Modern Vespa : amber engine warning light

amber engine warning light

OP sammy123 UTC details Lurker mp3 250cc 2008 Joined: UTC Posts: 1 Location: lincoln
OP sammy123 Lurker mp3 250cc 2008 Joined: UTC Posts: 1 Location: lincoln	UTC 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 UTC details Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 44337 Location: Pleasant Hill, CA
jimc Moderaptor The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300 Joined: UTC Posts: 44337 Location: Pleasant Hill, CA	UTC 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.

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Maksor UTC details Ossessionato Gilera Fuoco 500ie Joined: UTC Posts: 4552 Location: Netherlands Olst
Maksor Ossessionato Gilera Fuoco 500ie Joined: UTC Posts: 4552 Location: Netherlands Olst	UTC quote exhaust snesor could be the problem

slomo_scooterbabe UTC details Enthusiast 2023 Piaggio MP3 530 Joined: UTC Posts: 51 Location: Midwestern USA
slomo_scooterbabe Enthusiast 2023 Piaggio MP3 530 Joined: UTC Posts: 51 Location: Midwestern USA	UTC 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.

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