De-Pairing How-To???

QUESTION(s): Seen it talked up, is there a 'how-to' in here someplace on de-pairing?
Assume it's an acronym, just what does "pair" stand for?

Have not yet removed much body work on my new-to-me '96... right mid cowl, tail cowl.
Haven't pulled the tank but will at some point... plan on a K&N replacement.

In fact most everything will be coming off for various mods and familiarizing myself with the VFR's workings...
...when I'm certain the riding for this season is done!
(Think "Snow" :wink

 

I just went through the process of removing my air injection junk on my '93. Never ran across any write-up or how to in here.
PAIR stands for Pulsed secondary AIR injection.
Two diaphragm pumps, each stealing vacuum from the front two intakes via a nipple threaded into the cylinder head. Unscrew the nipple + screw in a 5mm bolt. Join the two ports from the airbox together to each other to form a 'U' with a short piece of vinyl tube.
It is difficult to snake all of the hard tubing and rubber hose off the bike. Some parts may need to be cut.
The ports at the exhaust are the hardest to deal with. If you cut them off, and leave about a half inch of tube exposed, than the tube can be pinced off with vice-grips to seal it off. But that looks a little ghetto. I machined the heads of some bolts, and put them on the inside of the flange, and tightened an all metal locknut on the exposed threads sticking out.

 

One of the PAIR diaphragms is really in the way for tightening down a carb boot and adjusting the carbs while on the bike.

I am pulling this garbage off this winter too - maybe we can come up with a game plan.

I know that there are block-off plates for the exhaust ports on the head... this is a little less ghetto than cutting the pipes and screwing a bolt in there...

 

what will blocking the pair valve actually accomplish? more power or torque? thought of doing it on my 98 too but was wondering if its really worth it.

 

For me, the benefit would be to destroy more of the environment, one hydrocarbon atom at a time.

In all honesty, it's 3 lbs of crap that does not improve the performance, and actually in my case leads to popping out the exhaust on overrun (because of the atmospheric air being injected to the rich exhaust gases self-igniting after the combustion chamber).

On an FI bike, I have heard that the benefits are that the bike runs a little smoother, and you may actually pick up a tenth of a HP.