Brown wire milage ~ again..... - BMW Luxury Touring Community
 
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post #1 of 8 Old Aug 3rd, 2010, 3:53 pm Thread Starter
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Brown wire milage ~ again.....

Ok... I have done the search and come up with conflicting answers.... Does cutting the brown wire give ya better milage or worse milage?????

Thanks
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post #2 of 8 Old Aug 3rd, 2010, 3:55 pm
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Re: Brown wire milage ~ again.....

Cutting the brown wire lowered my miles per gallon. It did, however, help reduce the hesitation on hot days.

2002 K1200LT
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post #3 of 8 Old Aug 3rd, 2010, 3:58 pm
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Re: Brown wire milage ~ again.....

Snipping the brown wire is not for mileage, it is to correct a hesitation problem when it is extremely hot outside. Some folks have see mileage improvements when the wire was cut, some have seen mileage degradation when the wire was cut. YMMV.

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post #4 of 8 Old Aug 3rd, 2010, 3:58 pm Thread Starter
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Re: Brown wire milage ~ again.....

It cleared up my hesitation completely but it seems at a loss of 2mpg....
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post #5 of 8 Old Aug 3rd, 2010, 6:54 pm
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Re: Brown wire milage ~ again.....

Cutting the wire switches the ignition map to one that does not retard ignition advance due to temperatures above 85 degrees. I cut mine and lost MPG because I spend a lot more time with the throttle twisted and the revs up!!! Cut the wire and enjoy the power.

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post #6 of 8 Old Aug 4th, 2010, 8:13 am
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Re: Brown wire milage ~ again.....

Believe me, the difference in performance in the middle Georgia heat, was well worth the loss, if any, in mileage. Initially after I cut the brown wire I did detect the odor of gas when idling, since the new map apparently enriched the fuel flow. After a couple of hundred miles riding the smell was all but gone. The computer has apparently compensated for the new settings and life is wonderful. No hesitation and still getting 250 plus miles to a tank. I did start using premium fuel but hey, I was already used to that since I had to use it in my K1100LT from day one.
Cut the brown wire and enjoy the BEAST!
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post #7 of 8 Old Aug 4th, 2010, 9:48 pm
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Re: Brown wire milage ~ again.....

Ok, here are the facts.


- when you cut the brown wire, your bike runs better and your speed may go up.

- when your speed goes up, your MPG & fuel guage goes down

-when your fuel gauge goes down, so should your windshield and speed.

- when your windshield and speed goes down, then your MPG goes up.


so it all averages out...approximately. ( your results may vary)


.

Last edited by clawsonbob; Aug 4th, 2010 at 10:00 pm.
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post #8 of 8 Old Aug 4th, 2010, 10:42 pm
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Re: Brown wire milage ~ again.....

I noticed the greatest improvement when I reset the throttle and existing memory of the bike, along with switching back to premium gas... WHAT A DIFFERENCE!


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