Honda GC135 Owner's Manual page 18

OPERATION
2. Adjustable-Speed Engines:
Move the throttle lever away from the SLOW position, about 1/3 of
the way toward the FAST position.
Some engine applications use a remotely-mounted throttle control
rather than the engine-mounted throttle lever shown here.
THROTTLE LEVER
Fixed-Speed Engines:
Move the ignition switch lever to the
ON
position.
Some engine applications use
a remotely-mounted ignition switch
control rather than the engine-mounted ignition switch lever shown
here.
IGNITION SWITCH LEVER
16