oil YAMAHA TTR90 2004 User Guide

SPEC

2 - 7 Piston:
Piston to cylinder clearance 0.025 ~ 0.045 mm
(0.0010 ~ 0.0018 in)0.15 mm
(0.0059 in)
Piston size “D”46.960 ~ 46.975 mm
(1.8488 ~ 1.8494 in)----
Piston over size (2nd) 47.5 mm (1.8701 in) ----
(4th) 48.0 mm (1.8898 in) ----
Measuring point “H”4 mm (0.16 in) ----
Piston off-set 0.75 mm (0.0295 in) ----
Piston pin bore inside diameter 13.002 ~ 13.013 mm
(0.5119 ~ 0.5123 in)13.045 mm
(0.5136 in)
Piston pin outside diameter 12.996 ~ 13.000 mm
(0.5117 ~ 0.5118 in)12.980 mm
(0.511 in)
Piston rings:
Top ring
Type Barrel ----
Dimensions (B

×

T) 1.0
×
2.0 mm (0.04
×
0.08 in) ----
End gap (installed) 0.10 ~ 0.25 mm
(0.004 ~ 0.010 in)0.4 mm
(0.016 in)
Side clearance (installed) 0.030 ~ 0.065 mm
(0.0012 ~ 0.0026 in)0.12 mm
(0.005 in)
2nd ring
Type Taper ----
Dimensions (B

×

T) 1.0
×
2.0 mm (0.04
×
0.08 in) ----
End gap (installed) 0.10 ~ 0.25 mm
(0.004 ~ 0.010 in)0.4 mm
(0.016 in)
Side clearance 0.020 ~ 0.055 mm
(0.0008 ~ 0.0022 in)0.12 mm
(0.005 in)
Oil ring
Dimensions (B

×

T) 2.0
×
2.3 mm (0.08
×
0.09 in) ----
End gap (installed) 0.2 ~ 0.7 mm (0.01 ~ 0.03 in) ----Item Standard Limit
H
D
T
B
B
T
B
T

MAINTENANCE SPECIFICATIONS

SPEC

2 - 9 Lubrication system:
Oil filter type Wire mesh type ----
Oil pump type Trochoid type ----
Tip clearance “A” or “B”0.15 mm
(0.0059 in)0.2 mm
(0.0079 in)
Side clearance 0.13 ~ 0.18 mm
(0.0051 ~ 0.0071 in)0.23 mm
(0.0091 in)
Housing and rotor clearance 0.06 ~ 0.10 mm
(0.0024 ~ 0.0039 in)0.15 mm
(0.0059 in) Item Standard Limit
MAINTENANCE SPECIFICATIONS

