2009 MP3 500 Engine won't start
OP
Rank Bajin
Sat, 04 Mar 2023 14:12:57 +0000
Hooked
MP3 - 500
Joined: Sun, 11 Jan 2009 23:51:19 +0000
Posts: 427
Location: Alabama, USA
 
OP
Rank Bajin
Hooked
MP3 - 500
Joined: Sun, 11 Jan 2009 23:51:19 +0000
Posts: 427
Location: Alabama, USA
Sat, 04 Mar 2023 14:12:57 +0000 quote
The engine won't kick over when pulling on the right brake lever, but will when pulling on the left.

I'm worried that if the left lever suddenly quit, I'd really be stuck.
sbaert
Sat, 04 Mar 2023 17:52:10 +0000
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 958
Location: Belgium
 
sbaert
Addicted
2015 MP3 500 ie Business
Joined: Tue, 29 Oct 2019 17:22:26 +0000
Posts: 958
Location: Belgium
Sat, 04 Mar 2023 17:52:10 +0000 quote
And the question is . . . . ???
JKJ-FZ6
Sat, 04 Mar 2023 18:24:58 +0000
Ossessionato
BV350, Primavera 150, Yamaha Zuma 125
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Location: Twin Cities, Minnesota
 
JKJ-FZ6
Ossessionato
BV350, Primavera 150, Yamaha Zuma 125
Joined: Thu, 06 Jun 2013 13:22:21 +0000
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Location: Twin Cities, Minnesota
Sat, 04 Mar 2023 18:24:58 +0000 quote
sbaert wrote:
And the question is . . . . ???
Is the right brake lever switch broken?
pinheadh78
Sat, 04 Mar 2023 20:18:23 +0000
Hooked
2016 Mp3 500ie Sport
Joined: Sun, 28 Jul 2019 16:17:25 +0000
Posts: 164
Location: California
 
pinheadh78
Hooked
2016 Mp3 500ie Sport
Joined: Sun, 28 Jul 2019 16:17:25 +0000
Posts: 164
Location: California
Sat, 04 Mar 2023 20:18:23 +0000 quote
Some additional diagnostic info might help narrow down the issue.

Are there other symptoms with the brake leaver?
Are any other systems affected by the brake being engaged or idled?
Brake lights light up when the brake leaver is engaged?
Do the brake calipers engage and the bike does not role / move when the brake is on?
Any recent rough weather, muddy roads, or other recent source of corrosion?

This is the parts diagram for the 2009 MP3 500ie. It indicates as "stop button" (parts 11) which appears to be the part that would engage with the brake. It might be worth removing the plastic covering the steering tiller to expose those connections for inspection for damage.

https://www.parts-piaggio.com/piaggio-scooters/500-PIAGGIO-SCOOTER/MP3/2009/MP3-500/Electrical-system/Selectors--Switches--Buttons/1209/42/20072/2687
jimc
Sat, 04 Mar 2023 20:46:23 +0000
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Location: Pleasant Hill, CA
 
jimc
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Posts: 42054
Location: Pleasant Hill, CA
Sat, 04 Mar 2023 20:46:23 +0000 quote
For goodness sake, just replace the RHS brake switch. Very cheap and easy to do. Keep a spare handy too, these switches get a lot of use and can fail.
OP
Rank Bajin
Sun, 05 Mar 2023 14:46:23 +0000
Hooked
MP3 - 500
Joined: Sun, 11 Jan 2009 23:51:19 +0000
Posts: 427
Location: Alabama, USA
 
OP
Rank Bajin
Hooked
MP3 - 500
Joined: Sun, 11 Jan 2009 23:51:19 +0000
Posts: 427
Location: Alabama, USA
Sun, 05 Mar 2023 14:46:23 +0000 quote
Thanks for the various suggestions, and yes the lights do come on and the brakes do tighten up on the calipers.

I like the jimC suggestion of replacing the switch, however I must confess to suffering a complete fear of anything electrical. So could someone point me in the direction of where the switch is located.

Thanks again for all your input.
jimc
Sun, 05 Mar 2023 16:59:42 +0000
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: Sun, 26 Aug 2007 20:16:15 +0000
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Location: Pleasant Hill, CA
 
jimc
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: Sun, 26 Aug 2007 20:16:15 +0000
Posts: 42054
Location: Pleasant Hill, CA
Sun, 05 Mar 2023 16:59:42 +0000 quote
The brake lever operates the switch directly. Just uncover the rear of the brake lever, unclip the wires from the switch, unscrew the old switch and screw in a new one. Reconnect the wires. Button up, ride off.
WEB-Tech
Tue, 07 Mar 2023 00:49:28 +0000
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350, 2020 Vespa Sei Giorni, 2008 Vespa S150
Joined: Sat, 13 Oct 2012 12:48:57 +0000
Posts: 8870
Location: Ashburn, Va. Home to the Internet
 
WEB-Tech
Veni, Vidi, Posti
2008 MP3 500, 2013 BV350, 2020 Vespa Sei Giorni, 2008 Vespa S150
Joined: Sat, 13 Oct 2012 12:48:57 +0000
Posts: 8870
Location: Ashburn, Va. Home to the Internet
Tue, 07 Mar 2023 00:49:28 +0000 quote
As Jim says the switch is easy to replace, just be gentle with it cuz it is plastic.
OP
Rank Bajin
Thu, 09 Mar 2023 19:11:02 +0000
Hooked
MP3 - 500
Joined: Sun, 11 Jan 2009 23:51:19 +0000
Posts: 427
Location: Alabama, USA
 
OP
Rank Bajin
Hooked
MP3 - 500
Joined: Sun, 11 Jan 2009 23:51:19 +0000
Posts: 427
Location: Alabama, USA
Thu, 09 Mar 2023 19:11:02 +0000 quote
Thanks guys for all your input, parts are on order with AF1 Racing.
  DoubleGood Design  
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