amber engine warning light
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sammy123
Lurker
mp3 250cc 2008
Joined: 08 Mar 2019
Posts: 1
Location: lincoln
Fri Mar 08, 2019 6:50 am quote
hi all,
I have a 2008 MP3 250cc which has an amber warning light over 20mph.
As I have a newer 300cc MP3 I need to sell the 250cc so do not want to spend a fortune at a main dealer to find and repair the fault.
It starts first time and never misses a beat when out on the road.
Any ideas of what it might be would be welcome.
jimc
Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: 26 Aug 2007
Posts: 38630
Location: Pleasant Hill, CA
Fri Mar 08, 2019 9:14 am quote
Your voltage regulator has gone phut. To confirm, get a voltmeter and measure the battery voltage with the bike revving over 3000rpm. The voltage shouldn't rise above 14.8V. If you measure 17V or so then you need a new regulator, and possibly a new battery as the over-voltage kills them in double-quick time.
Maksor
Ossessionato
Gilera Fuoco 500ie
Joined: 11 Oct 2009
Posts: 4176
Location: Netherlands Olst
Sat Apr 13, 2019 11:32 pm quote
exhaust snesor could be the problem
slomo_scooterbabe
Member
2020 Piaggio MP3 500 hpe
Joined: 07 May 2019
Posts: 23
Location: Midwestern USA
Tue May 07, 2019 9:56 pm quote
Fixed mine with new O2 lambda sensor + spark plug
Had this problem on my 2007 MP3 250 and fixed it with a new lambda O2 sensor plus spark plug.
Land of 10,000 Scoots Rally   vespa scooterwest scooter west Motorsport Scooters   Yelcome Leather Top Cases and Roll Bags for Piaggio Vespa PX LX LXV GTS GTV
 
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