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GSXR Pair Mod |
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05-18-2005, 08:48 PM
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#1
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The Solution
Cakes206 is offline
Join Date: May 2005
Location: New Joisey
Posts: 8,105
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GSXR Pair Mod
As most of you may know the crank case on a GSXR is vented through the air box. This is mainly for emissions control. The problem with venting the crank case into the air box is oil mist can/will travel into the air box, past the filter and into the air/fuel mixture, weakening the charge detonation. The Pair Mod bypasses the air box and vents though the exhaust. This will not only eliminate all chances of oil mist getting into and through the air box...but will also create negative pressure within the crank case...wich is always good for a pony or two...
This is how to do the pair mod on an 02 GSXR 750. The applications for the same generation 600 and 1K's is relatively the same.
Take off the tank. Take off the air box. Take off the hose that connects the crank case cover to the air box and cap off the opening left behind on the air box.
Pic 1 This is where the pair valve sits(removed in pic)
Pic 2 Size and part # of hose from Home Depot
Pic 3 "T" connector also from HD
Pic 4 Cap off the vacuume hose with a slightly larger screw. I don't recomend cutting the hose, just incase you want to turn it back to stock. You can see the hose comming out just by the #4 TB.
Pic 5 Crank case cover where hose connected to air box WAS.
Pic 6 Attach one end of NEW hose to crank case cover.
Pic 7 Connect other end to "T" connector...Your done.
Pic 8 Your end result should look like this...plain and simple. The clamps I had gotten were a tad to small so I used zip ties for now. But as tight as that hose is...it ain't goin nowhere...
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Character is who you are when no one is looking.
The more you sweat in practice, the less you bleed in battle.
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05-26-2005, 03:39 PM
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#2
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Out of Hiding
DougZ is offline
Join Date: May 2005
Posts: 751
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Joe, have you done this on the SV1K?? If so, is it basically the same procedure??
What do you think of "desnorkling"???
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2003 Suzuki SV1000s,
2001 GSXR 600 Street Fighter project
2003 HD Sportster 1200 Custom
1995 KDX 200,
DZC
My bikes:
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05-26-2005, 06:58 PM
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#3
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The Solution
Cakes206 is offline
Join Date: May 2005
Location: New Joisey
Posts: 8,105
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Hey Doug, I haven't really been able to get down n dirty with the twins so to speak yet...I've only done this on my Gix when I had it.
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Character is who you are when no one is looking.
The more you sweat in practice, the less you bleed in battle.
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06-02-2005, 04:00 PM
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#4
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.doosh
JasonB is offline
Join Date: May 2005
Location: Maplewood, NJ
Posts: 1,175
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wait i dont get it :uh:
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Jason... you one good lookin black man
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Jason is one good looking black man! ![Wink](images/smilies/wink2.gif)
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Originally Posted by ~Donna~Today 04:29 PM
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Quote:
Originally Posted by Ant
but instead i"m sitting in an airport internet chatting with a two bald men, one former gangbanger who drives a volvo and the other who thinks he's monk
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1999 Red Kawasaki ZX6R – Sold
2001 Black and Silver GSX-R1000 - Sold
2007 Blue GSXR 600 - Sold
2006 Black GSXR 600 – Sold
2008 Blue and Orange Yamaha R6 – Current track bike
TPM/Nesba #819
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06-02-2005, 05:56 PM
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#5
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The Solution
Cakes206 is offline
Join Date: May 2005
Location: New Joisey
Posts: 8,105
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Quote:
Originally Posted by Jase
wait i dont get it :uh:
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What don't you get?
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The more you sweat in practice, the less you bleed in battle.
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08-03-2005, 04:18 PM
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#6
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Learner's Permit
RacerGSX is offline
Join Date: Aug 2005
Posts: 12
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?
Hey Joe is this MOD done the same way for a 04 GSXR 600? I have been looking but have not found anything on it.
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2005 Honda 919 & 2004 Suzuki GSXR 600
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09-08-2007, 04:31 PM
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#7
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Short Shifter
Duff750 is offline
Join Date: Jan 2007
Location: Bethany, OK
Posts: 112
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NOTE: 3/8in fuel hose will NOT work... Went to home depot and they claimed the don't sell rubber hose, only vinyl hose. Went to Auto Zone and got some, and it turns out you need hose with a 3/8in hole, not 3/8 actual diameter of hose.
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09-08-2007, 04:46 PM
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#8
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The Solution
Cakes206 is offline
Join Date: May 2005
Location: New Joisey
Posts: 8,105
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Quote:
Originally Posted by Duff750
NOTE: 3/8in fuel hose will NOT work... Went to home depot and they claimed the don't sell rubber hose, only vinyl hose. Went to Auto Zone and got some, and it turns out you need hose with a 3/8in hole, not 3/8 actual diameter of hose.
