2006 YAMAHA TTR50 Owners Manual

SPEC
2 - 10
Part to be tightened Thread size Q
’ty Tightening torque
Remarks
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 10 1.0 7.2
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 stopper M6 × 1.0 2 10 1.0 7.2
LT
Valve clearance adjust screw locknut M5 × 0.5 2 7 0.7 5.1
Camshaft sprocket M8 × 1.25 1 26 2.6 19
Camshaft bearing retainer M6 × 1.0 1 10 1.0 7.2
LT
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 assembly M6 × 1.0 2 7 0.7 5.1
LT
Engine oil drain bolt M12 × 1.5 1 20 2.0 14
Intake manifold (cylinder head side) M6 × 1.0 2 7 0.7 5.1
Intake manifold (carburetor side) M6 × 1.0 2 7 0.7 5.1
Carburetor heater M8 × 1.25 1 3 0.3 2.2
Clamp (air filter joint) M4 × 0.7 1 2 0.2 1.4
Exhaust pipe M6 × 1.0 2 7 0.7 5.1
Muffler M8 × 1.25 1 38 3.8 27
Muffler cover M6 × 1.0 4 7 0.7 5.1
Spark arrester M6 × 1.0 3 10 1.0 7.2
Crankcase M6 × 1.0 10 10 1.0 7.2
Crankcase cover (left) M6 × 1.0 8 10 1.0 7.2
Drive sprocket cover M6 × 1.0 2 7 0.7 5.1
Timing plug M14 × 1.5 1 7 0.7 5.1
Crankshaft end cover M32 × 1.5 1 7 0.7 5.1
Crankcase cover (right) M6 × 1.0 9 10 1.0 7.2
Clutch adjuster locknut M8 × 1.25 1 6 0.6 4.3
Cylinder head stud bolt M8 × 1.25 4 13 1.3 9.4
Starter clutch and rotor M6 × 1.0 3 14 1.4 10 Stake
Clutch housing nut M14 × 1.0 1 70 7.0 50
Pressure plate M5 × 0.8 3 5 0.5 3.6
Primary driven gear M14 × 1.0 1 70 7.0 50
Stopper bolt M8 × 1.25 1 23 2.3 17
LT
Shift pedal M6 × 1.0 1 10 1.0 7.2
Pickup coil M6 × 1.0 2 10 1.0 7.2
LT
Stator assembly M6 × 1.0 3 10 1.0 7.2LT
Neutral switch 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 96 mm (3.78 in) ----
Spring rate K1 7.95 N/mm (0.81 kgf/mm, 45.39 lb/in)----
K2 10.50 N/mm (1.07 kgf/mm, 59.96 lb/in) ----
Optional spring/spacer No ----
Inner tube outer diameter 21.7 mm (0.85 in) ----
Rear suspension: Shock absorber travel 47 mm (1.85 in) ----
Spring free length 114 mm (4.49 in) ----
Fitting length 110 mm (4.33 in) ----
Spring rate, STD K = 29.0 N/mm (2.96 kg/mm, 166 lb/in)----
Optional spring No ----
Swingarm: Swingarm free play limit End ---- 1.0 mm (0.0394 in)
Side clearance ---- 0.3 mm (0.0118 in)
Wheel: Front wheel type Spoke wheel ----
Rear wheel type Spoke wheel ----
Front rim size/material 10 × 1.40/steel ----
Rear rim size/material 10 × 1.40/steel ----
Rim runout limit: Radial ---- 2.0 mm (0.08 in)
Lateral ---- 2.0 mm (0.08 in)
Drive chain: Type/manufacturer 420/KMC ----
Number of links 79 links + joint ----
Chain slack 35 ~ 45 mm (1.38 ~ 1.77 in) ----
Chain length (15 links) ---- 194.3 mm (7.65 in)
MAINTENANCE SPECIFICATIONS

SPEC
2 - 12
Drum brake:
Front drum brake type Leading, trailing ----
Rear drum brake type Leading, trailing ----
Front drum inside diameter 80 mm (3.15 in) 80.5 mm (3.17 in)
Rear drum inside diameter 80 mm (3.15 in) 80.5 mm (3.17 in)
Front lining thickness 3.5 mm (0.14 in) 1.5 mm (0.06 in)
Rear lining thickness 3.5 mm (0.14 in) 1.5 mm (0.06 in)
Brake lever and brake pedal: Brake lever free play (lever end) 10 ~ 20 mm (0.39 ~ 0.79 in) ----
Brake pedal free play 10 ~ 20 mm (0.39 ~ 0.79 in) ----
Throttle grip free play 3 ~ 5 mm (0.12 ~ 0.20 in) ---- Item Standard Limit
MAINTENANCE SPECIFICATIONS

