OP
UTC

Enthusiast
Piaggio MP3 300 HPE
Joined: UTC
Posts: 66
Location: Croydon
 
Enthusiast
Piaggio MP3 300 HPE
Joined: UTC
Posts: 66
Location: Croydon
UTC quote
This has been going on for a while but is now getting louder. If I'm in stop-go traffic and going say under 20 mph, if I hover around the 4-5000 rpm mark, the engine makes a funny rattling sound - like a cowbell rattling. It stops when I pick up speed or go over that range. Also if the revs are kept below 4000, no problem. Any ideas?
UTC

Molto Verboso
2015 MP3 500 ie Business
Joined: UTC
Posts: 1086
Location: Belgium
 
Molto Verboso
2015 MP3 500 ie Business
Joined: UTC
Posts: 1086
Location: Belgium
UTC quote
Have you inspected the CVT components?
OP
UTC

Enthusiast
Piaggio MP3 300 HPE
Joined: UTC
Posts: 66
Location: Croydon
 
Enthusiast
Piaggio MP3 300 HPE
Joined: UTC
Posts: 66
Location: Croydon
UTC quote
I'm afraid not as I would not know what to look for. But next time it is in for service I will ask them to.

Thanks
@web-tech avatar
UTC

Veni, Vidi, Posti
2008 MP3 500, 2013 BV350, 2020 Vespa Sei Giorni, 2008 Vespa S150
Joined: UTC
Posts: 8926
Location: Ashburn, Va. Home to the Internet
 
Veni, Vidi, Posti
@web-tech avatar
2008 MP3 500, 2013 BV350, 2020 Vespa Sei Giorni, 2008 Vespa S150
Joined: UTC
Posts: 8926
Location: Ashburn, Va. Home to the Internet
UTC quote
Usually just the rollers rattling around, should be no biggie. If It doesn't get worse don't worry about it.
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43214
Location: Pleasant Hill, CA
 
Moderaptor
@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43214
Location: Pleasant Hill, CA
UTC quote
A tinkling sound at lower revs is usually the clutch pads' backplate becoming loose. My own fix is to secure the pins in the backplate with some JBweld. They're not under any particular stress, it's just to stop them wobbling around.
OP
UTC

Enthusiast
Piaggio MP3 300 HPE
Joined: UTC
Posts: 66
Location: Croydon
 
Enthusiast
Piaggio MP3 300 HPE
Joined: UTC
Posts: 66
Location: Croydon
UTC quote
Thanks all. That's reassuring.
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