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125 AS3
Service manual
Yamaha 125 AS3 Service Manual
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Service manual
(102 pages)
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Contents
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Table of Contents
Contents
General Information
Vehicle View
Specifications and Performance
Engine Performance Curve
Driving Performance Curve
Tools and Instruments Required for Servicing
Yamaha Autolube System - Automatic Separate Lubrication System
Periodic Inspection
Inspection and Adjustment of Autolube Pump
Bleeding
Method of Setting of Carburetor and Pump
Inspection of Pump's Minimum Stroke
Adjustment of Brakes
Adjustment of Rear Brake
Adjustment of Clutch
Adjustment of Carburetor
Adjustment of Idling Speed
Disassembly and Cleaning of Carburetor
Change of Transmission Oil
Inspection of Spark Plug
Cleaning the Air Cleaner
Cleaning of Cylinder and Piston
Change of Front Fork Oil
Adjustment of Ignition Timing
Cleaning of Fuel Strainer
Lubrication to Drive Chain
Adjustment of Driving Chain Tension
Retightening of Bolts and Nuts
5-Port Cylinder
Engine
Precautions for Engine Disassembly
Engine Dismounting Procedure
Cylinder Head Disassembly
Cylinder Head Inspection
Cylinder Head Reassembly
Cylinder Correcting Procedure
Removal of Piston Pins and Pistons
Piston Pins and Pistons Inspection
Reinstallation of Piston Rings
Crankcase Cover Removal
Installation of Piston
Crankcase Cover Installation
Clutch
Power Train
Clutch Disassembly
Clutch Inspection
Inspection of Friction Plates
Inspection of Clutch Housing and Spacer
Inspection of Spacer and Main Axle
Clutch Installation
Inspection for Deflection of Clutch Plates
Inspection of Push Rod
Installation of Cushion Ring
Primary Drive Gear Removal
Primary Drive Gear Inspection
Kick Starter Mechanism
Kick Starter Removal
Kick Starter Installation
Drive Sprocket Removal
Drive Sprocket Inspection
Drive Sprocket Installation
Shifting Mechanism
Removal of Gear Shift Arm Shaft
Shifting Mechanism Inspection
Crankcase Removal
Shifting Mechanism Adjustment
Crankcase Installation
Transmission Ass'y
Transmission Gears Layout
Transmission Ass'y Removal
Crankshaft
Transmission Ass'y Installation
Crankshaft Removal
Crankshaft Inspection
Crankshaft Installation
Bearings and Oil Seals
Bearings and Oil Seals Removal and Installation
Carburetor View and Parts Identification
Checking the Carburetor
Cleaning the Carburetor
Adjusting the Fuel Level
Synchronizing Carburetors
Adjusting the Idle Speed
Carburetor Setting Values
Air Cleaner Removal
Air Cleaner Cleaning
Chassis
Front Wheel
Front Wheel Removal
Front Wheel Inspection
Rear Wheel View
Rear Wheel Removal
Rear Wheel Inspection
Replacing Tires
Rear Sprocket Wheel Removal
Suspension and Adjustment
Rear Arm Inspection
Fuel Tank Removal
Front Fork Removal
Disassembly of Outer and Inner Tubes
Front Fork Inspection
Front Fork Reassembly
Front Fork Installation to Frame
Rear Cushion Check for Oil Leakage
Electrical Equipment
AC Generator Performance Curve
Specification of AC Generator
Inspection of AC Generator
Ignition Coil
Ignition Coil Inspection
Silicon Rectifier
Easy Measurement of Silicon Rectifier
Battery
Other Electrical Equipment Information
Precautions for Handling Electrical Equipment
Inspection of Battery Electrolyte
Handling of Silicon Rectifier
Circuit Diagram
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General Information
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Vehicle View
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Specifications and Performance
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This manual is also suitable for:
125 yas1
125 yas1-c
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