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EAS00316
BELT DRIVE
V-BELT CASE COVER
BELT DRIVE
ENG %m
%. 10Nm(1.0m • kg, 7.2 ft • lb)
Order
1
2
3
4
5
Job/Part
Removing the V-belt case cover
Kickstarter
Cover
V-belt case cover
V-belt case cover gasket
Dowel pin
P|« 12Nm(1.2m • kg, 8.7 ft* lb)
Q’ty
Remarks
Remove the parts in the order listed.
1
1
1
1
2
For installation, reverse the removal procedure.
5-39
EAS00338
KICKSTARTER
BELT DRIVE
ENG
% m
Order Job/Part
Disassembling the kickstarter
V-belt case cover
1 Kick pinion gear
2 Kick pinion gear clip
3 Circlip/Plate washer
4 Kickstarter shaft
5 Torsion spring
6 Solid bush
Remarks
Q’ty
Remove the parts in the order listed.
Refer to”V-BELT CASE COVER“.
1
1
1/1 Refer to”INSTALLING THE KICKSTARTER”.
1
1
1
For assembly, reverse the disassembly procedure.
5-40
5-41
BELT DRIVE
ENG %m
EAS00340
INSTALLING THE KICKSTARTER
1. Install:
8solid b u s h 1
8kick shaft assembly 2
8torsion spring 3
2. Hook:
8torsion spring
NOTE:
Hook the spring e n d a on the kickstarter shaft b as shown, and hook the other end c on the projectiond .
3. Install:
8plain washer
8circlip 1 N e w
4. Install:
8kick pinion g e a r 1
8kick pinion gear c l i p 2
NOTE:
8 Lubricate the kick pinion gear clip and shaft with molybdenum disulfide oil.
8 Install the kick pinion gear clip at the position shown.
V-BELT AND PRIMARY/SECONDARY SHEAVE
BELT DRIVE
ENG %m
40Nm (4.0 m « kg, 28.9 f H b)
30Nm (3.0 m « kg, 21.7 f H b)
8
9
10
11
12
13
4
5
6
7
Order
1
2
3
Job/Part
Removing the V-belt and primary/secondary sheave
Primary sheave nut/Plate washer
Oneway clutch
Primary fixed sheave
Secondary sheave nut
Clutch housing
Secondary sheave
V-belt
Plate washer
Collar
Primary sliding sheave
Cam/Weight
Slider
Plate washer
Q’ty
Remarks
Remove the parts in the order listed.
1/1
1
1
1
1
1
1/6
3
1
1
1
1
1
Refer to”REMOVING THE PRIMARY
SHEAVE” and “INSTALLING THE SEC-
ONDARY SHEAVE, V-BELT AND PRI-
MARY SHEAVE” .
Refer to”REMOVING THE SECOND-
ARY SHEAVE AND V-BELT” and “IN-
STALLING THE SECONDARY
SHEAVE, V-BELT AND PRIMARY
SHEAVE” .
For installation, reverse the removal procedure.
5-42
SECONDARY SHEAVE
BELT DRIVE
ENG %m
Order Job/Part
Disassembling the secondary
Q’ty sheave
1 Clutch carrier nut
2 Clutch carrier
Remarks
Disassemble the parts in the order listed.
Refer to”DISASSEMBLING THE SEC-
1 ONDARY SHEAVE” and “ASSEMBLING
THE SECONDARY SHEAVE”.
3 Clutch shoe spring
4 Compression spring
5 Secondary spring seat
6 Guide pin
7 Secondary sliding sheave
8 O-ring
9 Oil seal
0 Secondary fixed sheave
3
1
1
2
1
2
2
1
Refer to”ASSEMBLING THE SECOND-
ARY SHEAVE” .
For assembly, reverse the disassembly procedure.
5-43
BELT DRIVE
ENG %m
EAS00317
REMOVING THE PRIMARY SHEAVE
1. Remove:
8primary sheave nut 1
8plate washer
8oneway clutch
8primary fixed sheave 2
NOTE:
While holding the primary fixed sheave with the rotor holding tool 3 , loosen the primary fixed sheave nut.
Rotor holding tool
90890-01235 (YU-01235)
-^— "\f ^^^^\\
Jf2/®
-^z^r^^
«S
If M.
/ / jS/Ki/
EAS00318
REMOVING THE SECONDARY SHEAVE AND
V-BELT
1 . Remove:
8secondary sheave nut 1
8clutch housing 2
NOTE:
While holding the clutch housing with the sheave holder 3 , loosen the secondary sheave nut. y-
Sheave holder
90890-01701 (YS-01880-A)
2. Loosen:
8clutch carrier nut c C
Do not remove the clutch carrier nut at this stage.
