Tuning
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Cruiser
Joined: Jul 2016
Posts: 138
Likes: 1
From: ga
Tuner
Anyone out their know why I should even have to retune because of just screaming eagle slip ins and stage 1 air cleaner,I am running lean,and hot,with some misfiring and decell popping
Road Warrior
Joined: Feb 2007
Posts: 1,730
Likes: 199
From: Vancouver BC
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Stellar HDF Member
Joined: Mar 2015
Posts: 2,944
Likes: 995
From: Winnipeg
More air in more air out amount of fuel in the mix hasn't changed
= lean
You could try an enrichment device may work it adds a little fuel across the board.
A good tune or tuner would be best option.
Check out fuel moto they will cure for what ails ya!
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Extreme HDF Member
Joined: Sep 2010
Posts: 14,744
Likes: 402
From: Phoenix '53, '88, '09 Big Twins
No o2 sensors on his model is the big obstacle
possible a thundermax could be used with a 2007/2008 type header to accept 2 sensors
there are other systems which do not use o2 sensors- but then the EFI is relying on maps with no feedback on how the motor is actually running and adjusting in real time
I stayed away from the HD EFI until after they added o2 sensors ( 40 years after volvo...)- as the carbed bikes usually ran well and were easily tuned
Mike
possible a thundermax could be used with a 2007/2008 type header to accept 2 sensors
there are other systems which do not use o2 sensors- but then the EFI is relying on maps with no feedback on how the motor is actually running and adjusting in real time
I stayed away from the HD EFI until after they added o2 sensors ( 40 years after volvo...)- as the carbed bikes usually ran well and were easily tuned
Mike
Road Captain
Joined: Jun 2016
Posts: 713
Likes: 203
From: The Nature Coast, FL
As stated, you are correct. I have an '06 Ultra and am using the V&H LED fuel pak. It works, but after I installed the Andrews 21 cams, V&H customer support has not been able to provide a good map. Getting 33-34 mpg and they say that is normal for my bike. I don't buy it and would recommend looking @ other options if you are going beyond Stage 1
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