PAIR Valve Removal

   

 

    
   

First step is to lift the fuel tank.  Will be 2 hoses that need to be removed on the left side of the tank.  Remove the top of the airbox (unplug temp sensor and vac line).  Remove the Velocity tubes (3 screws each set).  Remove the 2 hoses off the right side of the airbox.  You can then lift the bottom half up and out of the way.

   Remove the rubber sheet that goes over the motor.  The Pair Valve is located to the front of the bike, has 2 wires on it (orange/green).  Will have 3 hoses off it, mounted with a 8mm bolt.  Once you remove the 2 hoses at the valve cover, 8mm bolt and disconnect the wires, the valve will be able to be pulled out.   What the PAIR valve looks like outside of the bike.  The hose on the far left goes to the airbox.  The bottom 2 hoses go to the valve cover.
         

 

  What is the PAIR valve you ask?  It's part of the Emissions system on the bike.  It injects air into the exhaust ports to burn off the un-burnt fuel.  You really won't gain Horsepower from doing this (some do claim 1-2hp gains though).  It's not heavy so no real weight loss either.  I was gonig to get the bike put on a Dyno and tuned the next tuesday so I figured I'd remove this before then.  Either you remove it, or clamp the hoses when you get it tuned on a dyno.  Otherwise the air injection will throw off the A/F reading on the Dyno and the bike won't be tuned correctly.  Also by removing the valve the bike feels alittle smoother, no popping on deceleration anymore.  If you are bored, go ahead and remove it, or if you plan on having your powercommander tuned on a dyno.  Otherwise it really didn't make much of a diffrence.
To block off the the nipples where the hoses were removed you can use some 5/8" bypass caps.  Use some zip ties to make sure the caps will stay on.  I chose to remove the crankcase breather tube from the airbox and install a small K&N crankcase breather filter.  If you wanted you could just put the breather hose (connects from the valve cover to the airbox) back on and only block the hole that was connected to the PAIR valve.   Here is the nipple off the top of the valve cover after it's been blocked off.  You can also just take a hose and run it from one nipple to the other nipple on the valve cover.  A 5/8" cap will be loose so you will either need to get one size down or use zip-ties.  All that is left now is to put everything back on (if you get a FI error...check that the temp sensors are plugged in).