NOTE:
While holding the clutch carrier with the rotor holding tool 1 , loosen the clutch carrier nut one full turn with the socket wrench 2 .
5-44 f,
Rotor holding tool
90890-01235
YU-01235
Socket wrench(39mm)
90890-01493
%-©
1 // / /Py*—\ 1
BELT DRIVE
ENG
% m
3. Remove:
8secondary sheave 1
8V-belt 2
NOTE:
Remove the V-belt and secondary sheave from the primary sheave side.
EAS00319
DISASSEMBLING THE SECONDARY
SHEAVE
1. Remove:
8clutch carrier nut 1
NOTE:
Install the clutch spring holder 2 and clutch spring holder arm 3 onto the secondary sheave as shown. Then, compress the spring, and remove the clutch carrier nut 1 .
Clutch spring holder
90890-01337
YM-33285
YM-33285-6
5-45
CHECKING THE CLUTCH SHOES
The following procedure applies to all of the clutch shoes.
1. Check:
• clutch shoe
Damage/wear -» Replace the clutch shoes and springs as a set.
Glazed areas -» Sand with coarse sandpaper.
NOTE:
After sanding the glazed areas, clean the clutch with a cloth.
2. Measure:
• clutch shoe thickness
Out of specification -» Replace the clutch shoes and springs as a set.
j^ia
\1J
BELT DRIVE
Clutch shoe thickness
3.7mm(0.146in)
<Limit>:2.0mm(0.079in)
NOTE:
8 Inspect clutch shoesa.
8 After removing the clutch shoe spring, do not use them again.
8 Replace the all three as a set.
EAS00320
CHECKING THE V-BELT
1. Check:
• V-belt ®
Cracks/damage/wear -» Replace.
Grease/oil -» Clean the primary and secondary sheave.
2. Measure:
• V-belt width a
Out of specification -» Replace.
V-belt width
17.9 mm (0.705 in)
<Limit>: 16.1 mm (0.634 in)
CHECKING THE PRIMARY SHEAVE
1. Check:
• primary sliding sheave ©
• primary fixed sheave ®
Cracks/damage/wear -» Replace the primary sliding sheave, primary fixed sheave and V-belt.
5-46
2. Check:
• free movement
Stick or excessive play -» Replace the primary sliding sheave or collar.
NOTE:
Insert the collar ® into the primary sliding sheave ® , and check for free movement.
BELT DRIVE
ENG
EAS00321
CHECKING THE PRIMARY SHEAVE WEIGHTS
The following procedure applies to all of the primary sheave weights.
1. Check:
• primary sheave weight
Cracks/damage/wear -* Replace.
2. Measure:
• primary sheave weight outside diameter a
Out of specification -* Replace.
Primary sheave weight outside diameter
15 mm (0.591 in)
<Limit>: 14.5 mm (0.571 in)
CHECKING THE SLIDER
1. Check:
• slider ©
Damage/wear^ Replace
EAS00322
CHECKING THE SECONDARY SHEAVE
1. Check:
• secondary fixed sheave
• secondary sliding sheave
Cracks/damage/wear -* Replace the secondary fixed and sliding sheaves as a set.
5-47
2. Check:
• torque cam groove ©
Damage/wear -* Replace the secondary fixed and sliding sheaves as a set.
3. Check:
• guide pin (2)
Damage/wear -* Replace the secondary fixed and sliding sheaves as a set.
5-48
BELT DRIVE
ENG %m
EAS00323
ASSEMBLING THE PRIMARY SHEAVE
1 . Clean:
8primary fixed sheave 1
8primary sliding sheave 2
8collar 3
8primary sheave weights 4
NOTE:
Use thinner to clean up grease, dirt on the primary sliding sheave cam side 5 .
2. Install:
8primary sliding sheave 1
8primary sheave weights 2
8collar 3
3. Install:
8sliders 1
8cam 2
BELT DRIVE
ENG
# 1
1&m\
EAS00324
ASSEMBLING THE SECONDARY SHEAVE
1. Lubricate:
8secondary fixed sheave’s inner surface
1
8secondary sliding sheave’s inner surface
2
8oil seals
8bearings
(with the recommended lubricant)
Recommended lubricant
BEL-RAY assembly lube
®
2. Install:
8secondary sliding sheave 1
NOTE:
Install the secondary sliding sheave onto the secondary fixed sheave 2 with the oil seal guide
3 . m
Oil seal guide
90890-01384 (YM-33299)
5-49
3. Install:
8guide pin 1
4. Lubricate:
8guide pin groove 2
8o-ring New 3
(with the recommended lubricant)
Recommended lubricant
BEL-RAY assembly lube
®
®
©
I f ' / /F^r~\\
BELT DRIVE
ENG
% m
5. Install:
8secondary sheave 1
8spring
8clutch carrier 2
NOTE:
Attach the clutch spring holder 3 and clutch spring holder arm 4 onto the secondary sheave as shown. Then, compress the spring, and tighten the clutch carrier nut 5 .
