I've not bin on my malaguti 125 for 2 days was running fine now won't start

You can add for possible causes:
clogged oil filter
worn oil pump
clogged oil pump pick up
faulty oil pressure sender
very low oil level

could be that condensation formed in the ht cable/cap/coil. disconnect them and spray all their contacts with contact cleaner and see how it goes.

fuel pump going out and it will not run at all
coil problem will starteasy but fail after running for a while
fuel pump relay again it is running after starting and if the relay is no good , it will not pump fuel
try having the fault codes read first then have the faulty sensor replaced

clean/replace air filter

You have to clean out the carburetor, lots of build up inside of it.

I DON'T KNOW WHAT A PLOT IS? BUT SOUNDS LIKE YOUR CDI..THE ONLY ELECTRICAL DEVICE THAT CAN NOT BE CHECKED WITH A METER..SO IF EVERYTHING ELSE CHECKS GOOD ITS THE CDI..HAVE A NICE DAY..

The battery is underneath the rear seat.Lift the driver's seat, remove the two bolts holding the rear passenger seat and you will see the battery.This will help I thinkwww.malagutiscooterspares.co.uk/spares/epcimages/7585/14.jpg

Lift the driver's seat, remove the two bolts holding the rear passenger seat and you will see the battery.This will help I thinkwww.malagutiscooterspares.co.uk/spares/epcimages/7585/14.jpg