OK I have found the solution pretty simple really probably why it was not posted up
To reset the OIL INSP message post service:
Press and hold the mode switch on the left (clutch) handle bar (blue button on my XT125X)
While still holding the mode button switch the ignition on, keep holding the mode button until OFF appears in the display.
All done.
This SHOULD NOT under any circumstances be done unless the bike has been properly serviced !!