Honda EM50is Manuel De L'utilisateur page 30

3.Turn the engine switch to the START position and hold it there until
the engine starts.
(FT, GT, ITT types)
(UT, RT types)
CAUTION:
Do not use the starter motor for more than 5 seconds. If the engine
fails to start, release the key, and wait at least 10 seconds before 
operating the starter motor again.
NOTE:
When the speed of the starter motor drops after a period of time, it is
an indication that the battery should be recharged.
4.After the engine starts, let the engine switch return to the ON 
position.
(FT, GT, ITT types)
28
(UT, RT types)
START
ON
OFF
ENGINE SWITCH
ON
START
ENGINE SWITCH