engine YAMAHA TTR90 2006 Repair Manual

5 - 1
CHAS
EC500000
CHASSIS
FRONT WHEEL AND REAR WHEEL
FRONT WHEEL AND FRONT BRAKE
Extent of removal:
1 Front wheel removal
2 Wheel bearing removal
3 Brake shoe plate assembly removal and disassembly
Extent of removal Order Part name Q’ty Remarks
FRONT WHEEL REMOVAL
WARNING
Support the machine securely so
there is no danger of it falling over. Preparation for removal Hold the machine by placing the
suitable stand under the engine.
1 Bolt (brake cable holder) 1 Only loosening.
2 Brake cable 1 Disconnect at the lever side.
3 Wheel axle nut 1
4 Front wheel axle 1
5 Front wheel 1
6 Collar set 1
7 Brake shoe plate assembly 1
8 Oil seal 1
9 Bearing 2 Refer to “REMOVAL POINTS”.
2
13
3
FRONT WHEEL AND REAR WHEEL

5 - 3
CHASFRONT WHEEL AND REAR WHEEL
REAR WHEEL AND REAR BRAKE
Extent of removal:
1 Rear wheel removal
2 Wheel bearing removal
3 Brake shoe plate assembly removal and disassembly
Extent of removal Order Part name Q’ty Remarks
REAR WHEEL REMOVAL
WARNING
Support the machine securely so
there is no danger of it falling over. Preparation for removal Hold the machine by placing the
suitable stand under the engine.
1 Brake rod 1
2Cotter pin 1
3 Nut (tension bar) 1
4 Bolt (tension bar) 1
5 Wheel axle nut 1
6 Rear wheel axle 1
7 Drive chain puller 2
8 Rear wheel 1
9 Collar (right) 1
10 Brake shoe plate assembly 1
2
1
3

5 - 10
CHASFRONT FORK
EC550000
FRONT FORK
Extent of removal:
1 Front fork removal
Extent of removal Order Part name Q’ty Remarks
FRONT FORK REMOVAL
WARNING
Support the machine securely so
there is no danger of it falling over. Preparation for removal Hold the machine by placing the
suitable stand under the engine.
Front wheel Refer to “FRONT WHEEL AND REAR
WHEEL” section.
Handlebar Refer to “HANDLEBAR” section.
Front fender
1 Brake cable holder 1
2 Cap bolt 1
3 Adjuster 1 Only loosening.
4 Pinch bolt (under bracket) 1 Only loosening.
5 Front fork 1
1

5 - 13
CHASHANDLEBAR
EC5B0000
HANDLEBAR
TT-R90
Extent of removal:
1 Handlebar removal
Extent of removal Order Part name Q’ty Remarks
HANDLEBAR REMOVAL
1“ENGINE STOP” switch 1
2 Brake lever cable 1 Disconnect at the lever side.
3Brake lever 1
4 Grip cap (lower) 1
5 Grip cap (upper) 1
6 Throttle cable 1 Disconnect at the throttle side.
7 Grip (right) 1 Refer to “REMOVAL POINTS”.
8 Tube guide 1
9 Grip (left) 1 Refer to “REMOVAL POINTS”.
10 Handlebar holder (upper) 2
11 Handlebar 1
12 Handlebar holder (lower) 2
1

5 - 13
CHAS
GUIDON
TT-R90
Organisation de la dépose:1 Dépose du guidon
Organisation de la dépose Ordre Nom de la pièce Q’téRemarques
DEPOSE DU GUIDON
1 Coupe-circuit du moteur 1
2Câble du levier de frein 1 Déconnecter du côté levier.
3 Levier de frein 1
4 Calotte de poignée (inférieure) 1
5 Calotte de poignée (supérieure) 1
6Câble des gaz 1 Déconnecter du côté accélérateur.
7 Poignée (droite) 1 Se reporter à la section “POINTS DE
DEPOSE”.
8 Tube de commande des gaz 1
9 Poignée (gauche) 1 Se reporter à la section “POINTS DE
DEPOSE”.
10 Support du guidon (supérieur) 2
11 Guidon 1
12 Support du guidon (inférieur) 2
1
LENKER
TT-R90
Arbeitsumfang:
1 Lenker demontieren
ArbeitsumfangReihen-
folgeBauteil Anz. Bemerkungen
LENKER DEMONTIEREN
1 Motorstoppschalter “ENGINE
STOP”1
2 Vorderrad-Handbremszug 1 Hebelseitig lösen.
3 Handbremshebel 1
4 Gasdrehgriff-Gehäuseteil (unten) 1
5 Gasdrehgriff-Gehäuseteil (oben) 1
6 Gaszug 1 Gasdrehgriffseitig lösen.
7 Lenkergriff rechts 1 Siehe dazu den Abschnitt “DEMON-
TAGE-EINZELHEITEN”.
8Führung 1
9 Lenkergriff links 1 Siehe dazu den Abschnitt “DEMON-
TAGE-EINZELHEITEN”.
10 Lenker-Halterung (oben) 2
11 Lenker 1
12 Lenker-Halterung (unten) 2
1
GUIDON
LENKER

