Great video! Planning to do block off plates on my 2013 Honda Cb1100 after I installed a catless exhaust setup.
@QuickShiftMoto1
Жыл бұрын
Great post David! So much misunderstanding about this system. The system is actually advantageous on a stock bike without decat.
@FaithisKey792
2 ай бұрын
Amazing thank you.
@themightyquinn100
3 күн бұрын
This is really interesting! I have a carburetored 2012 Ninja 250. It has this system on it. But it also has a coaster enriching valve (air cutoff valve) attached to the carburetor which will reduce the amount of air flowing through the idle circuit on deceleration if the wheels are spinning the engine and the butterfly valves are closed. The purpose of this is avoid the lean condition at idle throttle with the engine still at high RPMs thereby reducing the popping and backfiring. It seems like this AIS and the coasting enriching valve conflict with each other. What are your thoughts on it?
@vcyclenut
2 күн бұрын
No. They are both trying to reduce the amount of unburnt fuel coming out the exhaust
@georgemcpherson3706
4 ай бұрын
On a tuned bike with a full (catless) exhaust if you don't want the flames/decel pop block off the airflow, plates are pretty expensive for what they are flare plug and cap work just fine, good information in the video though.
@drunkpolack7612
3 ай бұрын
Bought some off aliexpress for 12 bucks, definitely worth it
@dillonskinner5496
Ай бұрын
I just capped my line
@Dat_Zupra_Dude
Ай бұрын
If someone WANTS the flames and pops on decel and keeps the factory PAIR/AIS Valve system BUT removes the charcoal canister and caps the purge valve hose, then is it possible to still have flames and pops on decel ??
@brandongreene9615
Күн бұрын
Doesn’t this feature make the bike slow down a lot when you let off the fuel?
@InfintrusHD
4 күн бұрын
I appreciate this video a lot, it really cleared up a lot of questions I had about this! I notice you did mention that installing the block off plates would eliminate the popping/ backfire. If you have block off plates installed, is it still possible to have popping on decel? I would like to have some popping, but nothing crazy as I'm getting a full exhaust for my '19 R6.
@vcyclenut
3 күн бұрын
Glad you liked it No. If you like popping on decel do not install block off plates.
@germanfrankovsky2213
4 ай бұрын
Great vidoe man! I was wondering if blocking the ais on a untuned bike can lean out the AF reading? After all, the air is injected in front of the o2 sensor, so theoretically it should read a richer mixture and withdraw fuel
@vcyclenut
4 ай бұрын
Thanks !! The o2 sensor is only doing anything at light throttle and lower rpm. Also the ais valve is only open on closed throttle deceleration. The air fuel during decel is pretty irrelevant Here is a video i made about the o2 sensor kzitem.infosAVJ4bgi8cs?si=kO5fUAl7T2Q43cSt
@zombie1078
15 күн бұрын
This is a very interesting video, thanks. I've been thinking about doing this with my bike, because it has an aftermarket muffler on it and I'm not really a fan of the popping and crackling. I guess that it would be expected that the tip of the exhaust would get a bit of soot around it after blocking the pair system?
@vcyclenut
14 күн бұрын
Glad it was helpful! Yes getting some soot on the tip of the exhaust is always normal.
@thehoodieguy3491
12 күн бұрын
Nice explanation! When the ECU flash disables the AIS, would it achieve the same as installing the PAIR valve block-off plates (provided that the rubber seals are functioning) and no pops on deceleration? Also, will the AFR be affected when the seals fail because it constantly draws fresh air from the airbox to the exhaust?
@vcyclenut
11 күн бұрын
In theory yes. But it’s pretty rare they seal up completely It won’t affect the actual air fuel ratio. Just what a wide band o2 sensor would read because the fresh air would dilute the exhaust gasses
@jamespreacherbeck4306
4 ай бұрын
Still very novice in understanding of system. After getting your ECU flash and having Graves slip-on, leave alone this alone? Or will adding block off plates help more. Apologies for my ignorance.
@vcyclenut
4 ай бұрын
No worries. Leave it alone. The bottom line is blocking off the ais never adds performance it just stops popping
@sergemcgraw6152
2 ай бұрын
Does blocking the PAIR valves on a non tuned bike (CB650R) with a aftermarket exhaust (no cat) affect the AFR ration in the combustion chamber? Because the O2 sensor in the exhaust will see richer mixture (because the PAIR are blocked, so no fuel is burned in the exhaust) so will assume the bike is richer than before and then leans it?