Clutch spring holder
90890-01337 (YM-33285)
( YM-33285-6)
EAS00325
INSTALLING THE SECONDARY SHEAVE, V-
BELT AND PRIMARY SHEAVE
1. Install:
8V-belt 1
8secondary sheave 2 c C
Do not allow grease to contact the V-belt, secondary sheave assembly.
NOTE:
8 Install the V-belt onto the primary sheave side.
8 Install the V-belt with printed arrow mark on the V-belt facing in the direction shown in the illustration.
5-50
2. Tighten:
8 clutch carrier nut
X I 55Nm(5.5m
* kg, 39.8ft
* lb)
NOTE:
While holding the clutch carrier with the rotor holding tool © , tighten the clutch carrier nut with the socket wrench ® .
5-51
BELT DRIVE
ENG %m
Rotor holding tool
90890-01235
YU-01235
Socket wrench(39mm)
90890-01493
3. Install:
• clutch housing (T)
• secondary sheave nut ®
X I 40Nm(4.0m
* kg, 28.9ft
* lb)
NOTE:
Tighten the secondary sheave nut with the sheave holder ® .
^
Sheave holder
90890-01701
YS-01880-A
4. Install:
• primary fixed sheave ©
• oneway clutch
• plate washer
• primary sheave nut ®
X I 30Nm(3.0m
* kg, 21.7ft
* lb)
NOTE:
While holding the primary fixed sheave with the rotor holding tool ® , tighten the primary fixed sheave nut.
5-52
BELT DRIVE
ENG %m
5. Position:
8V-belt 1
NOTE:
Position the V-belt in the primary sheave 2
(when the pulley is at its widest position) and in the secondary sheave 3 (when the pulley is at its narrowest position), and make sure the Vbelt is tight.
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Table of contents
- 8 Scooter Identification
- 8 Vehicle Identification Number
- 8 Model Label
- 9 Features
- 9 Outline Of The FI System
- 10 FI System
- 11 Important Information
- 11 Preparation For Removal And Disassembly
- 11 Replacement Parts
- 11 Gaskets, Oil Seals And O-rings
- 12 Lock Washers/Plates And Cotter Pins
- 12 Bearings And Oil Seals
- 12 Circlips
- 13 Equipment Preparation
- 14 Checking The Connections
- 15 Special Tools
- 20 General Specifications
- 21 Engine Specifications
- 31 Chassis Specifications
- 34 Electrical Specifications
- 37 Conversion Table
- 37 General Tightening Torque Specifications
- 38 Tightening Torques
- 38 Engine
- 40 Chassis
- 42 Lubrication Points And Lubricant Types
- 42 Engine
- 44 Chassis
- 45 Cooling System Diagrams
- 48 Cable Routing
- 56 Introduction
- 57 Periodic Maintenance And Minor Repair
- 57 Periodic Maintenance Chart For The Emission Control System
- 58 General Maintenance And Lubrication Chart
- 60 Cover And Panel
- 60 Side Covers And Tail/brake Light
- 62 Single Seat And Trunk
- 63 Leg Shield 1,2
- 64 Footrest Board And Inner Fender
- 65 Engine
- 65 Adjusting The Valve Clearance
- 71 Checking The Engine Idling Speed
- 72 Adjusting The Throttle Cable Free Play
- 73 Checking The Spark Plug
- 75 Checking The Ignition Timing
- 77 Measuring The Compression Pressure
- 79 Checking The Engine Oil Level
- 80 Changing The Engine Oil
- 82 Changing The Transmission Oil
- 83 Measuring The Engine Oil Pressure
- 85 Replacing The Air Filter Element
- 87 Checking The Throttle Body Joint And Intake Manifold
- 87 Checking The Fuel Hose
- 88 Checking The Breather Hoses
- 89 Checking The Exhaust System
- 90 Checking The Coolant Level
- 91 Checking The Cooling System
- 92 Changing The Coolant
- 95 Chassis
- 95 Adjusting The Front Brake
- 95 Adjusting The Rear Brake
- 96 Checking The Front And Rear Brake Shoes
- 97 Checking And Adjusting The Steering Head
- 99 Checking The Front Fork
- 100 Checking The Tires
- 103 Checking The Wheels
- 103 Checking And Lubricating The Cables
- 104 Lubricating The Levers And Pedals
