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Posted by B. Peg on June 27, 2009, 1:23 pm
Okay. It's time to kick the manufacturer's in the ass for all these new
bikes having flat spots in their fueling band.
BMW K's have flat spots at 3200 rpm.
Ducati Streetfighters have flat spots from 3500-4000 rpm.
Gold Wings have FI lights come on ( FI=Fuel Injection issues).
Harley, without exception. Morseo on their older carb'ed ones with infinite
needles and jets. Cripes!
There should be no need for extra chips, substitute lambda sensors, Power
Commanders, whatever, to make them run without flat spots.
Come on manufactures: Get on the stick and make your bikes run right without
a lot of extra crap that's needed!
If they pulled this sort of fueling crap in cars the public would be
incensed.
show/hide quoted text
</rant!>
B~
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Posted by The Older Gentleman on June 27, 2009, 1:49 pm
show/hide quoted text
>
> BMW K's have flat spots at 3200 rpm.
>
> Ducati Streetfighters have flat spots from 3500-4000 rpm.
>
> Gold Wings have FI lights come on ( FI=Fuel Injection issues).
>
> Harley, without exception. Morseo on their older carb'ed ones with infinite
> needles and jets. Cripes!
They do? Ridden all of the above, have you?
--
BMW K1100LT Ducati 750SS Honda CB400F & XBR500 Triumph Street Triple
Suzuki TS250ER
If you don't know what you're doing, don't do it. And RTFM.
chateau dot murray at idnet dot com
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Posted by Mark Olson on June 27, 2009, 2:12 pm
B. Peg wrote:
show/hide quoted text
> Okay. It's time to kick the manufacturer's in the ass for all these new
> bikes having flat spots in their fueling band.
>
> BMW K's have flat spots at 3200 rpm.
>
> Ducati Streetfighters have flat spots from 3500-4000 rpm.
>
> Gold Wings have FI lights come on ( FI=Fuel Injection issues).
>
> Harley, without exception. Morseo on their older carb'ed ones with infinite
> needles and jets. Cripes!
>
> There should be no need for extra chips, substitute lambda sensors, Power
> Commanders, whatever, to make them run without flat spots.
>
> Come on manufactures: Get on the stick and make your bikes run right without
> a lot of extra crap that's needed!
>
> If they pulled this sort of fueling crap in cars the public would be
> incensed.
Bikes have a high power to weight ratio relative to cars which makes any
fueling issues easier to feel. I suspect some bike FI systems, no make
that most bike FI systems are less sophisticated than car FI systems.
And meeting emissions regulations means bikes have to run leaner than
most of us would like, which is where the problem really lies. What
would be nice is a factory EFI system that was as easy to remap as a
Power Commander, and would let you retain closed loop operation for
great mileage yet allow you to remap everything when in open loop mode
when you whack the throttle open.
Some bikes are renowned for having great FI systems already, eventually
they will all get better.
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Posted by The Older Gentleman on June 27, 2009, 2:30 pm
show/hide quoted text
> Some bikes are renowned for having great FI systems already, eventually
> they will all get better.
Now complaints whatsoever about the two FI bikes I run.
--
BMW K1100LT Ducati 750SS Honda CB400F & XBR500 Triumph Street Triple
Suzuki TS250ER
If you don't know what you're doing, don't do it. And RTFM.
chateau dot murray at idnet dot com
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Posted by Beav on June 28, 2009, 6:49 am
show/hide quoted text
>> Some bikes are renowned for having great FI systems already, eventually
>> they will all get better.
> Now complaints whatsoever about the two FI bikes I run.
Not much of a problem for the Zed either, although it does have a hole in
the power delivery to meet Euro II emission requirements. It's certainly
smooth enough, i.e non snatchy, and if the revs are above 4000, the hole is
barely noticable.
--
Beav
VN 750
Zed 1000
OMF# 19
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