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Old 04-26-2010, 12:04 PM   #17
The Griz
North Forest Rider
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Joined: Nov 2008
Location: Minnesota
Oddometer: 3,787
Originally Posted by JoelWisman
I agree with your post above Griz, but will add a few things.

Yes the F800GS will compensate for a more free intake and exhaust to a point. It does have an oxygen sensor and a learning fuel map.

Base idle and closed throttle decel are NOT compensated by the F800GS but rather on a fixed fuel map.

All of them pop some on decel and this is much louder with aftermarket exhausts at least partially because the exhaust noises are usually much less muffled.
Good to know Joel! Thank you!

If power is all that one cares about then lambda (14.7 : 1 by mass) is not what you are looking for, you are looking for a somewhat fuel rich mixture.

This will be helpful to exhaust valves, tend to foul spark plugs, suck from a hydrocarbon and carbon monoxide emissions standpoint, destroy the cat, and reduce fuel economy, but will increase HP slightly
Exactly!! Me? I'm looking for 14.7:1.
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