OP
@spencerkellis avatar
UTC

Member
2019 Vespa GTS300 Super; 2004 Vespa GT200
Joined: UTC
Posts: 47
Location: Herriman, UT
 
Member
@spencerkellis avatar
2019 Vespa GTS300 Super; 2004 Vespa GT200
Joined: UTC
Posts: 47
Location: Herriman, UT
UTC quote
OK, unfortunately, I'm not sure how good you can hear the actual sound, but it starts at about 3.5 second in and last for a few seconds:

https://vocaroo.com/i/s1cwWYMx4J2K

There are 3 main noises here: the main engine noise, the wind noise, (which are both normal) and this sound I try to describe here, the one I have a question about:

It's almost like if you briefly held a plastic drinking straw against a fan for a second. Like a slight buzzing sound. This will sometimes occur when ever-so-slightly holding the throttle, usually at about 18-19 MPH, but sometimes a bit faster, maybe 25-30 MPH.

It seems to come from right under my feet, or actually slightly towards the back and the right, but underneath. So I would assume something with the muffler, but not sure.

I have tried removing the metal plate on the outside of the stock muffler, like maybe it was shaking, but that seems tight and ok. I also don't think it is the license plate cover at all. I have also loosened and re-tightened the muffler clamp.

I think my next step is to remove the muffler altogether and check for something loose.

Am I just being overly sensitive to the noise? Maybe. I'm mostly curious what it might be.

Anyone have any ideas?
@gtdespatchcourier avatar
UTC

Molto Verboso
GTS 300ie
Joined: UTC
Posts: 1660
Location: Sunshine Coast, Australia
 
Molto Verboso
@gtdespatchcourier avatar
GTS 300ie
Joined: UTC
Posts: 1660
Location: Sunshine Coast, Australia
UTC quote
The castle nut cover and split pin which hold on the back wheel can sometimes rattle.
DoubleGood Design banner

Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.

Buy Me A Coffee
 

Shop on Amazon with Modern Vespa

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com


All Content Copyright 2005-2024 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0094s ][ Queries: 3 (0.0028s) ][ live ][ 313 ][ ThingOne ]