Suzuki DF70A Owner's Manual page 52

OPERATION IN SHALLOW WATER
When operating your boat in shallow water, it
may be necessary to tilt the motor higher than
the normal trim angle. When you tilt the motor
beyond the normal trim angle, however, you
should only operate the boat at slow speeds.
After returning to deep water, be sure to lower
the motor to the normal trim angle.
 WARNING
When the motor is beyond the maximum trim
position, the swivel bracket will not have side
support from the clamp bracket and the tilt
system will be unable to cushion the engine if
the lower unit strikes an obstruction. This
could lead to occupant injury. In addition,
beyond the maximum trim position, the water
intake holes may be above the water line,
which can result in severe engine damage
from overheating.
Do not operate the engine above 1500 r/min or
operate the boat in a planning attitude with
the engine beyond the maximum trim posi-
tion.
NOTICE
If the motor hits bottom, serious damage can
occur.
Do not allow the motor to hit bottom. If the
motor does strike bottom, inspect it immedi-
ately for damage.
OPERATION IN SALT WATER
After operating the motor in salt water, you
should flush the water passages with clean,
fresh water as outlined in the FLUSHING THE
WATER PASSAGES section. If you do not flush
the water passages, salt can corrode the motor
and shorten its life.
OPERATION IN FREEZING WEATHER
When operating your outboard motor in freez-
ing temperatures, you should keep the lower
unit submerged in the water at all times.
When taking motor out of the water, stand it up
in a vertical position until the cooling system
drains completely.
52
NOTICE
If you leave your outboard motor out of the
water in freezing temperatures with water still
in the cooling system, the water can freeze
and expand, causing severe damage to the
motor.
When your outboard is in the water in freezing
temperatures, keep the lower unit submerged
in the water at all times. When the motor is
stored out of the water in freezing tempera-
tures stand it up in the vertical position so
that the cooling system drains completely.