Yamaha NXC125 - Service Manual - Taller - Reparation - Reparaturanleitung - Officina

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YAMAHA NXC125 - MANUAL DE TALLER - SERVICE MANUAL

- English, French, German, Italian and Spanish Service Manual, in PDF format, to motorcycles Yamaha NXC125

CONTENTS:

GENERAL INFORMATION
- SCOOTER IDENTIFICATION
Vehicle identification number
Model label
- IMPORTANT INFORMATION
Preparation for removal and disassembly
Replacement parts
Gaskets, oil seals and O-rings
Lock washers/plates and pins
Cleft
Bearings and oil seals
elastic rings
Notes on equipment preparation
- CHECKING THE CONNECTIONS
- SPECIAL TOOLS

GENERAL SPECIFICATIONS
- GENERAL SPECIFICATIONS
- ENGINE SPECIFICATIONS
- CHASSIS SPECIFICATIONS
- ELECTRIC SPECIFICATIONS
- CONVERSION TABLE /
- GENERAL SPECIFICATIONS ABOUT PAIRS
- OF TIGHTENING
- TIGHTENING TORQUES
- ENGINE TIGHTENING TORQUES
Chassis tightening torques
Grease points and types of lubricant
Engine lubrication points and types of
- LUBRICANTS
Chassis grease points and types of
Lubricants
- CABLE ROUTE

INSPECTIONS AND ADJUSTMENTS
- INTRODUCTION
- PERIODIC MAINTENANCE AND GREASING INTERVALS
- Periodic maintenance and lubrication chart
- COVER AND PANEL
Saddle and side covers
Lower fairing and footpeg board
Top cover with handle,
leg protector,
- ENGINE
Valve clearance adjustment
Engine idle adjustment
Checking the exhaust gas at idle (measurement
Exhaust gas at idle when the induction system operates
Of air)
Checking and adjusting the exhaust gas at idle
(Measurement of exhaust gas at idle when the system is not operating
air induction)
Throttle cable slack adjustment
Checking the spark plug
Checking the ignition timing
Compression pressure measurement
Checking the engine oil level
Engine oil change
Changing the gearbox oil
Engine oil pressure measurement
Cleaning the air filter element
Cleaning the gearbox air filter element
V-belt
Checking the carburetor and manifold gasket
Of admission
Checking the fuel pipes and
Empty
Checking the crankcase breather tube
Checking the exhaust system

INSPECTIONS AND ADJUSTMENTS
- INTRODUCTION
- PERIODIC MAINTENANCE AND GREASING INTERVALS
- Periodic maintenance and lubrication chart
- COVER AND PANEL
Saddle and side covers
Lower fairing and footpeg board
Top cover with handle,
leg protector,
- ENGINE
Valve clearance adjustment
Engine idle adjustment
Checking the exhaust gas at idle (measurement
Exhaust gas at idle when the induction system operates
Of air)
Checking and adjusting the exhaust gas at idle
(Measurement of exhaust gas at idle when the system is not operating
air induction)
Throttle cable slack adjustment
Checking the spark plug
Checking the ignition timing
Compression pressure measurement
Checking the engine oil level
Engine oil change
Changing the gearbox oil
Engine oil pressure measurement
Cleaning the air filter element
Cleaning the gearbox air filter element
V-belt
Checking the carburetor and manifold gasket
Of admission
Checking the fuel pipes and
Empty
Checking the crankcase breather tube
Checking the exhaust system

CHASSIS
- FRONT WHEEL AND BRAKE DISC
Front wheel
Front wheel removal
Checking the front wheel
Checking the brake disc
Front wheel assembly
Front wheel installation
Wheel Static Balance Adjustment
Lead
- REAR WHEEL AND REAR BRAKE
Checking the rear wheel
Brake check
Brake shoe plate assembly
Wheel Static Balance Adjustment
Rear
- FRONT BRAKE
Front brake pads
Replacing the brake pads
Forward
front brake master cylinder
Disassembly of the front brake master cylinder
Disassembly of the front brake master cylinder
Checking the front brake master cylinder
Assembly and installation of the front brake master cylinder
Cylinder
front brake caliper
Disassembly of the front brake caliper
Disassembly of the front brake caliper
Checking the front brake caliper
Assembly and installation of the brake caliper
Forward
- FRONT FORK
Disassembly of the fork bars
Lead
Removing the fork legs
Lead
Disassembly of the fork bars
Lead
Checking the front fork bars
 
