airbox snorkels

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Nails
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airbox snorkels

Post by Nails »

(Gosh, the carbs were a PITA to get off, and they sure are filthy.)

I'm talking about the airbox near the carbs, not the one with the filter. I think it has a lot to do with the nice torque.

And I'm talking about the snorkels that are part of the boots and that extend into the airbox -- I understand their only purpose is to muffle induction noise.

Has anyone cut these snorkels off? I've done that on dirt bikes and got a little more snap, but mostly just a happy noise. (I'm putting different tips on the exhaust, also for more happy noise.) And cutting them off sure would help putting the boots back on.
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Re: airbox snorkels

Post by Nails »

After a little research I found a lot of sources about noise reduction (or addition, as the case might be). This one adds a possible performance angle: https://motorcycleinfo.calsci.com/Airboxes.html.

This discusses the difference between a snorkel and baffle (https://fz07.org/thread/411/airbox-snorkel?page=4). Start at page 4 -- lots of crap up to then.

Here's a bunch of refereed comments for one particular bike: http://faq.f650.com/GSFAQs/SnorkelFAQ.htm

For a piggly bike like the XII, I'm pretty sure cutting off the snorkel would have no perceptible change but a new nice noise.

At $44 each (PN 14073B), it just isn't worth the gamble. But if someone had already tried this ...
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Re: airbox snorkels

Post by voyager55 »

It's a touring bike- suppose to be quiet
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Re: airbox snorkels

Post by Nails »

Oh heck no.
This won't rile the neighbors, but some induction noise sure makes accelerating fun.
Ask anybody with a Cobra ;)
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Re: airbox snorkels

Post by Draxxis »

I like my Cobra pipes :-) They aren't too loud until I hit about 3500RPM
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