SPEC

2 - 10 Part to be tightened Thread size Q’tyTightening torque
Nm m•kg ft•lb
Cylinder head nut M8
×
1.25 4 22 2.2 16
Cylinder head bolt M6
×
1.0 2 10 1.0 7.2
Spark plug M10
×
1.0 1 13 1.3 9.4
Camshaft sprocket cover bolt M6
×
1.0 2 7 0.7 5.1
Tappet cover M45
×
1.5 2 18 1.8 13
Exhaust pipe stud bolt M6
×
1.0 2 7 0.7 5.1
Rotor nut M12
×
1.25 1 48 4.8 35
Timing chain guide (rear) M6
×
1.0 2 10 1.0 7.2
Valve clearance adjust screw locknut M5
×
0.5 2 7 0.7 5.1
Camshaft sprocket M8
×
1.25 1 20 2.0 14
Camshaft bearing retainer M6
×
1.0 1 10 1.0 7.2
Timing chain tensioner cap bolt M8
×
1.25 1 8 0.8 5.8
Timing chain tensioner M6
×
1.0 2 10 1.0 7.2
Oil pump M6
×
1.0 2 7 0.7 5.1
Drain bolt M12
×
1.5 1 20 2.0 14
Carburetor joint (cylinder head side) M6
×
1.0 2 7 0.7 5.1
Carburetor joint (carburetor side) M6
×
1.0 2 7 0.7 5.1
Air filter case M6
×
1.0 2 7 0.7 5.1
Exhaust pipe M6
×
1.0 2 7 0.7 5.1
Exhaust pipe protector M6
×
1.0 7 7 0.7 5.1
Silencer M8
×
1.25 1 24 2.4 17
Silencer protector M5
×
0.8 2 4 0.4 2.9
Crankcase M6
×
1.0 9 10 1.0 7.2
Crankcase cover (left) (TT-R90) M6
×
1.0 8 7 0.7 5.1
(TT-R90E) M6
×
1.0 8 10 1.0 7.2
Drive sprocket cover M6
×
1.0 2 7 0.7 5.1
Crankcase cover (right) (TT-R90) M6
×
1.0 9 7 0.7 5.1
(TT-R90E) M6
×
1.0 9 10 1.0 7.2
Timing plug M14
×
1.5 1 7 0.7 5.1
Crankshaft end cover M32
×
1.5 1 7 0.7 5.1
Cylinder head stud bolt M8
×
1.25 4 13 1.3 9.4
Kick crank M6
×
1.0 1 10 1.0 7.2
Starter clutch and rotor (TT-R90E) M6
×
1.0 3 14 1.4 10
Primary drive gear M12
×
1.0 1 50 5.0 36
Pressure plate M5
×
0.8 4 6 0.6 4.3
Clutch boss M14
×
1.0 1 70 7.0 50
Main axle bearing retainer M6
×
1.0 1 10 1.0 7.2
Shift pedal M6
×
1.0 1 8 0.8 5.8
Clutch adjust screw locknut M6
×
1.0 1 8 0.8 5.8
Pickup coil M6
×
1.0 2 10 1.0 7.2
Stator assembly M6
×
1.0 3 10 1.0 7.2
Neutral switch (TT-R90E) M10
×
1.25 1 18 1.8 13
MAINTENANCE SPECIFICATIONS

SPEC

2 - 11
CHASSIS
Item Standard Limit
Steering system:
Steering bearing type Angular bearing ----
Front suspension:
Front fork travel 110 mm (4.33 in) ----
Fork spring free length 425.1 mm (16.74 in) 417 mm (16.4 in)
Fork spring fitting length 415.1 mm (16.34 in) ----
Spring rate, STD K = 3.4 N/mm
(0.35 kg/mm, 19.41 lb/in)----
Optional spring/spacer No ----
Oil capacity 64 cm
3

(2.26 Imp oz, 2.16 US oz) ----
Oil level 185 mm (7.28 in) ----
Oil grade Fork oil 15W or equivalent ----
Rear suspension:
Shock absorber travel 48 mm (1.89 in) ----
Spring free length 169 mm (6.65 in) ----
Fitting length 165 mm (6.5 in) ----
Spring rate, STD K = 45.6 N/mm
(4.65 kg/mm, 260 lb/in)----
Optional spring No ----
Enclosed gas pressure 2,000 kPa
(20 kg/cm
2

, 290 psi)----
Swingarm:
Swingarm free play limit
End ---- 1.0 mm (0.04 in)
Side clearance ---- 0.3 mm (0.01 in)
Wheel:
Front wheel type Spoke wheel ----
Rear wheel type Spoke wheel ----
Front rim size/material 14
×
1.40/steel ----
Rear rim size/material 12
×
1.60/steel ----
Rim runout limit:
Radial ---- 2.0 mm (0.08 in)
Lateral ---- 2.0 mm (0.08 in)
Drive chain:
Type/manufacturer DID420(I)/DAIDO ----
Number of links 86 links ----
Chain slack 40 ~ 53 mm (1.6 ~ 2.1 in) ----
Chain length (10 links) ---- 121.9 mm
(4.80 in)
MAINTENANCE SPECIFICATIONS

