Modern Vespa

hi i bought a MP3 500 sport ABS 2014 with a shot engine i have changed the engine for a very low miles one
because i have never had it running till now amazingly it started first time but will only tick over, is it because of the seat switch because i have not fitted the panels or seat yet
when it starts the ABS and ASR lights are flashing and i thought i had a problem but i have found they flash till you go over 5 mph
a big thanks in advance Bill

hello bill and welcome, yes fella without seat sensor will only go to rev but be limited. ask us another question.

hi thanks for the reply, i see you are in the UK also where may i ask?
Do you ride a MP3

no problems bill we are all here for the same reason. we suck at choosing our rides I was until last year living in south east London, but I now reside in sunny Rochdale I currently have a small 250 mp3 but wish I had kept the piaggio x10 I sold a few months ago.

hi i put a 3.3k resistor to take care of the seat switch stripped of the rest of the pannels to check and clean the tilt lock, removed the speed sensors cleaned and checked them. It will start first time the abs and asr lights both flash together the large tilt light flashes and if you switch switch on the tilt lock the other tilt lock light comes on
with the tilt lock on it will only rev to exactly 2000 and with the tilt lock off it will rev to 2500 and up to 3000 but fluctuating like trying to rev higher
the battery is showing 12.7v and 14 when running
the cover is off the air filter could that make a differance
i removed and cleaned the spark plugs,
drained the fuel and put in new fuel
is there a fuel filter anywhere??
i can feel the fuel pump pumping

Next i am going to remove the fuel injector and have a good look at the throttle body
ANY IDEAS ANYONE

could this be why it will not rev on the stand

N.B.THE DEVICE PREVENTS IMPRESSING ON THE REAR HIGH SPEED ROTATIONWHEEL WITH THE VEHICLE ON THE CENTRE STAND. IT IS RECOMMENDEDNOT TO INSIST WITH THE THROTTLE GRIP IN THIS PARTICULAR CONDITION.