Polaris MSX 110 Owner's Manual For Maintenance And Safety page 50

Principles of Operation
The engine is directly coupled to a driveshaft. When
running, the driveshaft rotates the impeller. The
impeller is positioned so that water is drawn up from
beneath the watercraft. The water travels through the
impeller and is accelerated, producing thrust to move
the watercraft forward. Pulling or squeezing the
throttle lever increases engine speed (watercraft speed).
Turning the handlebar pivots the jet pump nozzle
(water outlet) which controls the watercraft's direction.
The throttle must be applied in order to turn the
watercraft.
WARNING
The engine exhaust from this product contains
chemicals known to cause cancer, birth defects
or other reproductive harm.
Operate this vehicle only outdoors or in
well-ventilated areas.
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Engine Break-in Procedure
The break-in period for your new Polaris watercraft is
defined as the first 12 hours of operation. No single
action on your part is as important as following the
procedures for a proper break-in. Careful treatment of
a new engine will result in more efficient performance
and longer life for the engine.
CAUTION
Excessive heat build-up during the first 12 hours
of operation will damage close-fitting engine
parts. Do not operate at full throttle or high
speeds for extended periods during the break-in
period. Do not carry passengers during the
break-in period.
Use of non-recommended oil may cause serious
engine damage. Always use the recommended
oil for your Polaris watercraft.
OPERATION
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