5 - 14
CHASHANDLEBAR
TT-R90E
Extent of removal:
1 Handlebar removal
Extent of removal Order Part name Q’ty Remarks
HANDLEBAR REMOVAL
1 Main switch 1
2 Start switch 1
3“ENGINE STOP” switch 1
4 Brake lever cable 1 Disconnect at the lever side.
5Brake lever 1
6 Grip cap (lower) 1
7 Grip cap (upper) 1
8 Throttle cable 1 Disconnect at the throttle side.
9 Grip (right) 1 Refer to “REMOVAL POINTS”.
10 Tube guide 1
11 Grip (left) 1 Refer to “REMOVAL POINTS”.
12 Handlebar holder (upper) 2
13 Handlebar 1
14 Handlebar holder (lower) 2
1

5 - 14
CHAS
TT-R90E
Organisation de la dépose:1 Dépose du guidon
Organisation de la dépose Ordre Nom de la pièce Q’téRemarques
DEPOSE DU GUIDON
1 Contacteur à clé1
2 Contacteur du démarreur 1
3 Coupe-circuit du moteur 1
4Câble du levier de frein 1 Déconnecter du côté levier.
5 Levier de frein 1
6 Calotte de poignée (inférieure) 1
7 Calotte de poignée (supérieure) 1
8Câble des gaz 1 Déconnecter du côté accélérateur.
9 Poignée (droite) 1 Se reporter à la section “POINTS DE
DEPOSE”.
10 Tube de commande des gaz 1
11 Poignée (gauche) 1 Se reporter à la section “POINTS DE
DEPOSE”.
12 Support du guidon (supérieur) 2
13 Guidon 1
14 Support du guidon (inférieur) 2
1
TT-R90E
Arbeitsumfang:
1 Lenker demontieren
ArbeitsumfangReihen-
folgeBauteil Anz. Bemerkungen
LENKER DEMONTIEREN
1Zündschloss 1
2 Starterschalter 1
3 Motorstoppschalter “ENGINE
STOP”1
4 Vorderrad-Handbremszug 1 Hebelseitig lösen.
5 Handbremshebel 1
6 Gasdrehgriff-Gehäuseteil (unten) 1
7 Gasdrehgriff-Gehäuseteil (oben) 1
8 Gaszug 1 Gasdrehgriffseitig lösen.
9 Lenkergriff rechts 1 Siehe dazu den Abschnitt “DEMON-
TAGE-EINZELHEITEN”.
10 Führung 1
11 Lenkergriff links 1 Siehe dazu den Abschnitt “DEMON-
TAGE-EINZELHEITEN”.
12 Lenker-Halterung (oben) 2
13 Lenker 1
14 Lenker-Halterung (unten) 2
1
GUIDON
LENKER

5 - 17
CHASHANDLEBAR
5. Install:
Brake lever holder 1
Brake cable 2
NOTE:
Apply the lithium soap base grease on the
front brake cable end.
The brake lever holder should be installed
according to the dimensions as shown.
ÈTT-R90
ÉTT-R90E
1 2
LS
5mm
(0.2 in)
È
LS
Zero mm
(Zero in)1 2
É
6. Install:
Engine stop switch 1
NOTE:
Align the tab a on the engine stop switch
holder with the hole b in the handlebar.
a b
1

5 - 18
CHASSTEERING
EC560000
STEERING
LS
LS
T R..TIGHTENING STEPS:
Tighten ring nut.
38 Nm (3.8 m  kg, 27 ft  Ib)
Loosen it completely.
Retighten it.
1 Nm (0.1 m  kg, 0.7 ft  Ib)
T R..40 Nm (4.0 m  kg, 29 ft  Ib)
5 9681076 43
21
Extent of removal:
1 Under bracket removal
2 Bearing removal
Extent of removal Order Part name Q’ty Remarks
STEERING REMOVAL
WARNING
Support the machine securely so
there is no danger of it falling over. Preparation for removal Hold the machine by placing the
suitable stand under the engine.
Front fork Refer to “FRONT FORK” section.
1 Steering stem bolt 1
2 Handle crown 1
3 Ring nut 1 Use special tool.
Refer to “STEERING HEAD INSPEC-
TION AND ADJUSTMENT” section in
the CHAPTER 3.
4 Ball race cover 1
5 Under bracket 1
6 Bearing inner race 2
7 Upper bearing ball 19
8 Lower bearing ball 16
9 Dust seal 1
10 Bearing outer race 2
2
1

5 - 20
CHASSWINGARM
EC570000
SWINGARM
Extent of removal:
1 Swingarm removal
2 Rear shock absorber removal
Extent of removal Order Part name Q’ty Remarks
SWINGARM REMOVAL
WARNING
Support the machine securely so
there is no danger of it falling over. Preparation for removal Hold the machine by placing the
suitable stand under the engine.
Rear wheel Refer to “FRONT WHEEL AND REAR
WHEEL” section.
Rear fender
Drive chain
1Cotter pin 2
2Pin 2
3 Rear shock absorber 1
4 Pivot shaft 1 Hold the swingarm.
5 Swing arm 1
6 Drive chain guide 1
7 Drive chain guard 1
8 Drive chain support 1
2
1