Official 1965-1973 Honda C50 C50M CL70 CD70 C65 C65M C70 S50 S65 C70M Factory Service Manual

Description

This Official 1965-1973 C50 C50M CL70 CD70 C65 C65M C70 S50 S65 C70M Factory Service Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1965 1966 1967 1968 1969 1970 1971 1972 and 1973 Honda 50 series C50, C50M, S50 and C50MK1 and the Honda 65 series C65, C65M and S65 motorcycles. Contains complete information on servicing your machine including wiring diagram, special tools and troubleshooting information.

This original publication is out of print and available as a Honda reproduction.

This Official  1965-1973 Honda C50 CL70 maintenance and service guide contains everything you need to service Honda 50 series C50, C50M, S50 and C50MK1 and the Honda 65 series C65, C65M and S65.

By following the described and illustrated instructions contain herein, proper servicing can be done with relative simplicity. Not only will this service manual help the professional technician but it is a valuable reference to the do-it-yourselfer.

At the back of this Honda shop manual is a CL70, C70, C70M and CD70 supplement to HONDA 50 • 65 descriptions. Though this Honda supplement manual includes practically all the necessary information on everyday servicing, reference should be made to Honda SM 50/65 for detailed fundamentals. The special tool kit for Honda CL70, C70. C70M and CD70 is the some with that for C65/S65 (Tool Set No. 07900-1180000).

The description is given with the Honda CL70 as a basic model, and specification and information are applicable to both the Honda C70 and C70M scooters unless otherwise specified.

1965-1973 Honda C50 C50M CL70 CD70 C65 C65M C70 S50 S65 C70M Service Manual Table of Contents

FEATURES
Engine
Frame (C50, C50M, C65, C65M, C50MK1) –
Frame (S50, S65)

SPECIAL TOOLS
Tools Necessary for Disassembly and Reassembly of the Engine
Tools Necessary for Disassembly and Reassembly of the Frame

ENGINE
Engine
Engine Description
Power Transmission System
Engine Removal and installation
Removal
Installation
Lubrication System
Oil Pump Principle
Disassembly
Inspection
Reassembly

Cylinder Head
Cylinder Head Design
Disassembly
Inspection and repair
Reassembly
Valve Seat Contact Surface
Inspection of Valve Contact Area
Camshaft
Inspection
Cylinder
Disassembly
Inspection
Reassembly
Piston
Piston Ring
Disassembly
Piston and Piston Ring Inspection
Reassembly
Valve Operating Mechanism
Disassembly
Inspection
Reassembly
Cam Chain Tensioner
Disassembly
Inspection
Reassembly

Right Crankcase Cover
Disassembly
Reassembly
Clutch
Disassembly
Inspection
Reassembly
Crankcase
Breather

Crankshaft
Disassembly
Inspection
Reassembly
Transmission
Disassembly •
Inspection
Reassembly
Kick Starter
Disassembly
Inspection
Reassembly
Carburetor (C50, C50M, C65, C65M)
Air System
Fuel System
Main system
Slow system
Float Chamber
Choke (Starting)
Function of the Respective Components
Main jet –
Air jet
Needle jet
Jet needle
Throttle valve
Slow jet
Air screw
Adjusting the Carburetor
High speed adjustment
Adjusting the intermediate speed
Adjusting the slow speed
Adjusting the idle
Carburetor ($50, $65)
Air Flow
Fuel Flow
Main system
Slow system
Float Chamber
Choke (Starting system)
Adjusting the Fuel Level ‘6 Carburetor Setting Table
FRAME
Handle
Handle Construction
Disassembly
Inspection
Reassembly
Front Fork
Disassembly
Inspection
Reassembly
Front Cushion
Front Cushion Construction
Disassembly
Inspection
Reassembly
Rear Cushion
Rear Cushion Construction
Disassembly
Inspection
Reassembly
Front Wheel
Disassembly
Inspection
Reassembly
Rear Wheel
Rear Wheel Construction
Disassembly
Inspection
Reassembly
Braking System
Disassembly
Inspection
Reassembly
Rear Fork Construction
Disassembly
Inspection
Reassembly
Drive Chain
Disassembly
Inspection
Reassembly
Air Cleaner
Air Cleaner Construction •
Disassembly
Inspection
Reassembly
Frame Body
Muffler

ELECTRICAL SYSTEM
Starting System
Trouble Shooting and Repair
Charging System
Flywheel AC Generator and Ignition Coil
AC Generator
Table of Specifications and Performance
Inspecting Sparking Performance
Trouble Diagnosing the Flywheel Generator
Spark Advancer
Battery
Construction
Rating
Instruction on Use and Servicing
Servicing During Use
Battery Charging Procedure
Trouble Shooting and Preventative Maintenance
Trouble Shooting and Corrective Action
Spark Plug
Spark Plug Condition
Heat Range of the Spark Plug
Spark Plug Reach
Spark Plug Gap
Main Spark Plug Trouble and Corrective Action
Turn signal Lamp
Installation Instruction
Turn signal Trouble and Corrective Action
Headlight
Headlight Trouble and Corrective Action
Horn
Battery Installation
Selenium Rectifier
Checking the Condition of the Selenium Rectifier
Speedometer
Speedometer Trouble and Corrective Action
Inspecting Procedure

PERIODIC ADJUSTMENT
Maintenance Inspection
Engine Adjustment
Measuring Compression
Valve Tappet Adjustment
Ignition Timing Adjustment
Contact Points
Spark Plug Adjustment
Fuel Supply System
Fuel Strainer Cleaning
Oil Filter Screen Cleaning
Air Cleaner Cleaning
Clutch Adjustment
Carburetor Cleaning and Adjustment
Lubrication
Parts Not Requiring Periodic Oil Change or Lubrication
Engine Oil Change
Greasing
Drive Chain Adjustment
Brake Adjustment
Front Brake Adjustment
Rear Brake Adjustment
Muffler Cleaning
Spoke Torquing
Battery Inspection
Security Inspection of Parts (C50, C50M, C65, C65M)
Security Inspection of Parts (S50, S65)
Periodic Inspection and Servicing
Daily Inspection
Periodic Inspection

TROUBLE SHOOTING
Main Engine Troubles
Carburetor Trouble
Engine Noise
Steering System
Clutch System
Gear Change System
Suspensions
Brake System
Drive Chain

SPECIFICATIONS & PERFORMANCES
Specifications
Engine Performance Curve
Dimensional Drawing
Wiring Diagram

CL70 • C70 • C70M • CD70 CONTENTS
SPECIFICATION
Specification
ENGINE
Engine Removal and Installation
Lubrication System
Cylinder and Cylinder Head
Cam Chain Tensioner
Piston and Piston Rings
Clutch
Crankshaft
Transmission
Gear Shift Mechanism
Kick Starter
Carburetor
FRAME
Front Wheel and Suspension
Rear Wheel and Suspension
ELECTRICAL SYSTEM
Description
Specification and Inspection
Wiring Diagram

High Quality reproduction of the original out of print manual.