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Old 02-08-2013, 11:13 PM   #98
dnrobertson
Big Bike, Slow Rider
 
Joined: Jun 2008
Location: Frankston, Australia
Oddometer: 768
I have installed an 39mm FCR on my 2005 640A and also a Air Fuel Ratio meter. The bike was running rich across the board and I couldn't correct it easily, so as part of the tuning process I rode the bike without the side of the filter.

No observable difference in the AFR at all. This is with the snorkel removed and a Staintune muffler.

I also know this is controversial on this board to mention opening the airbox has no affect.

But put me on the fence regarding "opening the airbox".

David.
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David

2005 KTM 640A
2008 Wee-Strom

dnrobertson screwed with this post 02-08-2013 at 11:21 PM
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