Anyone Notice a strange sound after riding the bike?

TitoZilla · Jun 16, 2013

Hyperstrada Strange Engine Sound After Ride - YouTube

Made a video.. Not sure what the sound could be.. I have never heard a Ducati make a sound like this after riding it each time. You may have to turn your speakers up to hear it...

SuperTen · Jun 17, 2013

Mine makes like a big groan/sigh every now and then. Usually when you get near it, does not need to be on.

psimon55 · Jun 17, 2013

SuperTen said:
Mine makes like a big groan/sigh every now and then. Usually when you get near it, does not need to be on.

Same here... sometimes it does it, sometimes it does not after a ride.

gatdammit · Jun 17, 2013

The big groan or fart sound is fuel pressure venting. It's pretty embarrassing and the 796 HMotard I was in MSF class with made no such noise after shutting down.

Tito, that's a new sound to me. Does it do it with ignition off? Is it consistent? Stronger with longer rides/higher temps?

R6chase · Jun 17, 2013

Mine does the same as super described, every 10 minutes or so if the engine is still warm it groans. My girlfriend likes to call it the Duc quacking... Tito that's a new sound for me, but it does sound like it could be from the fuel pump.

TitoZilla · Jun 17, 2013

I considered the fuel pump... My uncle doesn't think so.. It still made the sound even after the engine and key were turned off. It seems to be louder after longer rides.. That could be my imagination. It is consistent as well.

mentalist · Jun 17, 2013

Is not a purge valve fitted to the evap system???

gatdammit · Jun 17, 2013

It may be something related to emissions charcoal can, as many have already removed it.

mentalist · Jun 17, 2013

gatdammit said:
It may be something related to emissions charcoal can, as many have already removed it.

Thats what i mean by purge valve on the evap system,
A lot of fuel injection vehicles purge even after the vehicle has stopped

Stradasphere · Jun 17, 2013

It does sound like a vacuum valve opening and closing. I have not heard this on mine though. Maybe as the engine or fuel tank cools after a long ride a vacuum is being formed and the Evap canister has a valve that is opening to relive the vacuum.

gatdammit · Jun 17, 2013

That's a pretty rapid cycle for a non-powered vacuum valve. Wouldn't it slow down as pressure equalized?

TitoZilla · Jun 17, 2013

It eventually slows down and completely stops.. I still have my emissions canister on, so I wouldn't be surpised if that is what the sound is related to.

gatdammit · Jun 17, 2013

It's not hard to get dealer to remove if you're not in Cali. My dealer initially replied with something non-incriminating, like, "Tampering with a federally mandated device would be illegal...", only to find the techs had already **** canned it.

Stradasphere · Jun 17, 2013

If your handy at working on bikes or cars here are some tips on removing the canister.

http://hyperstrada.com/mechanical-technical/242-canister-removal-diy.html

Mibanez3 · Jun 23, 2013

my bike does the same thing, ive put 4k miles on it and the evap canister was removed since day one.

TitoZilla · Jun 25, 2013

Mibanez3 said:
my bike does the same thing, ive put 4k miles on it and the evap canister was removed since day one.

Maybe it's just the white colored models! I still haven't spoken to the dealership, but I will give an update.

Anyone Notice a strange sound after riding the bike?

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