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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through March 24, 2011 » Thoughts on AFVs? « Previous Next »

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Zacks
Posted on Thursday, March 17, 2011 - 05:45 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Last fall (late) when I was about to put the bike up, I noticed the AFVs were 105 F 110.5 R. I stopped in at the dealer and talked to the tech about it since when he'd had it the month before for the harness change he'd put it on the D-tech and reset them to 100 because I was complaining about surging.
That trip I got some song and dance about air temps and high pressure systems and that AFV's vary all the time.
Decided with the warm temps today to pull the 1125 out for the first time this year and play hooky for the afternoon.
Checked the AFVs after about 100 miles and they're still at 105 and 110.5. I know the air temp is warmer today, but couldn't swear to the baro pressure.
My BS meter is pushing into the red zone, but could anyone explain if this is 'normal'? Note, that this bike is completely stock with the exception of heated hand grips and ceramic coating the (stock) muffler.
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Froggy
Posted on Thursday, March 17, 2011 - 06:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Normal. The system is working as intended.

Get a Race ECM on it now, it will take care of that surging. : )
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Blake
Posted on Friday, March 18, 2011 - 05:11 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Zack,

You are concerned about a couple of numbers? Just ride the bike compadré.
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Curve_carver
Posted on Friday, March 18, 2011 - 08:14 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Its completely stock? No k&n or any other little gadgets. Do you have your bike denoided and linkage locked correctly?What kind of fuel are you running and what altitude are you at? 10% wouldn't have me worried.
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Zacks
Posted on Friday, March 18, 2011 - 09:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Froggy - Race ECM is on the list - steady work unfortunately is ahead of it.
Blake - anal-retention kicking in. Those were the numbers when it was running crappy. They're back - so far the surging isn't. As I said, the BS meter was heading to the red zone when he started talking about high pressure systems affecting AFVs.
Curve - yep, completely stock, stock, stock. Mobil. According to NOAA, 190 m. You'd think that being 40 miles from the factory I'd remain pretty much at baseline settings.
Which, BTW they were until late last fall.
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Curve_carver
Posted on Friday, March 18, 2011 - 09:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What kind of incidents happened last fall. Any kind of maintenance at all? Removal of airbox ,sensors,ect
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Zacks
Posted on Friday, March 18, 2011 - 11:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Nope, nothing like that. Just got colder. The stator failed and was replaced, but when I got it back the AFVs were at 100. I'd been monitoring the voltage levels while riding to see if the VR was going. There was some post here that got me thinking about TPS settings and I ran thru the diagnostics and noticed the AFV values had crawled up. You'd think with the approach of colder weather that they'd lean out if anything.
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Avalaugh
Posted on Friday, March 18, 2011 - 12:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Think you just hit the nail on the head there mate, just the colder, more dense air I'd say, so it's adding a tad more fuel.

Just ride : )
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Zac4mac
Posted on Saturday, March 19, 2011 - 09:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have 26k miles on Loretta after 3 years.
The OEM ECM had "difficulty" learning from the beginning.
The first year, she ran like a popcorn machine for 7 months until I got Dave's tuning software.
That started getting problematic, requiring updates to keep up with the new "flashes" that came out.

I bought one of the early Erik Buell Racing ECMs set for generic open intake/exhaust and found Heaven.
Save your pennies Zack, and get one.

2008 1125R - K&N/Drummer

Zack
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