Checking the starter motor
– Disconnect the battery negative terminal and remove the star-
ter motor.
– Connect the negative terminal of a 12 V battery to the starter
motor casing and momentarily connect the battery positive
terminal with starter motor connector 3 (use thick cables).
– When the electrical circuit is closed, the starter motor should
begin to turn.
– If that is not the case, replace the starter motor.
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Workshop manual RR 4T - 400 - 450 - 525