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
2 - 11
SPECCARACTERISTIQUES D’ENTRETIEN
CHASSIS
Elément Standard Limite
Système de direction:
Type de roulement de direction Roulement oblique ----
Suspension avant:
Débattement de fourche 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) ----
Raideur de ressort, standard 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) ----
Qualité d’huile Huile de fourche 15W ou équivalente ----
Suspension arrière:
Débattement d’amortisseur 48 mm (1,89 in) ----
Longueur de ressort libre 169 mm (6,65 in) ----
Longueur monté165 mm (6,5 in) ----
Raideur de ressort, standard K = 45,6 N/mm
(4,65 kg/mm, 260 lb/in)----
Ressort en option Non ----
Pression du gaz enfermé2.000 kPa
(20 kg/cm
2, 290 psi)----
Bras oscillant:
Limite de jeu du bras oscillant
A l’extrémité---- 1,0 mm (0,04 in)
Jeu 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 la jante avant 14 × 1,40/acier ----
Taille/matériau de la jante arrière 12 × 1,60/acier ----
Limite de voile de la 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 la chaîne (15 maillons) ---- 194,3 mm
(7,65 in)
3 - 3
INSP
ADJ
PRE-OPERATION INSPECTION AND MAINTENANCE
PRE-OPERATION INSPECTION AND MAINTENANCE
Before riding for break-in operation or practice, make sure the machine is in good operating condi-
tion.
Before using this machine, check the following points.
GENERAL INSPECTION AND MAINTENANCE
Item Routine Page
Brake Check operation/adjustment. P3-12
Engine oil Change oil as required. P3-6 ~ 8
Drive chain Check alignment/adjustment/lubrication. P3-13 ~ 15
Spark plug Check color/condition. P3-23
Throttle Check for proper throttle cable operation. P3-4
Air filter Foam type – must be clean and damp oil always P3-4 ~ 5
Wheels and tires Check pressure/runout/spoke tightness/bead stopper/axle nuts. P3-17 ~ 20
Fittings/fasteners Check all – tighten as necessary. P2-13
3 - 6
INSP
ADJ
ENGINE OIL LEVEL INSPECTION
1. Start the engine, warm it up for several
minutes, and then turn off the engine and
wait for five minutes.
2. Place the machine on a level place and
hold it up on upright position by placing the
suitable stand under the engine.
3. Remove:
Dipstick 1
4. Check:
Oil level
Oil level should be between maximum a
and minimum b marks.
Oil level is low → Add oil to proper level.
NOTE:
When inspecting the oil level, do not screw the
dipstick into the oil tank. Insert the gauge
lightly.
(For USA and CDN)
CAUTION:
Do not add any chemical additives.
Engine oil also lubricates the clutch and
additives could cause clutch slippage.
Do not allow foreign material to enter the
crankcase.
Recommended oil:
At –10 °C (10 °F) or higher È:
Yamalube 4 (10W-30) or SAE
10W-30 type SE/SF/SG motor
oil
At 5 °C (40 °F) or higher É:
Yamalube 4 (20W-40) or SAE
20W-40 type SE/SF/SG motor
oil010 30 50 70
90110
130
-20
-10010
20 30 40
50
È
É
˚C ˚F
ENGINE OIL LEVEL INSPECTION
