@Nelonen92 Bro, AIS removal will eliminate the back firing/popping sound completely. Since a combustion needs 3 elements to work; fuel, heat and oxygen. Removing the AIS means stop supplying air(oxygen)from your airbox to the hot exhaust manifold(heat source), unburn fuel from your cylinder flowing out to the exhaust manifold(fuel in gas form)
@only1uv9m
14 жыл бұрын
Removing the AIS stops the back-firing or popping sound when you change gears or decelerate. I would assume that it works on the stock exhaust as well. As for the air box flapper mod with stock exhaust. I believed that you will get a power gain. But that power gain cannot be compared to a full system aftermarket exhaust. With the stock exhaust and EXUP valve. It might cut u some power because it is very heavy and the EXUP block your exhaust flow too
@only1uv9m
14 жыл бұрын
In other words, you will be releasing fuel in gas form into the environment. The AIS device is some kinda valve which opens and close to supply air. The ABFM makes a huge difference. Like, from stock exhaust to your current racing exhaust...u feel a significant difference....then u get used to it...it doesnt give u any feel anymore...
@gbabymesa22
12 жыл бұрын
i had a hell of a time putting that 1/8 plug on the vacuum line nobby thingy. Great video man, only one on youtube showing how to actually do it. all these damn "devices" lol
@OGPokey151
8 жыл бұрын
thank you for taking the time to make this video. it was very helpful
@spaszoid
12 жыл бұрын
@UnionOfTheMind No, however removing the Exup servo on your exhaust will. You can buy a premade resistor for about $60 or you can make one yourself for under 5.
@jamesjack5777
7 жыл бұрын
If you install a servo motor relay (from graves racing) it takes care of the error code. Also, you get better throttle response if you adjust the TPI ahead to 19-20 (check diagnostics on the computer)
@bartomiejosinski8570
2 жыл бұрын
TPI - does it mean the Throttle Position ?
@fisherdoug
10 жыл бұрын
Thank you for the vid.... Easy to do and helps with throttle response.. no error codes will happen.
@Nelonen92
14 жыл бұрын
@Nelonen92 Also, does the AIS mod require you to have a power commander?
@SuperLaplander
8 жыл бұрын
Good video. Thank you for the effort. Best regards from Sweden.
@only1uv9m
13 жыл бұрын
@jjaacky otr ard 16k, full system including papers is ard $1070. Everything is in stock except the handlebar and some accessories including the exhaust
@spaszoid
12 жыл бұрын
@viouviou56 Better throttle response, losing overall bike weight, and getting rid of the popping sound the exhaust makes.
@freakskate3
8 жыл бұрын
great video man. very clean bike, love it!
@Nelonen92
14 жыл бұрын
@only1uv9m Sure thing, Ill be trying it out once I get an aluminium plate somewhere, because I dont have the tools to make it myself.
@Nelonen92
14 жыл бұрын
Heya, thanks for the great video. Do you know if it makes any difference if you do the flapper mod like you did, or if you entirely remove the top of the box? Does the removal of the AIS increase power, and does it entirely remove the popping sound, because I have a yoshimura pipe on my WRX and Im rather fond of the popping sound :P
@chaunster
12 жыл бұрын
Damn there are a lot of "devices" on this bike!
@quimjuicemonkey
7 жыл бұрын
VERY HELPFULL BUT DID YOU BLOCK OF THE VACUM /VENT PIPE ?
@impleasen
11 жыл бұрын
What did you say about the little vacuum line going from the actuator to the throttle body in the last part of the video? Can you just tape the end and zip tie it? Thanks.
@90C1500
13 жыл бұрын
Does the engine light come on when you remove all that equipment and leave it all unplugged? Doesn't the computer monitor the engine electrical system and throws a code when something significant happens like loss of resistance or signal?
@MrMasterJones
8 жыл бұрын
Thanks for this video, lots of help!
@myroncuriel3047
7 жыл бұрын
MrMasterJones bnknm. I zkonsnishsnaiiafgAisjsns wn. Jaz n/@ askaspanaba snz
@Nelonen92
14 жыл бұрын
@only1uv9m Just thought of something as I was watchin this video again, If you only do the part at 3:30 in which you place a blocking aluminum plate to the hose that goes to the cylinder, would that do the trick without having to strip out the other parts?
@jessegonzalezjr2937
10 ай бұрын
Is it possible to do and a i s delete on a 2018 xt250 it's popping after put it on aftermarket header pipe and k&n air filter
@only1uv9m
14 жыл бұрын
@only1uv9m Then if you do the ABFM now...u will get increased power again(without touching/alter the inside of the engine).....tis mod is good because it doesn't hurt ur engine..n its free of charge...for extra gain power n response...it doesnt affects fuel consumption as well... I am running stock ECU and I am satisfied with the performance.....I will be changing to PC 5 at the end of the year....believed that its gng to be a completely new feeling again....
@only1uv9m
14 жыл бұрын
@Nelonen92 Bro, so long you stop supplying air to the part beside the exhaust port, it stops firing. But, the chrome metal pipe, the rubber pipe and the "actuator" will be bcome redundant. Besides, its quite heavy...so if you remove it...(I actually felt the front steering a bit lighter...maybe I am too sensitive to feel that little difference...hehe) When you hv removed....can let us know if it works?
@fernandoamestoy
9 жыл бұрын
Hello, could you tell me what happens to my bike does not operate esta FLAPER , because my bike lacks Reaction ! Thanks sorry for my English !
@siha2u
2 жыл бұрын
Hello very thanks 🙏
@erealpe13
13 жыл бұрын
very nice and creative im trying to get one like this
@boredazhell20
13 жыл бұрын
Great video.... Thank you so much for sharing.
@fatguyandy
7 жыл бұрын
great video! thanks!
@only1uv9m
14 жыл бұрын
@only1uv9m I might do a ram air duct on the side panel at the end of the year when I hv my PC installed.....that ram air duct...I am gng to cut the plastic and position the ram air duct at an angle which is lesser prone to water splash...wonder how it would be like...its just an idea for now
@only1uv9m
14 жыл бұрын
If you remove the entire top box....my worry is that its easier for water to go in...(if there is too much water).....I hv extra dirt wheels which i used on tis bike....doesnt do any good if the opening is too big...
@SashaDovbnia
12 жыл бұрын
What about Oxygen sensor on your WRX? AIS removal will 100% affect A/F ratio reads from O2 sensor. So how this will affect FI? Does this means that FI will lean to fit factory A/F ratio (about 14 for Catalytic converter)?
@SashaDovbnia
7 жыл бұрын
Well, O2 here is narrow-wide, and used mostly at idle/warming up.
@LaurenceGough
Жыл бұрын
Did you ever find out about this? It seems AIS only works on decel? O2 sensor shouldn't be used then right?
@SashaDovbnia
Жыл бұрын
@@LaurenceGough Yep, from what I found, O2 is dumb, not used for mid-high RPM. Anyway, I am using FMF exhaust and FMF PowerCommander to make A/F rich for active driving.
@LaurenceGough
Жыл бұрын
@@SashaDovbnia. Thanks. yeah its just narrowband I think it only works at low throttle and idle. But a lot of my riding also is below 20-30% throttle so I want to refit an O2 sensor to see if it will get better mpg when cruising. I think ais won't matter as that seems to work only on decel? It relies on negative air pulses in exhaust to work, I can't imagine there being that much negative air pressure when riding. The manual backs that up and says mostly when not riding / accelerating ais works.
@SashaDovbnia
Жыл бұрын
@@LaurenceGough I'd avoid 20-30% throttle cruising, as its too low for this engine, plus will definitely cause more vibration. Only stock exhaust flapper will help you to achieve what you want, but trade engine wear&tear.
@mrstoo1403
8 жыл бұрын
hi edmund, can i do this on a 2015 wr250r ? tq.
@only1uv9m
14 жыл бұрын
Its a Delta Barrel4 from Japan. :)
@roberrv2010
14 жыл бұрын
what exhaust is that????!!!!! Regards!!!!
@Nelonen92
14 жыл бұрын
@only1uv9m Okay, thanks for the info. Ill have to look into removing my AIS in the near future then
@m0nkeycheese
12 жыл бұрын
Where did you get your mirrors?
@pekitas
13 жыл бұрын
whats the blue stuff ? i mean whats the propper name so i know what to ask for ( im planing on doing this ) thanks, great vid btw
@biffg
13 жыл бұрын
Good job!
@viouviou56
13 жыл бұрын
what is the gain of this modification
@jessemontani5383
10 жыл бұрын
does removing the AIS cause an error code?
@honey38baby
10 жыл бұрын
yes, bypass with this link wr250rforum.forumotion.com/t627-cheapest-diy-servo-bypass
Thanks, I my error code is err-1 which means no signal from ecu.. Don't know what it could be
@honey38baby
10 жыл бұрын
try disconnecting the battery for about 30 secs and see if that clears the code
@gzup240
10 жыл бұрын
Ok thanks I'll try and let you know
@gzup240
10 жыл бұрын
I tried what you said and still have err-1 on speedo
@FOUDESSENCE93
10 жыл бұрын
Please please please could you translate in french this vidéo for me i would Like to realize this modification on my bike but i dont understund your english or write it in inglish in a commenter
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