Suzuki DF2.5 Owner's Manual page 20

4. Grab the handle on the back of the motor
lower cover and tilt the motor all the way up
until it is automatically locked in the fully
tilted up position by the tilt up lock arm 1.
NOTICE
If you use the throttle grip handle to raise
or lower the motor, the handle may break.
Never use the throttle grip handle to raise
or lower the motor.
18
To lower the motor back down, pull the motor
slightly toward you, pull up on the tilt up lock
arm 1 and slowly let the motor down.
NOTICE
If you use the tilt up lock arm to hold the
motor in the fully tilted position for traile-
ring, the tilt up lock arm could release
resulting in damage to the motor.
When trailering your boat, never use the
tilt up lock arm to hold the motor in the
fully tilted position.