Tech Talk: PAIR Valve Systems Explained

Tech Talk: PAIR Valve Systems Explained – Brock talks PAIR valve systems. What is it? What does it do and what does it mean to you and your motorcycle? We are addressing it with our 2017 GSX-R1000 project, so Brock decided to stop and allow you to explore this sometimes ‘mysterious’ system with him as he works his way from ‘Stock to Brock’!

Introduction – What is a PAIR valve? How does it work? Let’s find out!

1:00 PAIR (Pulsed Secondary AiR Injection System… I didn’t make this up)

2:30 Vacuum test using a simple piece of paper

3:10 Where did my vacuum go?!

4:04 Demonstration of PAIR openings in exhaust port using Busa cylinder head

4:50 “If I block my PAIR, will I pick up MORE POWER?!” (Uhhh… no, sorry)

5:50 Why would I want to block my PAIR?

6:23 Brock’s PAIR valve cap. The KISS principle (Keep It Simple, Stupid) at its finest!

7:00 POW! CRACK! BAM! KA-BOOM! Maybe I DON’T want to block my PAIR

8:30 The difference between a BLOCKED and DISABLED PAIR in ECU flash technology.

9:15 What happens if I tune my bike without the PAIR valve blocked?

Conclusion

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Please watch: "No More Nanny Bike! Brock Frees the Gen 3 Hayabusa with the Super Stock Box"
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[steven-vnui]

So refreshing to see a guy that really knows his profession. Thanks Brock

[MoswenMedia]

Very rare someone gives me the feeling they've forgotten more than I'll ever know, but man you can tell this fella has spent years and years on, under, inside, and next to bikes.

[michaelovitch]

Don't be afraid to be "technical" it's interesting, not boring at all.
This is why i watch your channel, you explain pretty well.
There is a similar system on cars, it's just an air injection pump, pumping air to the exhaust manifold to reduce emission during the closed loop period.

[chrisblock]

Thanks for taking the time to make this video Brock. It makes total sense now about what the PAIR valve does and how it affects the motorcycle. Great comment at the end about how the valve will give a false 02 reading.

[Al-dfnp]

Mate that's awesome, very informative. I've read a lot of BS on forums about the PAIR valve and what it does etc but you cleared up any blurry bits and un-truths. Thank you.

[ealvarez]

Thanks Brock! I almost sold my bike that I bought with an auto tuner already installed bc it did not have the pair valve blocked off and was running poorly. This video really helped. You are the man!

[matthysharmse]

Found a marble as mentioned on my K5 gixxer 1000. Removed it and heard that pop, didnt like it. Blocked with marble again. Now i understand the workings and why. Thanks for your awesome videos.. Keep them coming.

[LordOfTheChimpz]

You have a new subsciber all the way from Canada! Love the videos I've learned more in 10 minutes then I ever did in school lol.

[mikehunt]

An oldie but goodie.
Cant believe this video is 5 years old!

Working on my SV650, this video was super interesting.
Thanks!

[krishchandran]

Brock u need a lab coat with ur logo on it!!! Luv theese vids

[goaheadmakeourdayscooterpe]

Excellent explanation Brock even for a old timer who's been riding and racing since the 70's. Yes I still miss playing with carbs on bikes. Thanks

[anthonypaiz]

Thank you Brock i ordered the cap from you today, appreciate your videos very informative .

[Thebusaman]

I appreciate you Brock and all your videos, thank you

[tandpnetwork]

Best explanation yet of a pair valve. I'm leaving mine because it sounds awesome

[charredskeleton]

Thanks for taking the time to explain what the system is and how it works.

[Youngphoenix]

Thanks for the video. I just bought a 05 gsxr 600 and I had to go through all the wiring because they had it all messed up from adding led lights through the years so I cut it all out and had to properly fix all the connections right and make it look OEM and put new spark plugs air filter and oil change, radiator flush just normal stuff you would do when buying a bike that was ran hard it's whole life. Man does it run good. I also ordered brand new fairings but they won't be here untill end of summer so imma have to run older ones that don't look to good untill they come..

[mrvwbug]

I happen to like the decel popping, you sometimes even get a little bit of flame, especially on certain bikes like the FZ-09.

[twowheelvideos]

Great explanation! I consider my self proper schooled (as far as knowing what this is about, and what the ups and downs are). Thank you for smacking some knowledge on the community :-)

[RdeFast]

Thank you, Last year i bought a 21 R1 and ive been planning on getting it flashed and tuned. I bought some block off plates and soon to be sprint filter, I did not have any idea what the block off plates do and was debating on even putting them on. Thank you for taking your time and explaining this

[deecaliboy]

just wanted to say that this was very helpful and informative. Thank you