Bike running a bit rich but a lot cooler
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Tourer
Joined: Aug 2008
Posts: 493
Likes: 17
From: Ft LAuderdale
Bike running a bit rich but a lot cooler
So is it my imagination? I changed the pipes from Rinehearts to V&H and the bike runs a little
rich, a bit of poping when decelerating. The bike runs great and smooth but now that I am running rich it seems a lot cooler. Does that make sense? Please explain.
Also, now running rich seems to require higher RPM to get to any specific speed? Is that my imagination?
Two good HD dealer mechanics told me not to worry about a dyno run , because running a bit rich will not damage anything, on the contrary running a cooler engine makes it last longer. If that is the case then why is not everybody running a bit rich since we all like to get rid off the heat?
rich, a bit of poping when decelerating. The bike runs great and smooth but now that I am running rich it seems a lot cooler. Does that make sense? Please explain.
Also, now running rich seems to require higher RPM to get to any specific speed? Is that my imagination?
Two good HD dealer mechanics told me not to worry about a dyno run , because running a bit rich will not damage anything, on the contrary running a cooler engine makes it last longer. If that is the case then why is not everybody running a bit rich since we all like to get rid off the heat?
Seasoned HDF Member
Joined: Jul 2007
Posts: 6,336
Likes: 67
From: SW Minnesota
"Also, now running rich seems to require higher RPM to get to any specific speed? Is that my imagination?"
Yes. Your RPM at any given speed is determined by your gearing. Changing exhaust doesn't change your gear ratio.
This forum is full of threads on how to richen up the air/fuel ratio.
Yes. Your RPM at any given speed is determined by your gearing. Changing exhaust doesn't change your gear ratio.
This forum is full of threads on how to richen up the air/fuel ratio.
Last edited by MNPGRider; Jun 21, 2011 at 09:01 PM.
Grand HDF Member
Joined: Oct 2010
Posts: 4,618
Likes: 290
From: Johnstown, PA
"Also, now running rich seems to require higher RPM to get to any specific speed? Is that my imagination?"
Yes. Your RPM at any given speed is determined by your gearing. Changing exhaust doesn't change your gear ratio.
This forum is full of threads on how to richen up the air/fuel ratio.
Yes. Your RPM at any given speed is determined by your gearing. Changing exhaust doesn't change your gear ratio.
This forum is full of threads on how to richen up the air/fuel ratio.
Extreme HDF Member
Joined: Dec 2007
Posts: 13,402
Likes: 941
From: Illinois
It is in your head. The HD ECM will adjust the AFR to 14.7 to one which is lean and the ration that produces the lowest emission levels when you change the pipes and/or air breather to less restrictive units.
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Tourer
Joined: Sep 2010
Posts: 318
Likes: 1
From: Central Texas
I have had several big tube mufflers and you will always have popping and backfiring on deceleration with them. I have V & H mufflers now and have the same thing. I had D & D pipes on my last bike and no matter what they did or how many dyno runs they did it still popped. Pretty much figured it was the size of the muffler and lack of baffles that was the cause so I lived with it. -----I kinda of doubt changing mufflers richened up your bike though.
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Road Master
Joined: Nov 2008
Posts: 1,066
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From: Central Coast CA
I am running rich by choice also anywhere from 13:2 to 13:7 depeding on the cell location in my map. Not all bigg mufflers have decel popping it is either an exhaust leak or miss tuned. I have Rinharts with PCV and aouto tune the base map had just a little decel popping but the auto tune has removed all of that and my bikr runs like a top.
Seasoned HDF Member
Joined: Jul 2007
Posts: 6,336
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From: SW Minnesota
Start with a search for IED 's, or go to nightrider dot com
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