- 104 Lubricating The Centerstand
- 105 Electrical System
- 105 Checking And Charging The Battery
- 111 Checking The Fuse
- 113 Replacing The Headlight Bulb
- 114 Adjusting The Headlight Beam
- 117 Front Wheel And Brake
- 118 Front Wheel
- 119 Front Brake Shoe Plate
- 120 Removing The Front Wheel
- 120 Disassembling The Brake Shoe Plate
- 121 Checking The Front Wheel
- 122 Checking The Speedometer Gear Unit
- 123 Checking The Brake
- 124 Assembling The Brake Shoe Plate
- 125 Assembling The Front Wheel
- 126 Installing The Front Wheel
- 127 Adjusting The Front Wheel Static Balance
- 129 Rear Wheel And Brake
- 130 Removing The Rear Wheel
- 130 Checking The Rear Wheel
- 131 Checking The Rear Wheel Drive Hub
- 131 Checking The Brake
- 132 Assembling The Brake Shoe Plate
- 134 Installing The Rear Wheel
- 134 Adjusting The Rear Wheel Static Balance
- 135 Front Fork
- 137 Removing The Front Fork Legs
- 137 Disassembling The Front Fork Legs
- 139 Checking The Front Fork Legs
- 140 Assembling The Front Fork Legs
- 142 Installing The Front Fork Legs
- 143 Handlebar
- 145 Removing The Handlebar
- 145 Checking The Handlebar
- 146 Installing The Handlebar
- 148 Steering Head
- 148 Handlebar Bracket And Headlight Stay Bracket
- 149 Lower Bracket
- 150 Removing The Lower Bracket
- 151 Checking The Steering Head
- 152 Installing The Steering Head
- 153 Rear Shock Absorber Assembly
- 154 Removing The Rear Shock Absorber Assembly
- 154 Checking The Rear Shock Absorber Assembly
- 155 Installing The Rear Shock Absorber Assembly
- 158 Engine Removal
- 158 Leads, Hoses And Muffler
- 160 Engine
- 161 Installing The Engine
- 162 Cylinder Head
- 164 Removing The Cylinder Head
- 166 Checking The Cylinder Head
- 167 Installing The Cylinder Head
- 170 The Rocker Arms And Camshaft
- 171 Removing The Rocker Arms And Camshaft
- 172 Checking The Camshaft
- 173 Checking The Rocker Arms And Rocker Arm Shafts
- 174 Checking The Timing Chain, Camshaft Sprocket, And Timing Chain Guides
- 175 Checking The Timing Chain Tensioner
- 176 Installing The Camshaft And Rocker Arms
- 177 Valves And Valve Springs
- 179 Removing The Valves
- 181 Checking The Valves And Valve Guides
- 183 Checking The Valve Seats
- 185 Checking The Valve Springs
- 186 Installing The Valves
- 188 Cylinder And Piston
- 189 Removing The Cylinder And Piston
- 190 Checking The Cylinder And Piston
- 192 Checking The Piston Rings
- 193 Checking The Piston Pin
- 194 Checking The Timing Chain Guide
- 194 Installing The Piston And Cylinder
- 196 Belt Drive
- 196 V-belt Case Cover
- 197 Kickstarter
- 198 Installing The Kickstarter
- 199 V-belt And Primary/Secondary Sheave
- 200 Secondary Sheave
- 201 Removing The Primary Sheave
- 201 Removing The Secondary Sheave And V-belt
- 202 Disassembling The Secondary Sheave
- 202 Checking The Clutch Shoes
- 203 Checking The V-belt
- 203 Checking The Primary Sheave
- 204 Checking The Primary Sheave Weights
- 204 Checking The Slider
- 204 Checking The Secondary Sheave
- 205 Assembling The Primary Sheave
- 206 Assembling The Secondary Sheave
- 207 Installing The Secondary Sheave, V-belt And Primary Sheave
- 210 Starter Clutch And AC Magneto
- 210 Stator Coil Assembly
- 212 Starter Clutch
- 213 Removing The AC Magneto
- 214 Removing The Starter Clutch
- 215 Checking The Starter Clutch
- 216 Installing The Starter Clutch
- 216 Installing The AC Magneto
- 218 Oil Pump
- 219 Checking The Oil Pump
- 220 Assembling The Oil Pump
- 220 Installing The Oil Pump
- 221 Transmission
- 222 Checking The Transmission