Mounting the front fork bars
Installing the fork legs
Lead
- HANDLEBAR
Handlebar removal
Checking the handlebar
Handlebar installation
- STEERING COLUMN
Bottom Bracket Removal
Checking the steering column
Steering column installation
- REAR SHOCK ABSORBER AND ARM ASSEMBLY
- REAR
Shock Absorber Assembly Removal
Rear
Checking the rear shock absorber assembly


ENGINE
- ENGINE
Cables and tubes
Pipes, air filter assembly, mounting screw
Engine and engine
Engine installation
- HEAD
Cylinder head removal
Checking the cylinder head
Cylinder head installation
- ROCKER AND CAMSHAFT
Removing the rocker arms and camshaft
Checking the rocker arms and rocker shafts

Checking the camshaft
Checking the timing chain,
Camshaft and chain guide sprockets
Of distribution
Checking the timing chain tensioner
 
Installing the camshaft and rocker arms
- VALVES AND VALVE SPRINGS
Valve removal
Checking valves and valve guides
Checking valve seats
Checking the valve springs
Valve installation
- CYLINDER AND PISTON
Cylinder and piston removal
Cylinder and piston check
Checking the piston rings
Checking the piston pin
Checking the chain guide
Distribution
Piston and cylinder installation
Belt drive
Air duct, pedal starter and crankcase cover
(left)
Pedal start
Installing the kick starter
V-belt, clutch and primary and discs
Secondary
Disassembly of the secondary disk
Removing the primary disk
Removing the secondary disc and belt
Trapezoidal
Disassembly of the secondary disk
Checking the clutch shoe
Checking the V-belt
Checking the primary disk
Checking the primary disc counterweights

Cursor Check
Checking the secondary disk
Mounting the primary disk
Mounting the secondary disk
Belt Drive Installation


- STARTER MOTOR CLUTCH
Checking the transmission gear
start
- AC MAGNETO
AC Magnet Removal
AC Magnet Installation
- OIL PUMP
Checking the oil pump
Oil pump installation
- GEARBOX
Checking the gearbox
Crankcase and crankshaft
Crankcase disassembly
Crankshaft Assembly Removal
Checking the timing chain and guides
From the distribution chain
Checking the crankshaft and connecting rod
Crankshaft installation
Crankcase assembly

CARBURETOR
- CARBURETOR
Checking the carburetor
Carburetor assembly
Carburetor installation
Fuel level measurement and adjustment
Checking the operation of the pump
Fuel
Checking the automatic choke
- AIR INDUCTION SYSTEM
Checking the air induction system

ELECTRIC SYSTEM
- ELECTRIC COMPONENTS
- WIRING DIAGRAM
- VERIFICATION OF THE CONTINUITY OF THE
- SWITCHES
- CHECKING THE SWITCHES
- CHECKING THE BULBS AND THE BUSHINGS
- LIGHT BULBS
Types of bulbs
Checking the condition of the bulbs
Checking the condition of the bulb sockets

- IGNITION SYSTEM
- CIRCUIT DIAGRAM
Troubleshooting
- ELECTRICAL STARTING SYSTEM
- CIRCUIT DIAGRAM
Operation of the circuit cutting system
start
Troubleshooting
Starting motor
Checking the starter motor
Starter motor assembly
- CHARGING SYSTEM
- CIRCUIT DIAGRAM
Troubleshooting
- LIGHTING SYSTEM
- CIRCUIT DIAGRAM
Troubleshooting
Checking the lighting system
- SIGNALING SYSTEM
- CIRCUIT DIAGRAM
Troubleshooting
Checking the signaling system
- CARBURETOR HEATER SYSTEM
- CIRCUIT DIAGRAM
Troubleshooting
- AUTOMATIC CHOKE SYSTEM
- CIRCUIT DIAGRAM
Troubleshooting

TROUBLESHOOTING
- STARTING FAULTS
Engine
Fuel system
Electric system
- INCORRECT ENGINE IDLE
Engine
Fuel system
Electric system
- POOR PERFORMANCE AT MEDIUM AND HIGH SPEEDS
Engine
Fuel system
- DEFECTIVE CLUTCH
The engine runs but the scooter does not move
The clutch slips
Poor starting performance
Poor performance at speed
- OVERHEATING
Engine
Fuel system
Chassis
Electric system
Poor brake performance
Defective front fork bars
oil leaks
malfunction
- UNSTABLE DRIVING
- DEFECTIVE LIGHTING OR SIGNALING SYSTEM
The headlight does not turn on
Headlight bulb burned out
Taillight/brake light does not come on
Burnt taillight/brake light bulb
The turn signal does not turn on
The turn signal flashes slowly
The turn signal stays on
The turn signal flashes quickly
The horn does not sound