SPEC
2 - 13
NOTE:
1.First, tighten the ring nut approximately 38 Nm (3.8 m · kg, 27 ft · lb) by using the lower ring nut
wrench and turn the steering right and left a few times; then loosen the lower ring nut completely.
2.Retighten the lower ring nut 4 Nm (0.4 m · kg, 2.9 ft · lb).
Part to be tightened Thread size Q
’ty Tightening torque
Nm m ·kg ft ·lb
Engine mounting: Engine and frame (front upper side) M8 × 1.25 1 30 3.0 22
Engine and frame (rear upper side) M8 × 1.25 1 30 3.0 22
Engine and frame (rear lower side) M10 × 1.25 1 48 4.8 35
Engine bracket and frame M8 × 1.25 2 30 3.0 22
Front wheel axle and front wheel axle nut M12 × 1.25 1 35 3.5 25
Front brake camshaft lever and front brake
camshaft M6
× 1.0 1 7 0.7 5.1
Front brake cable locknut M8 × 1.25 1 16 1.6 11
Front wheel nipple (spoke) —28 2 0.2 1.4
Rear wheel nipple (spoke) —28 2 0.2 1.4
Rear wheel axle and rear wheel axle nut M12 × 1.25 1 60 6.0 43
Rear brake camshaft lever and rear brake
camshaft M6
× 1.0 1 7 0.7 5.1
Rear wheel drive hub and rear wheel sprocket M8 × 1.25 4 25 2.5 18
Drive chain puller locknut M6 × 1.0 2 7 0.7 5.1
Upper bracket and handlebar M10 × 1.25 2 32 3.2 23
Steering stem nut M22 × 1.0 1 110 11.0 80
Lower ring nut M25 1 Refer to NOTE.
Upper bracket and lower bracket M10 × 1.25 2 32 3.2 23
Inner tube assembly and front fork guard M6 × 1.0 4 7 0.7 5.1
Pivot shaft and nut M10 × 1.25 1 35 3.5 25
Rear shock absorber and frame M10 × 1.25 1 30 3.0 22
Rear shock absorber and swingarm M10 × 1.25 1 30 3.0 22
Drive chain guide and swingarm M6 × 1.0 2 7 0.7 5.1
Drive chain support and swingarm M6 × 1.0 3 7 0.7 5.1
Drive chain guard and swingarm M6 × 1.0 2 7 0.7 5.1
Upper bracket and front fender M6 × 1.0 2 7 0.7 5.1
Fuel tank and fuel cock M6 × 1.0 2 7 0.7 5.1
Fuel tank and frame M6 × 1.0 2 7 0.7 5.1
Air scoop and fuel tank M6 × 1.0 2 7 0.7 5.1
Seat assembly and frame M6 × 1.0 2 7 0.7 5.1
Seat and rear fender M6 × 1.0 3 7 0.7 5.1
Seat and side covers M6 × 1.0 4 7 0.7 5.1
Footrest, under cover and engine M8 × 1.25 4 30 3.0 22
Sidestand and sidestand bracket M10 × 1.25 1 40 4.0 29
MAINTENANCE SPECIFICATIONS

SPEC
2 - 14
EC212300
ELECTRICALItem Standard Limit
Ignition system: Advancer Digital ----
CDI: Magneto-model/manufacturer F1P6/MORIC ----
Pickup coil resistance (color) 248 ~ 372 Ω at 20 °C (68 °F)
(Red – White) ----
CDI unit model/manufacturer 1P6/SHY ----
Ignition coil: Model/manufacturer 4FP/SHY ----
Minimum spark gap 6 mm (0.24 in) ----
Primary winding resistance 0.32 ~ 0.48 Ω at 20 °C (68 °F) ----
Secondary winding resistance 5.68 ~ 8.52 k Ω at 20 °C (68 °F) ----
Spark plug cap: Type Resin ----
Resistance 10 k Ω at 20 °C (68 °F) ----
Charging system: System type AC magneto ----
Model/manufacturer F1P6/SHY ----
Normal output 14 V/80 W at 5,000 r/min ----
Charging coil resistance (color) 0.96 ~ 1.44 Ω at 20 °C (68 °F)
(White – Black) ----
Lighting coil resistance (color) 0.80 ~ 1.20 Ω at 20 °C (68 °F)
(Yellow – Black) ----
Rectifier/regulator: Regulator type Semiconductor short circuit ----
Model/manufacturer SH620B-12/SHINDENGEN ----
No-load regulated voltage (DC) 14.0 ~ 15.0 V ----
No-load regulated voltage (AC) 13.0 ~ 14.0 V ----
Rectifier capacity 8 A ----
Battery: Model YT4B-BS or GT4B-5 ----
Voltage capacity 12 V 2.3 Ah or 12 V 2.5 Ah ----
Electric starting system: Type Constant mesh ----
Starter motor: Model/manufacturer 1P6/SHY ----
Operation voltage 12 V ----
Output 0.25 kW ----
Armature coil resistance 0.035 ~ 0.043 Ω at 20 °C (68 °F) ----
Brush overall length 7 mm (0.28 in) 3.5 mm (0.14 in)
Brush quantity 2 pcs. ----
MAINTENANCE SPECIFICATIONS

