2005 YAMAHA YZ450F stop start

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SPEC
1Gaszug
2Kraftstofftank-Belüftungsschlauch
3Klemme
4Kupplungszug
5Warmstartzug
6Kabel des Motorstoppschalters “ENGINE STOP”
7Bremsschlauch
8Schlauchführung
ÈDas Kabel des Motorstoppschalters “ENGINE
STOP” mit einem Kunststoffbinder am Lenker
befestigen.
ÉDen Bremsschlauch an der Vorderseite des
Nummernschildes entlangführen.
DIAGRAMME D’ACHEMINEMENT DES CABLES
KABELFÜHRUNGSDIAGRAMME
1Câble des gaz
2Durit de mise à l’air du réservoir de carburant
3Collier à pince
4Câble d’embrayage
5Câble de démarrage à chaud
6Fil du bouton “ENGINE STOP”
7Durit de frein
8Guide de durit
ÈFixer le fil du bouton “ENGINE STOP” au guidon à
l’aide du collier réutilisable.
ÉAcheminer la durit de frein devant la plaque d’identi-
fication.

3 - 15
INSP
ADJ
ENGINE OIL REPLACEMENT
5. Start the engine and let it warm up for sev-
eral minutes.
CAUTION:
When the oil tank is empty, never start the
engine.
6. Idle the engine more than 10 seconds
while keeping the machine upright. Then
stop the engine and add the oil to the maxi-
mum level.
7. Install:
Oil tank cap
ENGINE OIL REPLACEMENT
1. Start the engine and let it warm up for sev-
eral minutes.
2. Stop the engine and place an oil pan under
the drain bolt.
3. Remove:
Oil tank plug 1
Oil filler cap 2
Drain bolt (with gasket) 3
Oil filter drain bolt (O-ring) 4
Drain bolt (with gasket) 5
Drain bolt (with gasket) 6
Drain the crankcase and oil tank (frame)
of its oil.
4. Remove:
Engine skid plate
Engine oil hose clamp 1
Bolt (engine oil hose) 2
Engine oil hose 3
Oil strainer (frame) 4
5. Clean:
Oil strainer (frame)

3 - 18
INSP
ADJIDLE SPEED ADJUSTMENT/
VALVE CLEARANCE ADJUSTMENT
EC35M021
IDLE SPEED ADJUSTMENT
1. Start the engine and thoroughly warm it up.
2. Adjust:
Idle speed
VALVE CLEARANCE ADJUSTMENT
NOTE:
The valve clearance should be adjusted
when the engine is cool to the touch.
The piston must be at Top Dead Center
(T.D.C.) on compression stroke to check or
adjust the valve clearance.
1. Remove:
Seat
Fuel tank
Refer to “SEAT, FUEL TANK AND SIDE
COVERS” section in the CHAPTER 4.
2. Remove:
Carburetor
Refer to “CARBURETOR” section in the
CHAPTER 4.
Spark plug
Engine stay (upper)
Cylinder head cover
Refer to “CAMSHAFTS” section in the
CHAPTER 4. Adjustment steps:
Adjust the pilot screw.
Refer to “PILOT SCREW ADJUSTMENT”
section.
Turn the throttle stop screw 1 until the
specified engine idling speed.
NOTE:
Using a digital engine tachometer for idle
speed adjustment, detect the engine idling
speed by bringing the sensing element c of
the engine tachometer close to the ignition
coil 2.
To increase idle speed
→
Turn the throttle stop screw
1 in
a.
To decrease idle speed
→
Turn the throttle stop screw
1 out
b.
Engine idling speed:
1,900 ~ 2,100 r/min
c2