- 223 Crankshaft
- 223 Crankshaft Assembly
- 225 Disassembling The Crankcase
- 226 Removing The Crankshaft Assembly
- 226 Checking The Crankshaft And Connecting Rod
- 227 Checking The Crankcase
- 228 Checking The Timing Chain And Timing Chain Guide(intake Side)
- 228 Checking The Bearings And Oil Seals
- 228 Checking The Circlips And Washers
- 229 Installing The Crankshaft
- 229 Assembling The Crankcase
- 232 Radiator
- 233 Checking The Radiator
- 234 Installing The Radiator
- 235 Thermostat
- 236 Checking The Thermostat
- 237 Installing The Thermostat
- 238 Water Pump
- 240 Disassembling The Water Pump
- 240 Checking The Water Pump
- 241 Assembling The Water Pump
- 242 Installing The Water Pump
- 244 Fuel Injection System
- 245 Wiring Diagram
- 247 ECU's Self-Diagnostic Function
- 248 Checking For A Defective Engine Trouble Warning Light Bulb
- 248 Self-Diagnostic Fanction Table
- 250 Troubleshooting Chart
- 251 Diagnostic Mode
- 255 Troubleshooting Details
- 269 Throttle Body And Fuel Injector
- 269 Throttle Body
- 270 Fuel Injector And Fuel Hose
- 271 Fuel Tank
- 272 Removing The Fuel Hose
- 272 Removing The Fuel Pump
- 273 Checking The Throttle Body
- 274 Installing The Fuel Pump
- 274 Installing The Fuel Hose
- 275 Checking The Fuel Pump And Pressure Regulator Operation
- 275 Checking The Throttle Position Sensor
- 277 Checking The ISC (Idle Speed Control) Valve
- 278 Air Induction System
- 278 Air Injection
- 278 Air Cut-Off Valve
- 279 Air Induction System Diagrams
- 280 Air Cut-Off Valve And Air Filter Case
- 281 Checking The Air Induction System
- 283 Electrical Components
- 284 Wiring Diagram
- 286 Checking Switch Continuity
- 287 Checking The Switches
- 288 Checking The Bulbs And Bulb Sockets
- 288 Types Of Bulbs
- 289 Checking The Condition Of The Bulbs
- 290 Checking The Condition Of The Bulb Sockets
- 291 Ignition System
- 291 Circuit Diagram
- 292 Troubleshooting
- 296 Electric Starting System
- 296 Circuit Diagram
- 297 Starting Circuit Cut-off System Operation
- 298 Troubleshooting
- 302 Starter Motor
- 303 Checking The Starter Motor
- 305 Assembling The Starter Motor
- 306 Charging System
- 306 Circuit Diagram
- 307 Troubleshooting
- 309 Lighting System
- 309 Circuit Diagram
- 310 Troubleshooting
- 312 Checking The Lighting System
- 316 Signaling System
- 316 Circuit Diagram
- 317 Troubleshooting
- 318 Checking The Signaling System
- 324 Cooling System
- 324 Circuit Diagram
- 325 Troubleshooting
- 327 Checking The Cooling System
- 331 Starting Failure/Hard Starting
- 331 Engine
- 331 Fuel System
- 331 Electrical Systems
- 332 Incorrect Engine Idling Speed
- 332 Engine
- 332 Fuel System
- 332 Electrical Systems
- 333 Poor Medium-And-High-Speed Performance/Faulty Clutch
- 333 Engine
- 333 Fuel System
- 333 Faulty Clutch
- 333 Engine Operates But Scooter Will Not Move
- 333 Clutch Slips
- 333 Poor Starting Performance
- 334 Poor Speed Performance
- 334 Overheating
- 334 Engine
- 334 Cooling System
- 334 Fuel System
- 334 Chassis
- 334 Electrical Systems
- 334 Overcooling
- 334 Cooling System
- 335 Poor Braking Performance
- 335 Faulty Front Fork Legs
- 335 Leaking Oil
- 335 Malfunction
- 335 Unstable Handling
- 336 Faulty Lighting Or Signaling System
- 336 Headlight Does Not Come On
- 336 Headlight Bulb Burnt Out
- 336 Tail/brake Light Does Not Come On
- 336 Tail/brake Light Bulb Burnt Out
- 336 Turn Signal Does Not Come On
- 336 Turn Signal Blinks Slowly
- 336 Turn Signal Remains Lit
- 336 Turn Signal Blinks Quickly
- 336 Horn Does Not Sound