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22
Sacrificial anode.
To protect the motor against electrochemical corrosion, due to
the presence in its structure of many different materials, a
sacrificial anode has been applied.
The anode will be subject to a strong corrosion, so you have to
remove the scales from the surfaces of the anode periodically.
Failure to clean it, will affect its effectiveness.
Do not paint the anode, for this would render it
ineffective.
When the corrosion compromise its functionality, you have to
replace
it.
Picture No.52
Replacement of the propeller.
The propeller is one of the components, which have a great
influence upon the performance of the motor. An unsuitable or
damaged propeller can cause serious damages to the motor
besides reduce the performance.
To replace the propeller do as follows:
- wait until the motor has cooled down and remove the top
cowling;
- remove the spark-plug cap, to avoid an accidental
start during the operations of replacement of the
propeller;
###
protect your hands using strong gloves and insert a
wooden lump between the propeller blades and the anti-
cavitation plate, to keep the propeller still.
###
remove the self stopping nut, the washer and the
propeller;
###
spread the propeller shaft with water-repellent grease;
###
make sure, that the drive propeller pin is centered on the
shaft;
###
by hand insert the propeller making sure that it gets
correctly into the drive pin;
###
insert the washer and by hand screw the self-locking nut;
###
insert a wooden lump between the propeller blades and
the anti-cavitation plate.
###
keep the propeller pressed against the pin and screw tight
the
nut.
Picture No. 53.
Storage
To help the endurance of your motor, you must carry
out properly the following storage operations:
Clean the motor and the cooling-water passages.
Switch off the engine as shown in the section "stopping for a
long period of storage ".
Remove the fuel-line connections from the motor.
Empty the float chamber.
Remove the spark-plug and pour engine-oil into the hole; turn
the flywheel by hand to distribute the oil in the cylinder; replace
the spark-plug.
Change the gearbox-oil.
Check the screws torque.
Grease all the components as shown in the greasing chart.
Inspect the anode.
Empty the fuel tank.
Store the motor in the vertical position and in a dry, not to cold
place.
The storage operations must be carried out by
qualified staff.
