Yard-Man YM20CS User Manual

Operator’s Manual
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Starting
TM
2-Cycle Gasoline Trimmer
YM20CS
SAVE THESE INSTRUCTIONS
For service call 1-800-800-7310 in the United States, or
1-800-668-1238 in Canada to obtain a list of authorized
service dealers near you. For more details about your unit, visit
our website at www.yardman.com.
DO NOT RETURN THE UNIT TO THE RETAILER. PROOF
OF PURCHASE WILL BE REQUIRED FOR WARRANTY
SERVICE.
THIS PRODUCT IS COVERED BY ONE OR MORE U.S.
PATENTS. OTHER PATENTS PENDING.
Service on this unit both within and after the warranty period
should be performed only by an authorized and approved
service dealer.
All information, illustrations, and specifications in this manual
are based on the latest product information available at the
time of printing. We reserve the right to make changes at any
time without notice.
Copyright© 2007 MTD SOUTHWEST INC, All Rights Reserved.
WARNING: When using the unit, you must follow
the safety rules. Please read these instructions
before operating the unit in order to ensure the
safety of the operator and any bystanders. Please
keep these instructions for later use.
SPARK ARRESTOR NOTE
NOTE: For users on U.S. Forest Land and in the states of
California, Maine, Oregon and Washington. All U.S. Forest
Land and the state of California (Public Resources Codes 4442
and 4443), Oregon and Washington require, by law that certain
internal combustion engines operated on forest brush and/or
grass-covered areas be equipped with a spark arrestor,
maintained in effective working order, or the engine be
constructed, equipped and maintained for the prevention of
fire. Check with your state or local authorities for regulations
pertaining to these requirements. Failure to follow these
requirements could subject you to liability or a fine. This unit is
factory equipped with a spark arrestor. If it requires
replacement, ask your LOCAL SERVICE DEALER to install the
Accessory Part #753-05169 Spark Arrestor Kit.
CALIFORNIA PROPOSITION 65 WARNING
P/N 769-02890 (01/07)
TABLE OF CONTENTS
Service Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Rules for Safe Operation . . . . . . . . . . . . . . . . . . . . . . . . . .2
Oil and Fuel Information . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Know Your Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Assembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Starting/Stopping Instructions . . . . . . . . . . . . . . . . . . . . . .7
Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Maintenance and Repair Instructions . . . . . . . . . . . . . . . .9
Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .E18
WARNING
THE ENGINE EXHAUST FROM THIS PRODUCT CONTAINS
CHEMICALS KNOWN TO THE STATE OF CALIFORNIA TO
CAUSE CANCER, BIRTH DEFECTS OR OTHER
REPRODUCTIVE HARM.

Yard-Man YM20CS Specifications

General

Brand	Yard-Man
Model	YM20CS
Category	Trimmer
Language	English

Summary

Rules for Safe Operation

Important Safety Instructions

Essential safety guidelines for operating the trimmer, including personal protection and area preparation.

Safety Warnings for Gas Units

Precautions for handling gasoline and fueling the unit to prevent fire and explosion hazards.

While Operating

Guidelines for safe operation of the trimmer, including starting, handling, and avoiding hazards.

Other Safety Warnings

Additional safety advice, including storage, transport, and general unit care.

Safety and International Symbols

Oil and Fuel Information

Details on proper fuel and oil types, mixing ratios, and handling precautions for the 2-cycle engine.

Oil and Fuel Mixing Instructions

Step-by-step guide for correctly mixing gasoline and 2-cycle oil for optimal engine performance.

Know Your Unit

Applications

Describes the various uses and tasks the trimmer can perform, such as cutting grass and edging.

Assembly Instructions

Install and Adjust the D-Handle

Steps to correctly attach and position the D-handle for comfortable and safe operation.

Install the Cutting Attachment Shield

Instructions for securely mounting the cutting attachment shield for operator safety.

Operating the EZ-Link System

Guidance on using the EZ-Link system to attach and detach various accessories.

Removing the Cutting Attachment or Add-Ons

Procedure for safely disconnecting cutting attachments or accessories from the EZ-Link coupler.

Installing the Cutting Attachment or Add-Ons

Steps for securely attaching cutting attachments or accessories to the EZ-Link coupler.

Starting and Stopping Instructions

Starting Instructions

Procedures for priming, choking, and pulling the starter rope to start the trimmer engine.

Stopping Instructions

How to properly shut down the trimmer engine using the stop control.

Operating Instructions

Holding the Trimmer

Correct posture and grip for operating the trimmer safely and effectively.

Adjusting Trimming Line Length

Method for extending the trimmer line using the bump head mechanism during operation.

Tips for Best Trimming Results

Techniques and advice for efficient cutting, line wear, and engine performance.

Decorative Trimming

Specific technique for trimming around trees, posts, and fences at a 30-degree angle.

Maintenance and Repair Instructions

Maintenance Schedule

Table outlining required maintenance tasks and their recommended frequencies.

Line Installation

Instructions for replacing the trimmer line, covering both SplitLine and standard single line.

Air Filter Maintenance

Procedures for removing, cleaning, and reinstalling the air filter and cover.

Spark Arrestor Maintenance

Steps for accessing, cleaning, and reinstalling the spark arrestor screen and hood.

Carburetor Adjustment

Guidance on adjusting the idle speed screw for proper engine idling.

Replacing the Spark Plug

Procedure for removing, inspecting, and replacing the spark plug.

Cleaning and Storage

Instructions for cleaning the trimmer and preparing it for storage.

Troubleshooting

Engine Will Not Start

Common causes and actions for when the trimmer engine fails to start.

Engine Will Not Idle

Troubleshooting steps for when the engine does not run smoothly at idle speed.

Engine Will Not Accelerate

Causes and solutions when the trimmer engine fails to increase speed.

Engine Lacks Power or Stalls When Cutting

Diagnosing and fixing issues where the engine loses power or stops during operation.

Cutting Attachment Will Not Advance Line

Troubleshooting for problems with the line not extending from the cutting head.

Cutting Line Advances Uncontrollably

Identifying and resolving issues where the cutting line extends excessively.

Specifications

Engine Specifications

Detailed technical data for the trimmer's engine, including type, displacement, and fuel ratio.

Drive Shaft & Cutting Attachment Specifications

Technical details for the drive shaft, cutting mechanism, and line specifications.

Manufacturer's Limited Warranty

Warranty Coverage and Exclusions

Details on what the limited warranty covers, its duration, and common exclusions.

How to Obtain Service

Instructions on how to access warranty service through authorized dealers.

State Law and Legal Rights

Information on how state laws relate to warranty rights and legal protections.