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Front forks , Swushh, sound hitting whoops hard.

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I noticed this weekend when I nail a whoop hard there is a Swushh sound that comes from the forks. Performance is fine, no leaks at seals.

Average whoops no sound, just when I nail deep one hard, probley a close bottom of the fork.

 

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12 minutes ago, ttreewalkerr said:

 

I noticed this weekend when I nail a whoop hard there is a Swushh sound that comes from the forks. Performance is fine, no leaks at seals.

Average whoops no sound, just when I nail deep one hard, probley a close bottom of the fork.

 

 

Probably have to list the year of the bike. But my 16' makes a noise on hard hits. 

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Lol,,, it's a 2002 wr426. Yz Acerbis 3.4 tank with yz seat. Full rebuild on motor, toasted crank bearing 2 yrs ago, then 5th gear went out, so tore it back down. So gonna keep it, 2 kicks cold, 1 kick hot.

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Now that you mention pipe isn't loud enough,,,,,, I did put in fresh pack and have a new helmet.
I am probably just hearing it now.

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Might be fluid cavitation. Do you notice it on the compression stroke or just as it starts to rebound?



Has the fork oil been changed recently and/or any custom work for your weight or riding style?

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Seemed like compression stroke.
I did have some fluid leak from seal,, I used the mylar seal tool and got dirt out of seal,, I added an ounce, rode fine.

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