Water Intake Blockage; Clearing A Lodged Impeller - TOHATSU MD 25B2 JET Owner's Manual

M25 Jet Drive

Water Intake Blockage

A rotating impeller could cause injury if contact is made with hands, clothing,
or tools. To avoid injury, keep hands and clothing away from the inlet or outlet
of the jetdrive, regardless of whether the boat is in the water. Secure tools
and loose items to avoid being struck by projectiles as a result of contact with
the rotating impeller, and to prevent damage to the impeller.
A large amount of debris being drawn into the water intake may result in a
loss of power. Intake suction holding debris against the grate will result in
restricted water flow. Shutting the engine off may allow the debris to fall off
the intake grate allowing full power to be restored. If debris does not fall off
the intake grate, the engine must be shut off and debris physically removed
from the grate.

Clearing A Lodged Impeller

Rotating the flywheel to free a lodged impeller can accidentally start the
engine, resulting in serious injury or death. Always turn the ignition key or
lanyard stop switch to the "OFF" position and remove all spark plug leads
from the spark plugs.
It is possible for debris to lodge between the impeller and jet housing wall,
especially after the engine has been stopped. This will lock the driveshaft and
will prevent the engine from being able to crank over for starting. Following
are steps for dislodging the impeller.
1.
Position lanyard stop switch to the "OFF" position.
2.
Remove spark plug leads to prevent the engine from accidentally starting.
3.
Remove flywheel or rewind cover and rotate the engine flywheel
counterclockwise.
If this does not dislodge the impeller, it will be necessary to remove the six screws and water intake
housing.
WARNING
WARNING
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