PAIR plates question - Wrist Twisters
 
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post #1 of 14 Old 05-15-2011, 08:16 PM Thread Starter
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PAIR plates question

I've ordered PAIR blockoff plates from LDH, however I want to know if these are worth getting if I have a single sided exhaust. From what I understand the bike runs leaner with the single sided exhaust (Leo vince adapter with jardine pipe) and therefore "cleaner". Feel free to correct me if I'm wrong, I just want to know if going to know if it's worth installing these plates.

Also, could someone link me installation instructions, I tried searching but had no luck.

Cheers,

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post #2 of 14 Old 05-15-2011, 08:45 PM
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the PAIR system is for emissions only. it completes the burning of the unburnt exhaust out side of the combustion chamber (it also helps a catalytic converter do its job) .

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post #3 of 14 Old 05-15-2011, 08:47 PM
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The bike doesn't automatically run "lean" just because you put a different exhaust on it.

The PAIR plates simply clean up the area on top of the valve cover & let you remove the PAIR system entirely. The PAIR system itself helps lower certain emissions by injecting fresh air into the exhaust port on deceleration which causes any unburnt fuel still in the hot header to ignite and burn off. Installing the PAIR plates does absolutely zero for performance and if anything increases the emissions output of the bike however slight it is. The plus side of installing the plates is that it gets rid of that annoying popping sound on deceleration that so many bikes are plagued with.

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post #4 of 14 Old 05-15-2011, 09:44 PM
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I bought a pair from LDH to get rid of the 'popping' on deceleration, and they work. Installation is simple, and obvious when you see them.

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post #5 of 14 Old 05-15-2011, 11:35 PM
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I installed the block off plates from Ldh. I like them because they also clean up the area on top of the cylinder head cover which makes spark plug changes easier. No hoses to get in your way.

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post #6 of 14 Old 05-16-2011, 04:39 AM Thread Starter
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Great, thanks for the clear explanation. I had read up on them and knew they helped shave a bit of weight off the bike and possibly extended engine life, so I figured why not.

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post #7 of 14 Old 05-16-2011, 04:43 AM
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post #8 of 14 Old 05-16-2011, 05:18 AM Thread Starter
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Thanks, is backfiring or the "popping" the bike makes upon decel bad for it in any way?

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post #9 of 14 Old 05-16-2011, 08:12 AM
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Quote:
Originally Posted by TooEasy View Post
Thanks, is backfiring or the "popping" the bike makes upon decel bad for it in any way?
No it is just an irritating sound.

Another benefit to the PAIR plates is if you are having dyno work done the operator no longer has to worry about clamping off the PAIR hose lines to obtain an accurate A/F ratio.

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post #10 of 14 Old 05-20-2011, 07:30 PM
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newb question: where the hell does one find the plates, short of machining them yourself?

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post #11 of 14 Old 05-20-2011, 08:21 PM
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Quote:
Originally Posted by Lord Duckhunter View Post
The bike doesn't automatically run "lean" just because you put a different exhaust on it.

The PAIR plates simply clean up the area on top of the valve cover & let you remove the PAIR system entirely. The PAIR system itself helps lower certain emissions by injecting fresh air into the exhaust port on deceleration which causes any unburnt fuel still in the hot header to ignite and burn off. Installing the PAIR plates does absolutely zero for performance and if anything increases the emissions output of the bike however slight it is. The plus side of installing the plates is that it gets rid of that annoying popping sound on deceleration that so many bikes are plagued with.
I love that popping sound !
But it's not as nice as the sound my ancient CB750 with early style pipes on the plugs removed.
Sounds like a GP bike from the 60s on the downshifts when lean misfire kicks in from engine braking.
I like Rice Krispies too,as in Snap Crackle Pop makes the world go round.

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post #12 of 14 Old 05-23-2011, 11:15 PM
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Quote:
Originally Posted by bloodtricution View Post
newb question: where the hell does one find the plates, short of machining them yourself?
read up above. LDH can supply them for you. Or check ebay.

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post #13 of 14 Old 03-13-2012, 06:22 PM
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Other than making dyno tuning easier and getting rid of the popping on deceleration is there any benefit to eliminating the PAIR system?

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post #14 of 14 Old 03-13-2012, 07:00 PM
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Quote:
Originally Posted by rmb View Post
Other than making dyno tuning easier and getting rid of the popping on deceleration is there any benefit to eliminating the PAIR system?
MORE ZOMBIES! haha its cool rather than makin new threads.


Only other thing i can think of is cleaning up the excess junk on the top of the motor and a lil weight savings.

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