Operating in Shallow Water
The life of the impeller and water intake can be greatly increased by avoiding
the intake of sand and gravel. The intake suction will act like a dredge when the
water intake comes close to the bottom. It is better to stop the engine and drift
up to shore when landing, and to shove off with an oar when leaving. The
engine can idle through areas of water less than 61 cm (2 ft) deep, but there
should be more than 61 cm (2 ft) of water under the boat when increasing
speed to reach full plane.
Once the boat is on plane, the boat speed will prevent the ingestion of gravel
and other debris from the bottom. The suction is still present, but the water
intake passes too quickly over the bottom to allow debris to be drawn into the
water intake.
When boating through shallow water areas, choose a course of travel that
avoids sharp rocks and other underwater obstacles that could damage the
boat. Running the boat through these areas on full plane may be helpful as the
boat will be riding higher in the water. If the boat gets stuck on the bottom,
immediately stop the engine and move the boat to deeper water.
How the Jet Drive Operates
A jet driven boat has substantially different handling characteristics compared
to a propeller driven boat. It is recommended that the operator adjusts to these
characteristics by experimenting in open water at both high and low speeds.
OPERATION
eng 37
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