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1974 Yamaha DT100 DT125 DT175 Enduro Motorcycle Service Manual

$32.00

SKU: ULIT-11614-37-00 Category:

Description

This 136 page, 1974 Yamaha DT100 DT125 DT175 Enduro Motorcycle Service Manual is a reproduction of the original, out of print manual. If you are looking for a collectible original, this is NOT it. However, this manual is nicely bound in a lay-flat format and includes a thick color cover and color fold out wiring diagrams and provides detailed service information, step-by-step repair instruction and maintenance specifications for 1974 Yamaha DT100, 125 and 175 motorcycles. Includes full color wiring diagrams.

This manual has been written by Yamaha Motor Company for use by Authorized Yamaha Dealers and their qualified mechanics. In light of this purpose it has been assumed that certain basic mechanical precepts and procedures inherent to our product are already known and understood by the reader. Without such basic knowledge, repairs or service to this model may render the machine unsafe, and for this reason we must advise that all repairs and/or service be performed by an Authorized Yamaha dealer who is in possession of the requisite basic product knowledge.

Motorcycles Covered

1974 Yamaha DT175A
1974 Yamaha DT125A
1974 Yamaha DT100A

Table of Contents

GENERAL INFORMATION

MACHINE IDENTIFICATION
A Serial Number
B Key System

SPECIFICATIONS
NOMENCLATURE
FEATURES
COMMON TOOLS
PERIODIC MAINTENANCE INTERVAIS
LUBRICATION

ENGINE TUNING AND CHASSIS ADJUSTMENTS
SPECIAL TOOLS

CHASSIS ADJUSTMENTS
A Front Brake Adjustments
B Rear Brake Adjustments
C Chain Adjustments
D Steering Head Adjustments

ENGINE TUNING
A Ignition Timing
B Carburetor Adjustments
C Adjusting Autolube
D Clutch Adjustments
E Air Cleaner

ENGINE AND TRANSMISSION OVERHAUL
SPECIAL TOOLS

TOP END OVERHAUL
A Cylinder Head Removal
B Cylinder Head Maintenance
C Cylinder Removal
D Cylinder Maintenance
E Piston Pin Removal
F Piston Pin and Bearing Maintenance
G Piston Ring Removal
H Piston Ring Maintenance
I Installing Piston Rings
J Piston Maintenance
K Installing Piston
L Muffler/Spark Arrester Maintenance

ENGINE REMOVAL AND DISASSEMBLY
A Engine Removal
B Crankcase Disassembly

ELECTRICAL SYSTEM FOR DT100A and DT175A
SPECIAL TOOLS
ELECTRICAL COMPONENTS
DESCRIPTION
CONNECTION DIAGRAM

IGNITION SYSTEM
A Description of Operation
B Ignition Timing
C Spark Gap Test
D Ignition Coil
E Condenser
F Spark Plug

LIGHTING SYSTEM
A Description
B Light Bulbs and Horn
C Lighting Circuits
D Lighting Tests and Checks — AC Circuit
E Lighting Tests and Checks – D C Circuit

CHARGING SYSTEM
A Flywheel Magneto
B Silicon Rectifier
C Switchs
D Charging Output Test
E Checking the Silicon Rectifier
F Battery
SWITCHES

ELECTRICAL SYSTEM FOR DT125A
SPECIAL TOOLS
ELECTRICAL COMPONENTS
DESCRIPTION
CONNECTION DIAGRAM

IGNITION SYSTEM
A Description of Operation
B Ignition Timing
C Spark Gap Test
D Ignition Coil
E Condenser
F Spark Plug

LIGHTING SYSTEM
A Description
B Light Bulbs and Horn
C Lighting Tests and Checks

STARTING AND CHARGING SYSTEM
A Charging Mode
B Starting Mode
C Checking the Dynamo
D Regulator (Voltage Regulator)
SWITCHES

CHASSIS AND SUSPENSION
WHEELS AND TIRES
A Front Wheel
B Rear Wheel
C Checking Rims and Spokes (Front and Rear Wheels)
D Tire Repairs

FRONT FORKS
A General
B Front Fork Oil Change
C Front Fork Disassembly
D Checking
E Assembling

STEERING HEAD
A Steering Head Adjustment
B Disassembly
C Inspection
D Reassembling

REAR SHOCK ABSORBERS AND SWING ARM
A Rear Shock Removal and Inspection
B Swing Arm Inspection
C Swing Arm Lubrication
D Swing Arm Removal

APPENDICES
1 TROUBLESHOOTING GUIDE
2 CONVERSION TABLES
3 TORQUE CHART
4 CONSUMER INFORMATION
5 CABLE ROUTING DIAGRAMS

Additional information

Weight 1.5 lbs
Dimensions 9 × 11 × 0.5 in

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