SPEC
2 - 15
Spring force 3.92 ~ 5.88 N
(400 ~ 600 g, 14.1 ~ 21.2 oz)3.92 N
(400 g,
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) ----
Starter relay: Model/manufacturer ACA12115-1/NAis ----
Amperage rating 30 A ----
Coil winding resistance 72.00 ~ 88.00 Ω at 20 °C (68 °F) ----
Fuse (amperage × quantity):
Main fuse 10 A × 1 ----
Reserve fuse 10 A × 1 ----
Item Standard Limit
MAINTENANCE SPECIFICATIONS

SPEC
2 - 16
EC220001
GENERAL TORQUE SPECIFICATIONS
This chart specifies torque for standard fasten-
ers with standard I.S.O. pitch threads. Torque
specifications for special components or
assemblies are included in the applicable sec-
tions of this book. To avoid warpage, tighten
multi-fastener assemblies in a crisscross fash-
ion, in progressive stages, until full torque is
reached. Unless otherwise specified, torque
specifications call for clean, dry threads. Com-
ponents should be at room temperature.
A: Distance between flats
B: Outside thread diameter
EC230000
DEFINITION OF UNITS
A
(Nut) B
(Bolt) TORQUE
SPECIFICATION
Nm m ·kg ft ·lb
10 mm
12 mm
14 mm
17 mm
19 mm
22 mm 6 mm
8 mm
10 mm
12 mm
14 mm
16 mm 6
15
30
55
85
130 0.6
1.5
3.0
5.5
8.5
13 4.3
11
22
40
61
94
Unit Read Definition Measure
mm
cm millimeter
centimeter 10
-3 meter
10-2 meter Length
Length
kg kilogram 10
3 gram Weight
N Newton 1 kg × m/sec
2 Force
Nm
m  kg Newton meter
Meter kilogram N
× m
m × kg Torque
Torque
Pa Pascal N/m
2Pressure
N/mm Newton per millimeter N/mm Spring rate
L
cm
3 Liter
Cubic centimeter
—
—Volume or capacity
Volume or capacity
r/min Revolution per minute —Engine speed
GENERAL TORQUE SPECIFICATIONS/
DEFINITION OF UNITS

2 - 1
SPECCARACTERISTIQUES GENERALES
CARACTERISTIQUES
CARACTERISTIQUES GENERALES
Nom du modèle: TT-R50EV (USA, CDN, AUS, NZ)
TT-R50E (Europe, ZA)
Num éro de code de mod èle: 1P61 (USA)
1P62 (CDN)
1P63 (Europe, AUS, NZ, ZA)
Dimensions: Longueur totale 1.305 mm (51,4 in)
Largeur totale 595 mm (23,4 in)
Hauteur totale 775 mm (30,5 in)
Hauteur de la selle 555 mm (21,9 in)
Empattement 925 mm (36,4 in)
Garde au sol minimale 135 mm (5,31 in)
Poids à sec:
Sans huile ni carburant 54,0 kg (119 lb)
Moteur: Type de moteur 4 temps refroidi par air, simple ACT (SOHC)
Disposition des cylindres Monocylindre, inclin é vers l ’avant
Cylindr ée 49,5 cm
3 (3,02 cu.in)
Al ésage × course 36,0 × 48,6 mm (1,42 × 1,91 in)
Taux de compression 9,5 : 1
Pression à la compression (standard) 1.300 kPa (13 kg/cm
2, 185 psi) à 600 tr/mn
Syst ème de d émarrage D émarreur électrique
Syst ème de lubrification: Carter humide
Type ou qualit é d ’huile:
Huile moteur
(USA et CDN)
A –10 °C (14 °F) ou plus È
Yamalube 4 (10W-30) ou type SAE 10W-30
Huile moteur SE/SF/SG
A 5 °C (41 °F) ou plus É
Yamalube 4 (20W-40) ou type SAE 20W-40
Huile moteur SE/SF/SG
(Sauf USA et CDN)
API “SE/SF/SG ” ou qualit é sup érieure
0 10 30 50 70 90 110 130
-20 -10 0 10
20
30 40 50
È
É
˚F
˚C