Shooting Flames - Kawasaki ZX-10R.net
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post #1 of 13 Old 01-16-2019, 08:51 AM Thread Starter
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Shooting Flames

For informative reasons...
My AIS system is disabled but I still shoot flames (not complaining). Can someone explain why that is? What's the difference between disabling the AIS and removing it completely? Why does one setup prevent backfiring and the other still allows it?

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post #2 of 13 Old 01-16-2019, 09:30 AM
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During engine braking, most OTS flashes or profesional tuners will use a small amount of fuel to help reduce the affectiveness of engine braking. Often it isn't too much and flames are limited, but depending on what you need from the tune, it can be more.

Also, the throttle blades don't snap shut when you close the gas. The ETV will drop the TPS to about 5% and then slowly close the throttle based on preset numbers. Slower TPS closer, means a smoother engine brake affect. Add fuel during this moment and again the affect is reduced even more.

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post #3 of 13 Old 01-16-2019, 10:53 AM
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disabling pair valve with flash simpley stops the fi code u recieve if pair valve actuator is removed/unplugged. pair valve still operates normally injecting air into exhaust just as before flash. best/simplest solution leave valve plugged and plumbed, block off pair valve hose to airbox to stop air entering exhaust. that's the difference. must be done before any tuning whether dyno, auto tune to get accurate afr. there is residual fuel in exhaust on abrupt decel in any bike, with no oxygen present from pair valve or ex leaks goes unnoticed as in no popping/flames.
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Last edited by gaz; 01-16-2019 at 11:09 AM.
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post #4 of 13 Old 01-16-2019, 11:19 AM Thread Starter
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disabling pair valve with flash simpley stops the fi code u recieve if pair valve actuator is removed/unplugged. pair valve still operates normally injecting air into exhaust just as before flash. best/simplest solution leave valve plugged and plumbed, block off pair valve hose to airbox to stop air entering exhaust. that's the difference. must be done before any tuning whether dyno, auto tune to get accurate afr. there is residual fuel in exhaust on abrupt decel in any bike, with no oxygen present from pair valve or ex leaks goes unnoticed as in no popping/flames.
Ah! Thank you. I was unaware that just the FI code is flashed out, not the actual function.

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post #5 of 13 Old 01-16-2019, 11:27 AM
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google disabling pair valve vrs blocking it off, brock offers more info in video.
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post #6 of 13 Old 01-16-2019, 05:09 PM
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Yah,

take off the tank and airbox, remove the PAIR valve, and install block-off plates or plumb them together with a piece of hose.
Do the same for the intake flapper valve if you still have that too.

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post #7 of 13 Old 01-16-2019, 06:21 PM
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Or don't do any of that because you want wicked glorious flames!

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post #8 of 13 Old 01-25-2019, 02:11 PM
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Originally Posted by ddipaola View Post
For informative reasons...
My AIS system is disabled but I still shoot flames (not complaining). Can someone explain why that is? What's the difference between disabling the AIS and removing it completely? Why does one setup prevent backfiring and the other still allows it?
I DON'T agree that disabling the PAIR air valve only disables the code. . .WHY? Because I rode and tested it on my own bike. I replaced my exhaust, had it reflashed and tuned for exhaust but when the PAIR air was enabled it popped like a World Superbike and shot blue flames. It didn't like 35-50 mph around the city either. I have a You Tube video on it below.

Once I disabled the PAIR air, it drove much better in the city and at cruising speeds. It don't shoot the blue flames and much, much less popping. Just disabling the code will not just cause the bike to run better. That is why I believe checking the disable function HAS to be doing more!!! When it was enabled I never even had an engine code (I rode it like that an entire season). Check out both my You Tube videos and judge for yourself. I kept it disabled now. It runs better, just miss the World Superbike sound. I agree block off plates are a good idea but they are a pain in the ass. I haven't done mine yet.

Enabled PAIR air injection: https://youtu.be/dr4teRhBLV4

Disabled PAIR air injection: https://youtu.be/cc5-7TIXnrs
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post #9 of 13 Old 01-25-2019, 05:56 PM
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don guhl just answered this question coupe of days ago on zx14 forum, stated to his knowledge only his flash disabled code and pair valve function. may be a couple more, but most dont.
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post #10 of 13 Old 01-28-2019, 06:23 AM
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don guhl just answered this question coupe of days ago on zx14 forum, stated to his knowledge only his flash disabled code and pair valve function. may be a couple more, but most dont.
Woolich Racing software also disables the code and pair valve function.
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