG" ,which i thought was backfiring.
Hope my sound effects helped! | Lean pop is a muffled sound usually. Sounds literally like pop-pop-pop. A backfire traditionally is out the intake and is a loud bang and totally different in sound from a lean pop. Sometimes you can get backfiring in the exhaust due to excessively rich mixture or an air leak in the system. The rich mixture ignites the remaining air with a loud bang as it is an explosion. A leak allows fresh air to be drawn in which ignites the remaining combustibles.
Think of it this way. If it is a muted popping noise, and no one looks at you strangely, it's lean pop. If it is a loud banging noise and the cop next to you flinches, it probably is a backfire.  | 
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Jan 18th, 2005, 03:12 PM
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#7 | | Newbie
Join Date: Jan 2005
Posts: 2
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Possibly antiriversion cones. | |
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