Author Topic: Secondary Butterflies (Read 69406 times)

kjk concours · « **Reply #20 on:** January 03, 2014, 07:11:34 PM »

If I just remove the flies will it hurt anything, or do I need a reflash or powercammder.

koskn8r · « **Reply #21 on:** January 03, 2014, 07:58:13 PM »

I'm learning soooooo much on this forum...

maxtog · « **Reply #22 on:** January 03, 2014, 11:22:10 PM »

Quote from: kjk concours on January 03, 2014, 07:11:34 PM

If I just remove the flies will it hurt anything,

Yes, it will reduce the effectiveness of the traction control system. Does that matter? Maybe

Quote

or do I need a reflash or powercammder.

That depends on your objectives.

B.D.F. · « **Reply #23 on:** January 04, 2014, 07:46:29 AM »

I don't think anyone knows, or at least they have not reported the longer term effects.

It will absolutely work for the short term and apparently the bike will run very well that way. It might be a bit lean in some engine speed / RPM combinations but again, it has not been actually measured and those who did remove the 'flies and do nothing else never came back and gave any reports after the bike had a bunch of miles on it. ??

Brian

Quote from: kjk concours on January 03, 2014, 07:11:34 PM

If I just remove the flies will it hurt anything, or do I need a reflash or powercammder.

gPink · « **Reply #24 on:** January 04, 2014, 08:03:06 AM »

Only way to tell for sure would be dyno time or installing an O2 sensor and a/f meter. As Brian said, no one has reported any burnt valves from a too lean mixture.

kjk concours · « **Reply #25 on:** January 04, 2014, 08:49:46 AM »

It's a 2008 no traction control.

maxtog · « **Reply #26 on:** January 04, 2014, 09:28:15 AM »

Quote from: kjk concours on January 04, 2014, 08:49:46 AM

It's a 2008 no traction control.

In that case, I would say you have little to lose (except time) and a lot to gain. Most of us seriously doubt it will affect anything else negatively. Presumably the main purpose of the secondary butterflies was to "tame" the bike, making it less aggressive at lower RPM's... I suppose because Kawasaki believed touring types would be scared of 1400cc's. It probably also helps some with emissions and mileage (by forcing a lighter initial throttle). Using it for traction control came later.... and that function is in additional to ignition control (which is probably just as or perhaps more important).

jimmymac · « **Reply #27 on:** January 04, 2014, 09:36:42 AM »

Quote from: maxtog on January 04, 2014, 09:28:15 AM

I suppose because Kawasaki believed touring types would be scared of 1400cc's.

Don't forget, the ZX14 rocketship also has secondary butterflies.

B.D.F. · « **Reply #28 on:** January 04, 2014, 09:57:26 AM »

Yep, and the come out the exact same way- but they are bigger. This is a set of those pesky ZX flies caught on flypaper....

The bike ran OK without them but throttle response fell off quite a bit and low and mid- range power were lacking. The bike's owner had a custom PC III map made for the bike on a dyno and that brought it to life.

Brian

Quote from: jimmymac on January 04, 2014, 09:36:42 AM

Don't forget, the ZX14 rocketship also has secondary butterflies.

maxtog · « **Reply #29 on:** January 04, 2014, 12:49:59 PM »

Quote from: jimmymac on January 04, 2014, 09:36:42 AM

Don't forget, the ZX14 rocketship also has secondary butterflies.

Yes, probably for similar reasons, but they are also programmed differently; I suspect with more power in mind. Lots of bikes have secondary butterflies. It is the pre-cursor to throttle-by wire. Truly modern tech won't need them, because when you disconnect the throttle from the [primary] butterflies, the computer then has full control.

kwakrider · « **Reply #30 on:** January 07, 2014, 05:25:47 AM »

Quote from: kjk concours on January 03, 2014, 07:11:34 PM

If I just remove the flies will it hurt anything, or do I need a reflash or powercammder.

I removed the flies on mine and rode it that way with just a slip on exhaust for almost 2 years,about 40K km's before going the PCV route with dyno time,full exhaust and ZX throttle bodies. No hassles whatsoever!!

pasini510 · « **Reply #31 on:** April 14, 2015, 01:54:21 PM »

Thanks to all the info that I gain on this forum ,I finally pulled my flies. Wow , it pulls from get go and even feels more responsive at higher crusing RPM.

[removed info duplicated into a new thread]

maxtog · « **Reply #32 on:** April 14, 2015, 02:59:55 PM »

Quote from: pasini510 on April 14, 2015, 01:54:21 PM

Thanks to all the info that I gain on this forum ,I finally pulled my flies. Wow , it pulls from get go and even feels more responsive at higher crusing RPM.

Congratulations!

Amazing isn't it? It is the single best performance mod you can make (removing secondary butterflies or zapping them with an ECU reflash)- nothing else will even come close.

martin_14 · « **Reply #33 on:** April 16, 2015, 06:52:10 AM »

Quote from: maxtog on April 14, 2015, 02:59:55 PM

Congratulations!

Amazing isn't it? It is the single best performance mod you can make (removing secondary butterflies or zapping them with an ECU reflash)- nothing else will even come close.

Kawa might disagree. The single best performance mod is bolting on a supercharger

maxtog · « **Reply #34 on:** April 16, 2015, 03:47:07 PM »

Quote from: martin_14 on April 16, 2015, 06:52:10 AM

Kawa might disagree. The single best performance mod is bolting on a supercharger

Well, it would be hard to compete with that. Oh, and DO let us know when they make that mod available for our bike

VirginiaJim · « **Reply #35 on:** April 17, 2015, 04:22:16 AM »

I thing someone did do that in the past.

martin_14 · « **Reply #36 on:** April 17, 2015, 05:28:23 AM »

wasn't it a Turbo? I think it was that guy with the dog, quite a character. Not like the rest of us

gPink · « **Reply #37 on:** April 17, 2015, 05:40:49 AM »

There's been three turbos here that I can think of. Two of which didn't end well.

VirginiaJim · « **Reply #38 on:** April 17, 2015, 07:05:43 AM »

Quote from: martin_14 on April 17, 2015, 05:28:23 AM

wasn't it a Turbo? I think it was that guy with the dog, quite a character. Not like the rest of us

Could have been..I get the two confused.

Gigantor · « **Reply #39 on:** April 21, 2015, 06:28:32 AM »

News flash: most tuners including Ivan from NY produced more power with the flies in.

Even Area P received 20 hp gains with flies in.

Ivan tuned my 2013 ZX14-R. . .fastest bike on the planet

News:

Author Topic: Secondary Butterflies (Read 69406 times)