Malaguti SPIDER MAX GT 500 Manual Diagnóstico página 243

SPIDER MAX 500
When the CO percentage is correct, the HC (PPM) value is above the maximum allowable value, check the:
- spark plug
- valve clearance
- timing
- exhaust valve sealing.
When the central unit needs to be replaced, always reset the TPS and set the central unit initial trimmer value (if
possible).
Check again the CO value anyway.
22. FAN CONTROL CIRCUIT
TERMINAL
19 - 23
22.1 Circuit diagram
To the starter motor
Sch. 13
The fan system is supplied by a relay under the dashboard and controlled by the injection central unit.
The injection central unit controls the fan according to the temperature measured on the engine.
In case the fan rotates for a longer period than usual, before checking the electrical system, verify with care the:
- reservoir cap level;
- second radiator bleeding (motorcycle right hand side);
- outlet bleeding from the head;
- thermal expansion valve operation ;
- pump operation.
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CONDITIONS
Move the key switch to the
"ON" position, the emergency
stop to "RUN" and lift the
side stand. Fan off.
CENTRAL UNIT
117 12/04
STANDARD
Battery
voltage
yellow
B
Engine
temperature
sensor
Fan