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Yamaha CS50 - User Manual

Yamaha CS50
204 pages
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2002
SERVICE MANUAL
CS50/Z
5RW1-AE1

Table of Contents

Questions and Answers

  • K
    Kyle McdanielAug 15, 2025
    What to do if the Yamaha Scooter ignition system fails?
    • V
      valenciaryanAug 15, 2025
      If the ignition system isn't working (no spark or intermittent spark), check the following: spark plug, ignition spark gap, spark plug cap resistance, ignition coil resistance, main switch, pickup coil resistance, main fuse, battery, and wiring connections of the entire ignition system.
  • L
    Lisa JohnstonAug 18, 2025
    What to do if Yamaha Scooter battery has condition issues?
    • T
      Todd WaltersAug 18, 2025
      If you are experiencing battery condition issues, you should recharge or replace the battery.
  • K
    Kathleen MeltonAug 22, 2025
    What to do if Yamaha CS50 Scooter spark plug has condition issues?
    • R
      rkellerAug 22, 2025
      If you are experiencing spark plug condition issues, re-gap or replace the spark plug.
  • D
    David ParkerAug 25, 2025
    What to do if Yamaha CS50 Scooter main fuse has issues?
    • B
      Barry TranAug 26, 2025
      If the main fuse has issues, replace the fuse.
  • K
    krista30Aug 28, 2025
    What to do if Yamaha Scooter ignition system wiring has issues?
    • C
      cfoxAug 28, 2025
      If the ignition system wiring has issues, properly connect or repair the wiring of the ignition system.
  • S
    Scott MarshallAug 31, 2025
    What to do if Yamaha Scooter ignition coil has issues?
    • V
      Vanessa AlvaradoAug 31, 2025
      If the ignition coil has issues, replace it.
  • M
    Misty BrownSep 4, 2025
    What to do if Yamaha Scooter spark plug cap has issues?
    • M
      Michael RodriguezSep 4, 2025
      If the spark plug cap has issues, replace it.
  • M
    moorejaySep 7, 2025
    What to do if Yamaha Scooter main switch has issues?
    • M
      Mrs. Shelly DavisSep 7, 2025
      If the main switch has issues, replace it.
  • M
    Michael CarpenterSep 12, 2025
    What to do if Yamaha CS50 pickup coil has issues?
    • E
      Erin DominguezSep 12, 2025
      If the pickup coil has issues, replace it.

Summary

Periodic Checks and Adjustments

Engine Checks and Adjustments

Procedures for adjusting idling speed, throttle cable, and checking engine oil and spark plug.

Chassis Checks and Adjustments

Checks and adjustments for brakes, steering head, wheels, tires, and front fork.

Electrical System Checks

Procedures for checking and charging the battery, checking fuses, and replacing bulbs.

Engine

Engine Inspection and Repair

Detailed inspection and repair procedures for cylinder head, piston, crankshaft, clutch, and transmission.

Engine Assembly and Adjustment

Instructions for assembling crankshaft, crankcase, starter system, and transmission components.

Electrical System

Ignition System Troubleshooting

Troubleshooting guide for ignition system faults like no spark.

Electric Starting System Troubleshooting

Troubleshooting guide for issues with the electric starting system.

Charging System Troubleshooting

Troubleshooting guide for problems with the battery charging system.

Lighting System Troubleshooting

Troubleshooting guide for lighting system faults like failed lights.

Signaling System Troubleshooting

Troubleshooting guide for signaling system faults like horn or turn signals.

Troubleshooting

Starting Failure; Hard Starting

Common causes and checks for engine starting issues.

Incorrect Engine Idling Speed

Potential causes and checks for engine idling speed problems.

CS50;Z 2002 Wiring Diagram

Yamaha CS50 Specifications

General IconGeneral
Fuel Capacity4.5 liters
Fuel SystemCarburetor
CoolingAir-cooled
TransmissionAutomatic
Starting SystemKick start
BrakesDrum brakes (front and rear)

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