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ENG
2. Kontrollieren:
Hauptdüse 1
Leerlaufdüse 2
Nadeldüse 3
Chokedüse 4
Leerlauf-Luftdüse 5
Ausströmdüse 6
Beschädigt → Erneuern.
Verunreinigt → Reinigen.
HINWEIS:
Zum Reinigen ein Lösungsmittel auf Petrole-
umbasis verwenden. Sämtliche Kanäle und
Düsen mit Druckluft ausblasen.
Niemals einen Draht verwenden.
Nadelventil
1. Kontrollieren:
Nadelventil 1
Ventilsitz 2
Riefig a → Erneuern.
Verstaubt b → Reinigen.
Filter c
Verstopft → Reinigen.
Drosselklappe
1. Kontrollieren:
Leichtgängigkeit
Fest → Instand setzen, ggf. erneuern.
Die Drosselklappe 1 in das Vergaserge-
häuse einsetzen und deren Leichtgängig-
keit kontrollieren.
Düsennadel
1. Kontrollieren:
Düsennadel 1
Verbogen/verschlissen → Erneuern.
Clip-Nut
Spiel vorhanden/verschlissen → Erneu-
ern.
Clipposition
Standard-Clipposition:
4. Nut
CARBURATEUR
VERGASER
2. Contrôler:
Gicleur principal 1
Gicleur de ralenti 2
Gicleur d’aiguille 3
Gicleur de starter 4
Gicleur d’air de ralenti 5
Gicleur de fuite 6
Endommagement → Remplacer.
Encrassé → Nettoyer.
N.B.:
Nettoyer avec un solvant à base de pétrole. Net-
toyer tous les conduits et gicleurs à l’air com-
primé.
Ne jamais utiliser de fil métallique.
Pointeau
1. Contrôler:
Pointeau 1
Siège de pointeau 2
Usure en creux a → Remplacer.
Poussière b → Nettoyer.
Filtre c
Bouché → Nettoyer.
Papillon des gaz
1. Contrôler:
Mouvement
Coincement → Réparer ou remplacer.
Insérer le papillon des gaz 1 dans le corps du
carburateur et contrôler qu’il coulisse libre-
ment.
Aiguille
1. Contrôler:
Aiguille 1
Déformation/usure → Remplacer.
Rainure du clip
Jeu/usure → Remplacer.
Position du clip
Position standard du clip:
Rainure n°4

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ENGCARBURETOR
8. Install:
Throttle shaft assembly 1
Plain washer (metal) 2
Plain washer (resin) 3
Valve lever 4
NOTE:
Apply the fluorochemical grease on the bear-
ings.
Fit the projection a on the throttle shaft
assembly into the slot b in the TPS (throttle
position sensor).
Make sure the stopper c of the spring fits
into the recess in the carburetor.
Turn the throttle shaft assembly left while
holding down the lever 1 5 and fit the throt-
tle stop screw tip d to the stopper e of the
throttle shaft assembly pulley.
1
23
4
b
a
c
e
d
5
9. Install:
Push rod 1
NOTE:
While holding down the lever 1 2, insert the
push rod farthest into the carburetor.12
10. Install:
Starter jet 1
Pilot jet 2
Spacer 3
Needle jet 4
Main jet 5

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CHAS
EC5B0000
HANDLEBAR
Extent of removal:
1 Handlebar removal
Extent of removal Order Part name Q’ty Remarks
HANDLEBAR REMOVAL
Preparation for removal Number plate Remove the clamp portion only.
1 Hot starter cable 1 Disconnect at the lever side.
2 Hot starter lever holder 1
3 Clutch cable 1 Disconnect at the lever side.
4 Clutch lever holder 1
5“ENGINE STOP” button 1
6 Master cylinder 1 Refer to “REMOVAL POINTS”.
7 Throttle cable cap 1
8 Throttle cable #2 (pushed) 1 Disconnect at the throttle side.
9 Throttle cable #1 (pulled) 1 Disconnect at the throttle side.
10 Grip (right) 1 Refer to “REMOVAL POINTS”.
11 Tube guide 1
12 Cover (grip cap) 1
13 Collar 1
14 Grip (left) 1 Refer to “REMOVAL POINTS”.
15 Handlebar holder (upper) 2
16 Handlebar 1
1
HANDLEBAR

