Media For Engine Operation; Coolant; Battery And Battery Charging Unit - Rotax 125 MAX evo Einbauanleitung Und Betriebsanleitung

ROTAX 125 MAX evo, Junior MAX evo, Mini MAX evo, Micro MAX evo
3.

Media for engine operation

3.1.

Coolant

A mixture of distilled water and aluminium-compatible antifreeze has to be used for the coolant.
Follow the antifreeze specifications to ensure protection against freezing to a temperature of -20°C.
 Note: Please follow the local regulations concerning the use of antifreeze on the race
track.
 Open radiator cap and fill the system with coolant (approx. 0,7 litre / 0,185 gal for
the complete cooling system).
 Close radiator cap.
 Warning: The engine temperature should not exceed 85°C / 185°F exceeding the engine
temperature could lead to serious engine failure.
 Note:
With the standard location of the radiator, venting of the cooling system is not
required.
3.2.

Battery and battery charging unit

See Fig. 1.
Power for the ignition unit and electric starter is only supplied from the battery. With a fully charged
battery of 12 V and 6,5 Ah the engine can be started approximately one hundred times and
operated over a period of approximately five hours. With the battery voltage decreasing to
approximately 11 V the point will be reached when the battery voltage is too low to generate a
spark for ignition.
 Attention: The life span of the battery will be drastically reduced by exhausting the battery
completely. Therefore it is recommended to fully re-charge the battery before and
after any operation of the kart.
 Note: It is recommended to always carry a charged spare battery. The installed battery
should be replaced by a fully charged battery before it is completely exhausted.
 Note: If the spark plug will be removed, to check if the battery still generates a spark,
consider the following: with the spark plug removed it is easier for the electric starter
to crank the engine, which reduces current absorption of the electric starter resulting
in battery voltage adequate to generate a spark. But if the spark plug is fitted again it
may happen that the engine won't start.
 Note: To charge a battery, the battery charging unit specified by ROTAX and available as
an accessory should be utilized (charging unit, part no. 265148). When using the
lithium battery available as spare part, the battery charger Optimate Lithium (part no.
581325) is recommended.
 Note:
To be able to use the battery charger in your home country pls. contact your nearest
authorized ROTAX distributor or one of his ROTAX service center to receive an
adapter plug resp. an adapter cable.
 Note: This battery charger includes the feature that when the target voltage is reached it
will switch over automatically to maintenance charge. Therefore overcharging with
the result of ruining the battery will be impossible.
Seite/page 73/98 Ausgabe/Edition 11/2014