2004 YAMAHA YZ450F stop start

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Page 572 of 642

YAMAHA YZ450F 2004  Owners Manual 6 - 4
–+ELECIGNITION SYSTEM
SPARK GAP TEST
1. Disconnect the ignition coil from spark
plug.
2. Remove the ignition coil cap.
3. Connect the dynamic spark tester 1
(ignition checker 2) as shown.
Ign

Page 573 of 642

YAMAHA YZ450F 2004  Owners Manual –+ELEC
SYSTEME D’ALLUMAGE
ZÜNDANLAGE
ZÜNDFUNKENSTRECKE KONTROLLIEREN
1. Die Zündspule von der Zündkerze ab-
trennen.
2. Die Zündspule ausbauen.
3. Den Zündfunkenstreckentester 1 (bzw. 
2) wi

Page 588 of 642

YAMAHA YZ450F 2004  Owners Manual 6 - 11
–+ELECTPS (THROTTLE POSITION SENSOR) SYSTEM
8. Tighten:
Screw (TPS) 1 
9. Stop the engine.
1
EC694000
TPS INPUT VOLTAGE INSPECTION
1. Disconnect the TPS coupler.
2. Start the engine.
3. Insp

Page 589 of 642

YAMAHA YZ450F 2004  Owners Manual –+ELEC
8. Festziehen:
Schraube (TPS) 1
9. Den Motor stoppen.
PRÜFEN DER TPS-EINGANGSSPANNUNG
1. Die TPS-Steckverbindung trennen.
2. Den Motor starten.
3. Prüfen:
TPS-Eingangsspannung
Außerhalb

Page 592 of 642

YAMAHA YZ450F 2004  Owners Manual 7 - 2
TUN
CAUTION:
The carburetor is extremely sensitive to
foreign matter (dirt, sand, water, etc.).
During installation, do not allow foreign
matter to get into the carburetor.
Always handle the c
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