Whats too rich
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Joined: Mar 2008
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From: Vermont
Whats too rich
Looking for some comparisons. When I first purchased my 2010 Street Glide I did a simple stage 1 consisting of a 2-1 Pro pipe, free breathing Screaming Eagle/Fuel Moto breather and a Fuel Moto PCV with canned Fuel Moto map. Bike ran good but I didn't like the Pro Pipe. This winter I switched to a Cobra Powerport head pipe and Fuel Moto Dyno tune mufflers. I sent my PCV back to Fuel Moto and they very graciously retuned it for the new pipes. It runs super, however I have noticed that the mufflers are definately black just inside. It smells a little rich as well, but again, it runs great. I did not have the black richer look inside the Pro Pipe. So my question is whats considered too rich on the newer touring bikes?
Last edited by Rickr01; May 21, 2012 at 05:41 PM.
Road Captain
Joined: Jan 2009
Posts: 739
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From: St. Louis
I wouldn't put too much faith in using the exhaust pipe color as an indicator of it being rich or lean. If you're really concerned either have it run on a dyno and get the A/F ratio monitered, or buy the auto tune setup for the PC V. Either way it'll cost you 3 to 4 hundred dollars.
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Joined: May 2008
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From: Ashland Ohio
Too rich is anything under 40mpg on your set up. I ride a 120r that consistently beats 40mpg... but I use a real tuner and not a piggy back with a 'canned' map. Canned maps always are set up rich as a safety measure. The black isn't my concern, but smelling gas really is.
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Joined: Mar 2008
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From: Vermont
Too rich is anything under 40mpg on your set up. I ride a 120r that consistently beats 40mpg... but I use a real tuner and not a piggy back with a 'canned' map. Canned maps always are set up rich as a safety measure. The black isn't my concern, but smelling gas really is.
Cruiser
Joined: Jan 2012
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From: Pa
Too rich is anything under 40mpg on your set up. I ride a 120r that consistently beats 40mpg... but I use a real tuner and not a piggy back with a 'canned' map. Canned maps always are set up rich as a safety measure. The black isn't my concern, but smelling gas really is.
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From: Vermont
I didn't think that a spark plug reading on these newer "sensor everything" bikes was a good indicator?
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Road Warrior
Joined: Oct 2007
Posts: 1,468
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From: South Carolina
here's what I was told last century when my bikes didnt have exhaust heat shields. Carbon inside the end of your pipe is a good thing. blue pipes, bike is rich, yellow pipes, bike is lean.
Is that an accurate statement, It was what you heard in bars and garages.
Personally I like to see some carbon in the inside of my exhaust.
Is that an accurate statement, It was what you heard in bars and garages.
Personally I like to see some carbon in the inside of my exhaust.
Flames out the pipes? and better rich than lean!
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