SPEC
2 - 14
EC212300
ELECTRICAL
TT-R90
Item Standard Limit
CDI:
Magneto-model/manufacturer F5HN 00/YAMAHA ----
Source coil resistance (color) 688 ~ 1,032 Ω at 20 ˚C (68 ˚F)
(Brown – Green)----
Pickup coil resistance (color) 248 ~ 372 Ω at 20 ˚C (68 ˚F)
(Red – White)----
CDI unit-model/manufacturer 4GL-20/YAMAHA ----
Ignition coil:
Model/manufacturer 2JN-00/YAMAHA ----
Minimum spark gap 6 mm (0.24 in) ----
Primary winding resistance 0.18 ~ 0.28 Ω at 20 ˚C (68 ˚F) ----
Secondary winding resistance 6.3 ~ 9.5 kΩ at 20 ˚C (68 ˚F) ----
Spark plug cap:
Type Resin ----
Resistance 10 kΩ at 20 ˚C (68 ˚F) ----
MAINTENANCE SPECIFICATIONS

SPEC
2 - 15 TT-R90E
Item Standard Limit
CDI:
Magneto-model/manufacturer F5HN/YAMAHA ----
Source coil resistance (color) 688 ~ 1,032 Ω at 20 ˚C (68 ˚F)
(Brown – Green)----
Pickup coil resistance (color) 248 ~ 372 Ω at 20 ˚C (68 ˚F)
(Red – White)----
CDI unit-model/manufacturer 5HN/YAMAHA ----
Ignition coil:
Model/manufacturer 2JN-00/YAMAHA ----
Minimum spark gap 6 mm (0.24 in) ----
Primary winding resistance 0.18 ~ 0.28 Ω at 20 ˚C (68 ˚F) ----
Secondary winding resistance 6.3 ~ 9.5 kΩ at 20 ˚C (68 ˚F) ----
Spark plug cap:
Type Resin ----
Resistance 10 kΩ at 20 ˚C (68 ˚F) ----
Charging system:
System type CDI magneto ----
Model/manufacturer F5HN/YAMAHA ----
Normal output 14 V/100 W at 5,000 r/min ----
Lighting coil 1 resistance (color) 0.64 ~ 0.96 Ω at 20 ˚C (68 ˚F)
(White – Black)----
Lighting coil 2 resistance (color) 0.52 ~ 0.78 Ω at 20 ˚C (68 ˚F)
(Yellow – Black)----
Rectifier/regulator:
Regulator type Semiconductor short circuit ----
Model/manufacturer SH620B-12/SHINDENGEN ----
No-load regulated voltage 14.0 ~ 15.0 V ----
Rectifier capacity 8 A ----
Electric starting system:
Type Constant mesh
Starter motor:
Model/manufacturer 5HN/YAMAHA ----
Operation voltage 12 V ----
Output 0.35 kW ----
Armature coil resistance 0.018 ~ 0.022 Ω at 20 ˚C (68 ˚F) ----
Brush overall length 7 mm (0.28 in) 3.5 mm
(0.14 in)
Brush quantity 2 pcs. ----
Spring force 3.92 ~ 5.88 N
(400 ~ 600 g, 14.1 ~ 21.2 oz)3.92 N
(400g,
14.1 oz)
Commutator diameter 17.6 mm (0.69 in) 16.6 mm
(0.65 in)
Mica undercut (depth) 1.35 mm (0.05 in) ----
MAINTENANCE SPECIFICATIONS

SPEC
2 - 16 Starter relay:
Model/manufacturer MS5F-751/JIDECO ----
Amperage rating 180 A ----
Coil winding resistance 4.2 ~ 4.6 Ω at 20 ˚C (68 ˚F) ----
Starting circuit cut-off relay:
Model/manufacturer ACM33221/MATSUSHITA ----
Coil winding resistance 75.69 ~ 92.51 Ω at 20 ˚C (68 ˚F) ----
Fuse (amperage × quantity):
Main fuse 10 A × 1 ----
Reserve fuse 10 A × 1 ---- Item Standard Limit
MAINTENANCE SPECIFICATIONS

