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Enduro Engine 4 stroke (including EFI & Exhaust) 4 stroke engine, EFI, and exhaust discussion


 
 
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Old 06-20-2014, 07:03 PM
Why Z? Why Z? is offline
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Join Date: May 2014
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Default Blue/Yellow Wire on ECU/running lean????

Hi I think my 07 EC450 FSR is running a bit lean.
(Header pipe turning red, etc.)

I have heard running the wire connected to the ECU (blue and yellow wire?) makes it run leaner for emissions regulations , possibly TOO lean for normal use.

My bike is not running Extremely lean, but definitely on the lean side.
I would sleep better if it run a bit on the rich side.
(For my use and nearest dealer 6 hr away I would rather play it safe)

-1. Is it safe to disconnect the blue/yellow wire?
-2. Will this make it run a bit more rich?
-3. Where should I disconnect it or does it matter?

Thanks, Katrina

Last edited by Why Z?; 06-20-2014 at 08:37 PM. Reason: Add model 2007 EC450 FSR
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