Crossing Waves; Post-Operation Checks - Yamaha EXCITER SE Owner's Manual

3
O
PERATION

CROSSING WAVES

You won't always have flat, smooth
water. There will be waves, wakes from
other boats, etc.
The best way to cross waves or wakes
is with the least "jolt" to you and the
boat. Small waves are not as difficult to
cross as larger waves. Crossing a
sharp wave gives more of a jolt than a
broad wave.
To cross a wave, change your speed
and the angle that you cross the wave.
Usually, a slower speed and "quarter-
ing" the wave at an angle will reduce
the "jolt."
Two other things you may notice: first is
that crossing a group of waves is not as
easy or smooth as crossing just one
wave; second, when you "quarter" the
wave the boat will try to steer away
from the wave. When crossing at a 45°
angle, you may not notice this, but at a
smaller angle of about 10° it can be
very strong. Be prepared to steer as
necessary.
SHARP WAVES
BROAD WAVES
WAVE
90°
POST-OPERATION
CHECKS
1) After putting the Jet Boat on the
trailer, flush the cooling system to
prevent it from clogging up with salt,
sand, or dirt. Refer to page 4-1 for
the cooling system flushing proce-
dure.
2) Drain residual water from the
exhaust system by starting the
engine then alternately pushing the
throttle lever up to half throttle and
back for 10 to 15 seconds.
CAUTION:
Never run the engine at full throttle
or for more than 15 seconds while
the boat is out of the water. The
engine may overheat and/or seize.
3-20
45°
10°
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