Another approach to PAIR valve bypass. - Kawasaki Versys Forum
 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 08-02-2011, 05:46 PM Thread Starter
Member
 
cuff's Avatar
 
Join Date: Aug 2008
Location: Chilliwack BC
Posts: 575
Mentioned: 0 Post(s)
Another approach to PAIR valve bypass.

So I got board waiting around for my dealer to open up tomorrow and sell me three shims for my valves so I decided to try a PAIR bypass.

First off I made my own crank case breather with some 5/8" fuel line and some foam. It's held in place with some Shoe-Goo.

I then moved on to the upper portions and decided to just cap off the ports from the valve cover to the PIAR valve itself.



Plugging the hole at the bottom of the air box was just a matter of more Shoe-Goo and an old inner tube from the kids bike.

Also, I got lucky with my valve shims and will only require 3 on the exhaust side. The intake was spot on. An inspection of the cam caps showed a little wear but nothing to get excited about.


And the cams themselves looked new. The spots on the lobes is just oil, not pitting.

I should let everyone know that I encountered a problem with some wires in a loom that led to my CDI box and decided to look around while the bike was apart. Found at least 4 other spots that were worn down through the loom to wire. Nothing through the wire sheath yet but I wasn't going to let it get there. Some galvanizing tape did the job.

Now, if my dealer would open up when 'I' need them, I could check my TB balance now that I have two vacuum guages.

Falling down is your bodies way of saying you just screwed up.

IBA# 38547
cuff is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 08-03-2011, 03:28 PM Thread Starter
Member
 
cuff's Avatar
 
Join Date: Aug 2008
Location: Chilliwack BC
Posts: 575
Mentioned: 0 Post(s)
Just finished the job and can honestly say it makes a big change to the bike. According to my but dyno there is a bit more power but the big change is throttle response. I didn't get a chance to balance the carbs since my vacuum guages suck and just bounce around. Would recommend this mod to anyone.

Falling down is your bodies way of saying you just screwed up.

IBA# 38547
cuff is offline  
post #3 of 4 (permalink) Old 08-03-2011, 06:01 PM
Member
 
invader's Avatar
 
Join Date: Mar 2008
Location: Kapuskasing Ontario Canada
Posts: 7,827
Mentioned: 2 Post(s)
Sealing up the PAIR valve has no effect on performance. PAIR only admits air in the exhaust ports past the exhaust valves under engine decel... Adjusting the valves may have helped a tad. You just need restrictors in your vacuum gauge hoses to dampen the pulse.
Why did you modify your crankcase vent?
invader is offline  
 
post #4 of 4 (permalink) Old 08-03-2011, 09:56 PM Thread Starter
Member
 
cuff's Avatar
 
Join Date: Aug 2008
Location: Chilliwack BC
Posts: 575
Mentioned: 0 Post(s)
Quote:
Originally Posted by invader View Post
Sealing up the PAIR valve has no effect on performance. PAIR only admits air in the exhaust ports past the exhaust valves under engine decel... Adjusting the valves may have helped a tad. You just need restrictors in your vacuum gauge hoses to dampen the pulse.
Why did you modify your crankcase vent?
Thanks for the vacuum tip. I'll get them next time I'm in there.

As for the PAIR I'm running my cherry bomb again since my stock muffler ran into a little interior rust problem and developed a 'chirp' or 'whistle'. On my KZ1000 Police bike the EGR system did the same thing as the one on the Versys, added unused crank case fumes and air into the exhaust post valve. This did two things, clean up the environment ( I hat mother nature ) and add air. The extra air is what I'm trying to avoid since it sometimes pops with the cherry bomb.

Now, the pop is not as bad as it once was since adjusting the TPS, maybe unnotieable, but I figured what the hell I'm in there anyways and I like to tinker. My little pea brain thought it to be something positive and well, I'm on holidays.

You are right on the valve adjustment. The two outermost exhaust valves were waaaaaay too tight and likely causing a little power loss. My dealer was nice enough to do a swap with me so zero cost.

Oh ya, I fogot to add while I was at it I took off the wind screen and brackets for the summer. Shure looks and feels different.

Falling down is your bodies way of saying you just screwed up.

IBA# 38547

Last edited by cuff; 08-03-2011 at 09:58 PM.
cuff is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki Versys Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome