PAIR Valve

[HondaJon_imp]

ALWAYS replace exhaust system crush gaskets with new ones, NEVER reuse them......They are one shot deals..

[Joola_imp]

I installed a Power Commander this morning and noticed that the popping has gotten quite a bit louder with my Staintune and K&N Filter, especially with decel or when shifting at high revs. During one shift it almost sounded like a backfire. I'm going to try plugging the PAIR valve next weekend to see if that helps. If that doesn't do it, I'll try a higher octane fuel. I'm currently running 87.

[GUNFTR_imp]

Staintune is only a catback muffler, the stock headers remain so no crush washers come into play...

[Deanohh_imp]

I installed a Power Commander this morning and noticed that the popping has gotten quite a bit louder with my Staintune and K&N Filter, especially with decel or when shifting at high revs. During one shift it almost sounded like a backfire. I'm going to try plugging the PAIR valve next weekend to see if that helps. If that doesn't do it, I'll try a higher octane fuel. I'm currently running 87.

the pair valve will help quite a bit, changing octane will do nothing, a custom map might help a little more and will will make the bike run better everywhere.

[Joola_imp]

I installed a Power Commander this morning and noticed that the popping has gotten quite a bit louder with my Staintune and K&N Filter, especially with decel or when shifting at high revs. During one shift it almost sounded like a backfire. I'm going to try plugging the PAIR valve next weekend to see if that helps. If that doesn't do it, I'll try a higher octane fuel. I'm currently running 87.

the pair valve will help quite a bit, changing octane will do nothing, a custom map might help a little more and will will make the bike run better everywhere.

Thanks Deanohh. I want to do a custom map but I'm holding off until I decide whether or not to pull the trigger on new headers.

[HondaJon_imp]

Joola,

Deanohh is dead on. I was running the same set up as you and once I blocked that hole, the popping ended.

Oh, If you decide to change your header, go with a CAT free one, trust me on this.....BIG DIFFERENCE...... I just installed a motogear unit and all I can say is WOW. The TSR air funnel I highly recommend as well.

[736cc_imp]

What exactly have you guys been using to plug the pair valve hole inside the CB1100 airbox? I took a peek in there and left it alone for now. With the constant vacuum created in there, isn't pressing a plug in the hole a bit risky? The plug could easily get sucked into the intakes. That's certainly not a good thing....

[Deanohh_imp]

What exactly have you guys been using to plug the pair valve hole inside the CB1100 airbox? I took a peek in there and left it alone for now. With the constant vacuum created in there, isn't pressing a plug in the hole a bit risky? The plug could easily get sucked into the intakes. That's certainly not a good thing....

I think the vacuum is stronger within the hose.....but just in case I plugged the other end of the hose at the actual valve. Up in front of the tank instead of in the airbox. And reattached the hose.

[736cc_imp]

What exactly have you guys been using to plug the pair valve hole inside the CB1100 airbox? I took a peek in there and left it alone for now. With the constant vacuum created in there, isn't pressing a plug in the hole a bit risky? The plug could easily get sucked into the intakes. That's certainly not a good thing....

I think the vacuum is stronger within the hose.....but just in case I plugged the other end of the hose at the actual valve. Up in front of the tank instead of in the airbox. And reattached the hose.

I think the vacuum is stronger within the hose.....but just in case I plugged the other end of the hose at the actual valve. Up in front of the tank instead of in the airbox. And reattached the hose.
I'm guessing tank needs removal to do as you did. A pic or 2 of what you are talking about possible?

[Deanohh_imp]

I didn't remove tank but it would make it easier. You can reach in up under the front center of the tank. Its the front hose plugged into the r side of the valve. See thread NEW BLACK PIPE, post 14 and 16. Don't have pics.