@vcyclenut
2 ай бұрын
no, PAIR valves are only active at closed throttle and the stock o2 sensors are not that accurate that a small amount of air is going to change what it is doing. Also the stock o2 sensor is only active at light throttle and lower rpm's kzitem.info/news/bejne/qYKo2qCCjHeVhaQ
@sergemcgraw6152
2 ай бұрын
@@vcyclenut thanks mate. Doing this mod this week.
@2wheelsmorereels
3 ай бұрын
hi, thanks for the video! I’m just curious what happens if we get the selenoid out and plug the hoses directly ?
@vcyclenut
3 ай бұрын
Most bikes will throw a check engine light if you unplug the solenoid without disabling the code in the ecu Plugging the line is a free way to block off the ais.
@2wheelsmorereels
3 ай бұрын
@@vcyclenut i couldn’t explain myself correctly 😅 i want to link hoses together so it can drag air all the time. what are the consequences?
@vcyclenut
3 ай бұрын
@@2wheelsmorereels just lots of popping and🔥
@2wheelsmorereels
3 ай бұрын
@@vcyclenut i like that 😆 thanks!
@user-wd1qy5nk8k
2 ай бұрын
Hey I recently flashed my ecu on my Zx4rr. I have only a slip on and I did disconnect my o2 sensor but do I need to do anything to the AIS/pair valve for just a slip on? Thanks!
@vcyclenut
2 ай бұрын
did I do the flash? If so I sent the ecu back with an information sheet.
@revvedout857
Жыл бұрын
Can you tune with a rapid bike race on the bike? Will an AIS delete help the rapid bike module adjust better?
@vcyclenut
11 ай бұрын
Ive run into issues before with the rapid bike. Yes you should block off your ais to give the rapid bike the most accurate exhaust readings. Im surprised it didnt say that in the instructions for it.
@revvedout857
11 ай бұрын
@@vcyclenut i didnt install it so i dont know. im going to email you with some questions.
@Jettset80
2 ай бұрын
So you said if your tuning a bike you prefer the block off plates so you get an accurate AFR readings. But if they are only working on decel or closed throttle what does it matter? If they aren't doing anything while cruising or acceleration how would it affect afr I don't understand. Im not trying to be an ass, as an amateur tuner im trying to understand
@vcyclenut
2 ай бұрын
because they can leak. The valve should only be pulling air at closed throttle, correct, but I am not trusting my work to a rubber stopper against a hole.
@Jettset80
Ай бұрын
@vcyclenut That's true I didn't think about that , makes sense
@grantking7833
Жыл бұрын
Could a person pick up two rubber plugs and cap off both inlets of the pair valves?
@vcyclenut
Жыл бұрын
you could, yes some bikes without the ecu flash to shut off the check engine light unplugging the solenoid will create CEL. So you may have to leave the solenoid plugged in anyway
@romanhrytskiv8845
11 ай бұрын
Why gen3 mt09 doesn’t have this system in place?
@vcyclenut
11 ай бұрын
You would have to ask Yamaha that question
@whatspeedlimits
4 ай бұрын
Where are you located? I am also a bike nut...and also own my own motorcycle dyno. Would be cool to hang out with fellow minded people.
@vcyclenut
4 ай бұрын
very north west corner of Washington state, you?
@hossor123
Ай бұрын
Can i install this on my mt09 2021.. i want more pops and bangs!!
@vcyclenut
Ай бұрын
No. You bought the wrong bike for decel pops and bangs
@hossor123
Ай бұрын
@@vcyclenut Crap! Drill a small hole pipe before the muffler? or get a MT10 2022?
@hossor123
Ай бұрын
so a specific pops and bangs tune wont do much on a mt09 gen3??
@vcyclenut
Ай бұрын
@@hossor123 i vote mt10
@vcyclenut
Ай бұрын
@@hossor123 not without doing stuff i would not do to my own bike
@alexpearson7693
Ай бұрын
Why not just cap the stock plates?
@vcyclenut
Ай бұрын
Sure you can do that. easier to just cap the line off the air box but either way works
@marcialquinones5683
7 ай бұрын
I HAVE CBR1000RR2007 WHIT YOSHIMURA MUFFLER AND POWER COMMANDER I dont not exacly is good you recomended is better doe
@albrechthilker9072
4 ай бұрын
You do not show a diagram where the valve is mounted in the motorbike. Just bla bla bla.
@vcyclenut
4 ай бұрын
Sorry you thought my video sucked.
@mharjustinoespina890
2 ай бұрын
You have to have a bike with AIS so you'll know.
@user-yj5xq9ic7m
Ай бұрын
What a useless comment. If you're watching this you should already know/have no difficulty finding all other relevant information on the subject, eyesight and basic mechanical inclanation go far.
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