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Old 05-06-2013, 11:41 PM   #4
Apple Jam
Forest Flyer
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Joined: Aug 2007
Location: Mt Hood mud flow
Oddometer: 6,541
So....since this SAS subject is up on the table...

I did my SAS removal at the same time I replaced some rather dirty fuel filters. I have noticed significant change for the worse in the famed jerky throttle at low revs. Especially annoying coming off 2-3k off-road.

I've ridden this bike through 50k miles and 2 other filter set changes, and I never remember it being this bad. But I never off-roaded so much as the last two years, so it could be my imagination, but......

Just a thought......I blamed the fresh fuel filters originally,...could this air injection be smoothing out throttle at low rpm? I mean, it's purpose is to heat the cats at idle/warmup....was this, just maybe, causing more backpressure and lowering power output at very low rpm?

Edit: 07 -990FI
Also, kinda curious.....What opens the reed valves on the heads, vacuum from exhaust, or pressure from the SAS pump?
"got no problem with keeping truly roadless areas as wild....
On the other hand, if it has been logged or mined and roads already exist,,
...then that land should be open for public use" (peterman)

Apple Jam screwed with this post 05-07-2013 at 12:04 AM
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