Sun Nov 28, 2021 12:23 pm

Member
2005 GT200, 2018 GTS, 2022 GTS, 1965 Allstate
Joined: 10 Aug 2017
Posts: 33
Location: Chicagoland
 
Member
2005 GT200, 2018 GTS, 2022 GTS, 1965 Allstate
Joined: 10 Aug 2017
Posts: 33
Location: Chicagoland
Sun Nov 28, 2021 12:23 pm linkquote
Hi All,
just had my speedometer dial act all wonky on me.
I'm used to the mechanical cable speedometers (pre-2015), and I'm not surely exactly how the newer "electronic sensor" speedometers work.
Curious if someone could guide me in the right direction on what to check or if anyone else has had this issue?
I've attached a link to the video.
Thanks!

Sun Nov 28, 2021 1:08 pm

Ossessionato
1979 P150X, 1983 P200E, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 2912
Location: Veria, Greece
 
Ossessionato
1979 P150X, 1983 P200E, 1988 T5, 1995 PX200E, 2011 Yamaha Fazer 600 S2
Joined: 02 Aug 2015
Posts: 2912
Location: Veria, Greece
Sun Nov 28, 2021 1:08 pm linkquote
Probably dead. The needle or needle's "stepper" motor looks like it's gone out sync...
Mon Nov 29, 2021 12:33 am

Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
 
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3766
Location: East Anglia, UK
Mon Nov 29, 2021 12:33 am linkquote
Yeah, seen this a time or two on several different brands of bike. Not on a Vespa up till now. However, I disconnected the battery on a Burgman that had this trouble and left it disconnected for over an hour. What that did was reset the ECU. After connecting up again the Speedo was fine. No more issues. It worked on a Triumph motorcycle too. But failed to work on a Yamaha xmax. So it's worth a try before doing anything else. If it doesn't work the speedo head unit may have a poorly fitted connector or, perhaps some corrosion on one pin, or the Speedo is faulty.

Just one other point, has any work been carried out on the bike prior to this or recently?
  DoubleGood Vespa Design  

All Content Copyright 2005-2022 by Modern Vespa. All Rights Reserved.

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.

Shop on Amazon Smile with Modern Vespa

[ Time: 0.0256s ][ Queries: 6 (0.0068s) ][ Debug on ][ 211 ][ Thing One ]