2 - 4
CARACTERISTIQUES D’ENTRETIEN
SPEC

CARACTERISTIQUES D’ENTRETIEN
MOTEUR
Désignation Standard Limite
Culasse:
Limite de déformation ---- 0,03 mm
(0,0012 in)
Cylindre:
Alésage 47,000 à 47,005 mm
(1,8504 à 1,8506 in)47,05 mm
(1,8524 in)
Limite d’ovalisation ---- 0,05 mm
(0,0020 in)
Arbre à cames:
Méthode d’entraînement Transmission par chaîne
(côté gauche)----
Dimensions de came
Admission“A” 25,428 à 25,528 mm
(1,0011 à 1,0050 in)25,400 mm
(1,0000 in)
“B” 21,034 à 21,134 mm
(0,8281 à 0,8320 in)21,000 mm
(0,8268 in)
Echappement“A” 25,286 à 25,386 mm
(0,9955 à 0,9994 in)25,260 mm
(0,9945 in)
“B” 21,047 à 21,147 mm
(0,8286 à 0,8326 in)21,017 mm
(0,8274 in)
Limite de voile d’arbre à cames ---- 0,03 mm
(0,0012 in)

2 - 11
CARACTERISTIQUES D’ENTRETIEN
SPEC

PARTIE-CYCLE
Désignation Standard Limite
Système de direction:
Type de roulement de direction Roulement à contact oblique ----
Suspension avant:
Débattement de fourche avant 110 mm (4,33 in) ----
Longueur libre de ressort de fourche 425,1 mm (16,74 in) 417 mm (16,4 in)
Longueur de ressort de fourche installé415,1 mm (16,34 in) ----
Constante standard de ressort K = 3,4 N/mm
(0,35 kg/mm, 19,41 lb/in)----
Ressort/entretoise en option Non ----
Capacité d’huile 64 cm
3

(2,26 Imp oz, 2,16 US oz) ----
Niveau d’huile 185 mm (7,28 in) ----
Grade d’huile Huile de fourche 15W ou huile équiva-
lente----
Suspension arrière:
Débattement d’amortisseur 48 mm (1,89 in) ----
Longueur libre de ressort 169 mm (6,65 in) ----
Longueur monté165 mm (6,5 in) ----
Constante standard de ressort K = 45,6 N/mm
(4,65 kg/mm, 260 lb/in)----
Ressort optionnel Non ----
Pression du gaz 2.000 kPa
(20 kg/cm
2

, 290 psi)----
Bras oscillant:
Limite de jeu du bras oscillant
A l’extrémité---- 1,0 mm (0,04 in)
Latéral ---- 0,3 mm (0,01 in)
Roue:
Type de roue avant Roue à rayons ----
Type de roue arrière Roue à rayons ----
Taille/matériau de jante avant 14
×
1,40/acier ----
Taille/matériau de jante arrière 12
×
1,60/acier ----
Limite de voile de jante:
Radial ---- 2,0 mm (0,08 in)
Latéral ---- 2,0 mm (0,08 in)
Chaîne de transmission:
Type/fabricant DID420(I)/DAIDO ----
Nombre de maillons 86 maillons ----
Flèche de la chaîne 40 à 53 mm (1,6 à 2,1 in) ----
Longueur de chaîne (10 maillons) ---- 121,9 mm (4,80 in)

2 - 18
SPEC

CABLE ROUTING DIAGRAM
TT-R90
1
Crankcase breather hose
2
Wire harness
3
CDI magneto lead
4
Starter cable
5
Carburetor heating lead
6
Engine stop switch lead
7
Thermo switch
8
Thermo switch lead
9
Spark plug lead
0
Throttle cable
A
Cable holder
B
Fuel tank breather hose
C
Brake cable
Å
After fastening the starter cable, CDI magneto lead, wire harness and
thermo switch lead, cut off any excess from the plastic locking tie end.
ı
Pass the ignition coil lead through the lead guide.
Ç
Fasten the engine stop switch lead with the plastic bands.
Î
Pass the brake cable through the cable guides.
12345
9
0
B A
6
C 1Å
ı
Ç
Î
Î
A
A
67
8
20 ~ 30 mm
(0.79 ~ 1.18 in)

CABLE ROUTING DIAGRAM