PAIR valve question

lois

For you guys that have blocked off your PAIR system, did you have to do anything special to the wire onto the control valve.

I have heard it said ,that if the wire off of the control valve assy is unhooked and taped off, the EFI light will stay on.....any truth to this rumor?

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Warchild

Zero truth to that rumor for a 2000 model year (non-California) XX.....

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jblackbird2000

Hopefully I'll be able to confirm that statement by Warchild. Not that I doubt it of course, one just never knows with these things.

I just ordered RedJ's nifty little plates that he's machined for this purpose, and hopefully I'll get them by weeks end to do some wrenching.

Jay

porterb123

Dale is correct on the 2000 model. I did mine with no problems. My fuel injection light did start flickering a year later. Did the loom fix, took pics and posted a how to on da udder site.

lois

YOU GUYS ROCK......

You see, it's little things like this that save a fella tonns of screwing around down the road.

Lou

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WestOzBird

Will be fittin a set to my 06 when I get the PCIII, wanna do both jobs in 1 go. Should be soon just got email sayin it's on the way. Will post pics after.

lois

Just finished installing new plugs ....easy as pie. Removed tank and air box, whole job took about 30 min.


Question, looking at the pair valves ontop the engine . Some of you folks are installing "block off" plates, but I wonder....can I not just cap off (install plugs with clamps) the reed valve covers instead of removing them, or is there to much suction.

Thoughts?

Lou

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XXRider

Yes I've heard of it being done. I bought block off plates to make a little bit easier to work on.

gourmet

This is going to sound really stupid, but why do the pair block off? Is it for performance, gas mileage or something else?

Sorry, I am not the most mechanically inclined.

Brian

lois

It depends who you talk to, but removing the pair valve will improve tuneability, makes the plugs easier to get to etc.

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gourmet

Thanks, so no real performance upgrade? I am looking to put the PC 11 on this winter with a set of TiForce exhaust is it recommended to do this at the same time then?

Brian

ccriderXX

That is what I did on my ZX11. I got some rubber plugs from Home Depot and used some orange RTV to make extra sure they were sealed. Seemed to work fine. I like the looks of the block off plates better.

lois

Well, I just went to a local CNC shop and had some block off plates made. If you want a set a had a few extra's made up.

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Mancrius

I have one question about PAIRs...

Do all XX have this valve or there are some who hasnt ?

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Mancrius
CBR-1100XX 2001
Campinas - SP - Brasil

Banshee

I think all except a few carbed versions do have them. My Australian '98 carbed one, for example didn't, but the American ones (and I think European ones) did.

Tougher emissions regs there at the time, I think.

Mancrius

Do you know how could I check if mine has ?

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Mancrius
CBR-1100XX 2001
Campinas - SP - Brasil

lois

Sure, just do a site search....Warchild has posted a layout with lots of pics.

But the long and the short of it is.....remove seat-remove 2 bolts holding rear of gas tank - lift up rear of tank a touch, pull back on tank to uncouple the rubber holders on the front of tank - lift up tank and prop....or remove from motorcycle - remove air box lid - remove air cleaner element - remove screws holding airbox to EFI stacks - remove air box- look at top of engine....you shold see two covers with hoses attached to them ontop of your valve covers.....those are your PAIR valves.


or

I'm not sure, but maybe if you removed one of your side covers and used a flash light you may be able to see if they are there...


But IMO, there are VERY VERY few birds that do not have them

Lou

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Birdman

03 and no FI light came on

i did however have major idle problems with the bike, have since re-installed the pair valves and now the bike idles just fine

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lois

My guess would be that you had a problem with the block off plate install (air leak) perhaps.

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Warchild

Concur; sounds like there is something else going on with your particular install, Byrdman. I have never heard of any performance gain or loss upon installing the PAIR Blockoff plates.

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Birdman

didnt look like any leaks when i took them off, doesnt matter, its not seen and its all running fine with pair valves re-installed

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tomek

Sure ,why not ,but you can do even better.

You can "marry" crankcase venting hose ( in case of XX it is on the top of valve cover)with PAIR system..Pair valve can be used as a Y pipe,,,,,but needs to be taken a part,,,,,,,,there is rubber membrane,,,,,,,needs to be removed.That way the valve will stay open all the time.You will need to seal some holes in airbox now,,,,,,,,,

Some members from "other" forum voiced their concerns about possible oil consumption if routed that way,,,,,,,,,,,,,but after 4000 miles I have none,,,,,,,,,,,,it may depend on how much blowby you engine has,how well your piston rings seal,,,,,,,,,of course I alwayes brake in my motors by running very,very hard,,,,

Mancrius

Hi !!!

I´m thinking to buy a Wide Band Commander for a fine adjust of my PC-III... So I´ll need to disable the pair valve system...

My question is:

What is the better thing to do... Buy a pair valve blockoff kit (and remove the hoses, the valve, wires, etc) or is it possible to just put something inside the hose for block the air flow ?

Somebody has pics from this job ? I found some pics but i´m not so shure about the possibilities. For me if I just block the air flow could be sufficient...

Any guess ?

Thanks !!!!

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Mancrius
CBR-1100XX 2001
Campinas - SP - Brasil

lois

[quote=Mancrius;26669]Hi !!!

I´m thinking to buy a Wide Band Commander for a fine adjust of my PC-III... So I´ll need to disable the pair valve system...

My question is:

What is the better thing to do... Buy a pair valve blockoff kit (and remove the hoses, the valve, wires, etc) or is it possible to just put something inside the hose for block the air flow ?

Somebody has pics from this job ? I found some pics but i´m not so shure about the possibilities. For me if I just block the air flow could be sufficient...

Any guess ?

Dude, put the PAIR Block off's in, for the amount of dickin around a guy would do to block them off by pluggin the hoses( they would probably leak anyhow) you might as well do it right and install the kit.


I have a couple of kits left. They come with color instructions.

If you like, PM me and I'll explain further.

Lou

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Mancrius

Hi,

I´m going to change the spark plugs and install the pair valve blockoff kit.

Does anyone have a step by step manual for install the blockoff kit ?

Thanks !!!!

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Mancrius
CBR-1100XX 2001
Campinas - SP - Brasil