Is the PAIR valve prone to failure? - Suzuki Volusia Forums : Intruder Volusia and Boulevard Forum
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post #1 of 8 (permalink) Old 05-27-2019, 02:50 PM Thread Starter
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Is the PAIR valve prone to failure?

Reason I ask is ever since I've owned the bike it has had some decel popping. Well it recently just stopped happening completely. I have done nothing to the bike, it would always religiously pop and fart on decel but no more.
Makes me wonder if the pair valve is blocked with something, since people used to purposely block the tubes as they didnt like the decel popping.
Either that or does the solenoid have a reputation for jamming? No engine warning light, bike runs fine otherwise.
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post #2 of 8 (permalink) Old 05-27-2019, 04:38 PM
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Quote:
Originally Posted by EazyDyz View Post
Reason I ask is ever since I've owned the bike it has had some decel popping. Well it recently just stopped happening completely. I have done nothing to the bike, it would always religiously pop and fart on decel but no more.
Makes me wonder if the pair valve is blocked with something, since people used to purposely block the tubes as they didnt like the decel popping.
Either that or does the solenoid have a reputation for jamming? No engine warning light, bike runs fine otherwise.
Mine has never popped on deceleration.
On the same note, I've never jacked with the pipes, intake or fuel system.

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post #3 of 8 (permalink) Old 05-27-2019, 05:43 PM
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From what I have heard popping on deceleration is not a big deal and you may not even notice it but popping during acceleration would be a problem. I've never really paid attention to popping on deceleration with my OEM pipes. If it is there it is probably so quiet that I don't notice it. WIth my Cobra exhaust I would hear some popping, ONLY during deceleration. I know this doesn't really answer your question sorry
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post #4 of 8 (permalink) Old 05-27-2019, 07:25 PM
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I think eliminating the pair valve helps get rid of the popping. There's a trick with golf tees from what I remember.

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post #5 of 8 (permalink) Old 05-28-2019, 04:19 AM
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Had a '02 that I rode for 9 years. Never messed with the PAIR valve, or had any problems.

Maybe contrary to most, but I liked the decel poping. Old school days meant that the valves were adjusted right.
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post #6 of 8 (permalink) Old 05-28-2019, 09:05 AM
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^ he's old school alright
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post #7 of 8 (permalink) Old 05-28-2019, 09:27 AM
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Quote:
Originally Posted by EazyDyz View Post
Reason I ask is ever since I've owned the bike it has had some decel popping. Well it recently just stopped happening completely. I have done nothing to the bike, it would always religiously pop and fart on decel but no more.
Makes me wonder if the pair valve is blocked with something, since people used to purposely block the tubes as they didnt like the decel popping.
Either that or does the solenoid have a reputation for jamming? No engine warning light, bike runs fine otherwise.
One of the vacuum hoses may have dry rotted, or split, preventing the device from functioning.

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post #8 of 8 (permalink) Old 05-28-2019, 05:12 PM Thread Starter
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Having read old threads it appears that the PAIR valve is malfunctioning IF you have popping on decel. Hence why people used to block them up to stop that happening. A properly functioning one should not pop on decel.
So I guess mine was defective but somehow fixed itself, as it would religiously pop on decel and no longer does.
Either that or the fuel system was dirty for a long, long time and eventually fixed itself.
Who knows
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