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CHAS
GUIDON
Organisation de la dépose:1 Dépose du guidon
Organisation de la dépose Ordre Nom de la pièce QtéRemarques
DEPOSE DU GUIDON
Préparation à la dépose Plaque d’identification Déposer la partie serrée uniquement.
1Câble de démarrage à chaud 1 Déconnecter du côté levier.
2 Support du levier de démarrage à
chaud1
3Câble d’embrayage 1 Déconnecter du côté levier.
4 Support de levier d’embrayage 1
5 Bouton “COUPE-CIRCUIT DU
MOTEUR”1
6Maître-cylindre 1 Se reporter à “POINTS DE DEPOSE”.
7 Couvercle du logement de câble des
gaz1
8Câble des gaz n°2 (enfoncé)1Déconnecter du côté accélérateur.
9Câble des gaz n°1 (tiré)1Déconnecter du côté accélérateur.
10 Poignée (droite) 1 Se reporter à “POINTS DE DEPOSE”.
11 Guide de tube 1
12 Cache (capuchon de la poignée) 1
13 Entretoise épaulée1
14 Poignée (gauche) 1 Se reporter à “POINTS DE DEPOSE”.
15 Support du guidon (supérieur) 2
16 Guidon 1
1
LENKER
Arbeitsumfang:
1 Lenker demontieren
ArbeitsumfangReihen-
folgeBauteil Anz. Bemerkungen
LENKER DEMONTIEREN
Vorbereitungsarbeiten Nummernschild Lediglich die Klemme demontieren.
1 Warmstartzug 1 Hebelseitig lösen.
2 Warmstarthebel-Halterung 1
3 Kupplungszug 1 Hebelseitig lösen.
4 Kupplungshebel-Halterung 1
5 Motorstoppschalter “ENGINE
STOP”1
6 Hauptbremszylinder 1 Siehe unter “DEMONTAGE-EINZELHEI-
TEN”.
7 Gaszug-Abdeckung 1
8 Gasnehmerzug 2 1 Gasdrehgriffseitig lösen.
9 Gasgeberzug 1 1 Gasdrehgriffseitig lösen.
10 Lenkergriff rechts 1 Siehe unter “DEMONTAGE-EINZELHEI-
TEN”.
11 Führung 1
12 Gaszuggehäuse-Abdeckung 1
13 Distanzhülse 1
14 Lenkergriff links 1 Siehe unter “DEMONTAGE-EINZELHEI-
TEN”.
15 Lenker-Halterung (oben) 2
16 Lenker 1
1
GUIDON
LENKER

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CHASHANDLEBAR
9. Install:
“ENGINE STOP” button 1
Clutch lever holder 2
Bolt (clutch lever holder) 3
Hot starter lever holder 4
Bolt (hot starter lever holder) 5
Clamp 6
NOTE:
The “ENGINE STOP” button, clutch lever
holder and clamp should be installed accord-
ing to the dimensions shown.
Pass the “ENGINE STOP” button lead in the
middle of the clutch lever holder.
T R..4 Nm (0.4 m · kg, 2.9 ft · lb)
T R..4 Nm (0.4 m · kg, 2.9 ft · lb)
10. Install:
Clutch cable 1
Hot starter cable 2
NOTE:
Apply the lithium soap base grease on the
clutch cable end and hot starter cable end.
11. Adjust:
Clutch lever free play
Refer to “CLUTCH ADJUSTMENT” sec-
tion in the CHAPTER 3.
Hot starter lever free play
Refer to “HOT STARTER LEVER
ADJUSTMENT” section in the CHAPTER
3.
12. Clamp the clamp portion a of the number
plate to the handlebar.
13. Insert the end of the fuel breather hose 1
into the hole in the steering shaft cap 2.
2 1a