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Fuel hose? Air hose like for compressors was originally used. Home Depot might not carry it anymore as it was originally done 5 years ago. The pic showes 3/8" ID...Inner Diameter man ![Emot LOL](images/smilies/emot-LOL.gif) It is a tight fit though...just how I likes it ![3smilies](http://sportbikeaddicts.com/images/smilies/say_hear_see.gif)
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Character is who you are when no one is looking.
The more you sweat in practice, the less you bleed in battle.
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09-08-2007, 04:47 PM
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#9
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Short Shifter
Duff750 is offline
Join Date: Jan 2007
Location: Bethany, OK
Posts: 112
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Yeah, I didn't know what ID meant, lol.
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10-31-2007, 07:57 PM
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#10
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Learner's Permit
07gixxer750 is offline
Join Date: Oct 2007
Posts: 2
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what about doing the mod on a bike newer than 05 that has a sensor hooked up 2 the pair valve? any sugestions? I tore my 07 750 apart and then realized that all the write ups are for bikes 05 and older. any help would greatly be appreciated.
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10-31-2007, 09:00 PM
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#11
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ron.google.com
High_Revs_17 is offline
Join Date: May 2005
Posts: 3,971
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Providing the sensor's mounted in a similar location with the modified hosing I don't see why there should be any sensor trigger issues.
Quote:
Originally Posted by 07gixxer750
what about doing the mod on a bike newer than 05 that has a sensor hooked up 2 the pair valve? any sugestions? I tore my 07 750 apart and then realized that all the write ups are for bikes 05 and older. any help would greatly be appreciated.
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'92 Honda CB747-Cafe'
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10-31-2007, 09:57 PM
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#12
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A 37 Production
CBRBob is offline
Join Date: Jun 2005
Location: Central NJ
Posts: 4,347
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Is it a sensor or is it a solenoid? On the Honda's, there is a solenoid valve that opens the air passage. On them you unplug it, remove the system and cap the airbox and 2 ports on the valve cover with rubber caps. I would assume the suzi would be the same.
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CBR Bob
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Cakes206:fuck the devils
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pair valve mod on k7 750. |
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11-05-2007, 09:38 PM
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#13
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Learner's Permit
07gixxer750 is offline
Join Date: Oct 2007
Posts: 2
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pair valve mod on k7 750.
So i had 2 find my own way 2 get it 2 work, so to speak. i used the same hoses from the pair valve, and put a 1/2" connector between the 2. As for the hose from the crank case to the air box, i eliminated the hose completely and put a breather on the crank case, and capped the hole in the air box. any questions pm me or email me at 07gixxer750@gmail.com
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k7 750, pcIIIusb,bmc filter,R1 throttle mod, set valve removed,HID headlight conversion,gp shifting, rk quik accel kit ordered.
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11-05-2007, 09:57 PM
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#14
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ron.google.com
High_Revs_17 is offline
Join Date: May 2005
Posts: 3,971
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Good move, can never go wrong with a crank case breather, they just need to be cleaned a few times a season, installed one on my bike and it worked great.
Quote:
Originally Posted by 07gixxer750
So i had 2 find my own way 2 get it 2 work, so to speak. i used the same hoses from the pair valve, and put a 1/2" connector between the 2. As for the hose from the crank case to the air box, i eliminated the hose completely and put a breather on the crank case, and capped the hole in the air box. any questions pm me or email me at 07gixxer750@gmail.com
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11-06-2007, 09:51 AM
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#15
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A 37 Production
CBRBob is offline
Join Date: Jun 2005
Location: Central NJ
Posts: 4,347
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Put the hose from the crankcase vent to the airbox back on. You want negative pressure in the engine as much as possible. You read about how 'improved crankcase design drops pumping losses'. All that means is they found a better way for the air to move from the underside of one piston to the other easier. If you make a vacuum in the crancase, there is less air for the bottom of the piston to push against, hence, less power lost, and no oil drool on the outside of the engine.
One trick you will find in dragracing is that they have several vacuum pumps on the crankcase to gain power. Keeping the hose to the airbox helps, there is nothing to be gained by removing it.
Leave the pair on a stock muffled bike. There is no performance gain by removing the pair. The only benefit is if you put an aftermarket exhaust on you will hear the popping on closed throttle decel, disabling it takes away the popping. Also if you have the bike dyno-tuned, it needs to be disabled.
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CBR Bob
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Cakes206:fuck the devils
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