Craftsman CMXGSAMY42N4 User Manual

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769-26125 / 00 06/21

2-CYCLE GAS CHAINSAW

MOTOSIERRA DE GAS DE 2 TIEMPOS

OPERATOR’S MANUAL | MANUAL DEL OPERADOR

S1450 | S1600 | S1800

CMXGSAMY42N4 | CMXGSAMY42N6 | CMXGSAMY42N8

1-888-331-4569 WWW.CRAFTSMAN.COM

IF YOU HAVE QUESTIONS OR COMMENTS, CONTACT US.

SI TIENE DUDAS O COMENTARIOS, CONTÁCTENOS.

ORIGINAL INSTRUCTIONS | TRADUCCIÓN DE LAS INSTRUCCIONES ORIGINALES

Questions and Answers:

D
dclarkAug 13, 2025
Why won't my Craftsman CMXGSAMY42N4 engine start?
- C
  Christopher BentleyAug 13, 2025
  Your Craftsman Chainsaw engine might not be starting due to several reasons: * The fuel tank could be empty; if so, fill it with properly-mixed fuel. * You might not have pressed the primer bulb enough; press it 10 times or until fuel is visible. * The engine could be flooded; in this case, move the choke knob to Position 2, press the throttle lockout, squeeze the throttle control, and pull the starter rope. * The fuel might be old (over 30 days) or improperly mixed; drain the fuel tank and add fresh, properly-mixed fuel.
L
Lindsay BarronAug 16, 2025
What to do if my Craftsman CMXGSAMY42N4 Chainsaw engine lacks power or stalls?
- G
  Glen BarnettAug 17, 2025
  If your Craftsman Chainsaw engine lacks power or stalls, it could be due to: * Old or improperly mixed fuel: Drain the fuel tank and add fresh, properly-mixed fuel. * A dirty air filter: Clean or replace the air filter.
A
Amanda YoungAug 20, 2025
What to do if the Craftsman CMXGSAMY42N4 Chainsaw guide bar and saw chain are running hot and smoking?
- D
  Duane SimmonsAug 20, 2025
  If the guide bar and saw chain are running hot and smoking, consider the following: * The saw chain tension might be too tight; adjust the saw chain tension. * The chain oil reservoir could be empty; refill it. * The guide bar groove and oil passages may be dirty; clean them. * The automatic oiler flow might be too low; increase the oil flow.
G
Grant PooleAug 25, 2025
Why Craftsman Chainsaw engine will not accelerate?
- C
  Charles HardyAug 25, 2025
  If your Craftsman Chainsaw engine will not accelerate, the possible causes are: * The fuel is old (over 30 days) and/or improperly mixed, so drain the fuel tank and add fresh, properly-mixed fuel. * The air filter is dirty, so clean or replace the air filter.
D
Deborah LloydAug 28, 2025
What to do if the saw chain on my Craftsman Chainsaw comes off the guide bar?
- M
  Mr. William Collier IIAug 28, 2025
  If the saw chain keeps coming off the guide bar, it might be because the saw chain tension is too loose. Adjust the saw chain tension to resolve this issue.
H
hphamAug 31, 2025
What to do if my Craftsman CMXGSAMY42N4 saw chain does not rotate?
- A
  Alex ThomasAug 31, 2025
  If the saw chain on your Craftsman Chainsaw does not rotate, check the following: * The saw chain tension might be too tight; adjust it. * The chain brake may be engaged; disengage the chain brake. * Inspect the guide bar and saw chain for damage. Replace them if necessary.
B
bcampbellSep 4, 2025
Why won't my Craftsman CMXGSAMY42N4 engine idle?
- S
  Shannon ButlerSep 4, 2025
  If your Craftsman Chainsaw engine won't idle, it could be due to: * A dirty air filter: Clean or replace the air filter. * Old or improperly mixed fuel: Drain the fuel tank and add fresh, properly-mixed fuel. * Incorrect idle speed: Adjust the idle speed.
K
Katelyn PageSep 8, 2025
What to do if Craftsman CMXGSAMY42N4 saw chain rotates, but does not cut?
- M
  Mrs. Kimberly RodgersSep 8, 2025
  If the saw chain rotates but does not cut, it may be because the saw chain is dull, so sharpen or replace it. Another reason may be that the saw chain is on backwards, so check and correct the saw chain direction.

Craftsman CMXGSAMY42N4 Specifications

General

Brand	Craftsman
Model	CMXGSAMY42N4
Category	Chainsaw
Language	English

Summary

Safety

General Safety Warning

Important Safety Instructions

Read All Instructions Before Operating

Instruction to read all safety instructions before operating the unit.

Safety Warnings for Gas Units

Specific safety warnings related to handling gasoline and fuel.

While Operating Safety Guidelines

Safety guidelines and precautions to follow while operating the unit.

Kickback Safety

Understanding Kickback

Explanation of kickback and its causes (rotational and linear).

Kickback Safety Precautions

Steps to reduce the chance of accident or injury related to kickback.

Other Safety Warnings

Essential Terms and Definitions

Kickback Explained

Definition of kickback as sudden backward/upward motion of the guide bar and chain.

Assembly

Initial Bar and Chain Oil Fill

Initial Chain Tension Adjustment

Chain Brake Testing Procedure

Procedure to test the functionality of the chain brake before use.

Oil and Fuel

Fuel Mixing Instructions

Detailed instructions on how to mix gasoline and 2-cycle oil for the engine.

Fueling Safety Precautions

Safety precautions and steps for safely fueling the chainsaw.

Starting and Stopping

Starting Instructions

Step-by-step guide on how to safely start the chainsaw engine.

Priming and Choke Operation

Priming steps involving the primer bulb and choke before starting.

Operation

Stopping Instructions

Procedures for safely stopping the chainsaw engine.

Emergency Stopping Procedure

Steps for emergency shutdown of the chainsaw.

Preparing the Work Area

Holding the Unit Securely

Instructions on how to properly grip and hold the chainsaw for safety.

Basic Cutting Procedures

Fundamental steps for making cuts with the chainsaw.

Felling Safety

Felling Procedure

Step-by-step guide for safely felling a tree.

Removing Buttress Roots

Making the Notched Undercut

Making the Felling Back Cut

Limbing Fallen Trees

Bucking Safety

Bucking Procedure

Cutting Logs Under Stress

Cutting Fully-Supported Logs

Maintenance

Maintenance Schedule Overview

Adding Bar and Chain Oil

Adjusting Oil Flow

Adjusting Chain Tension

Chain Tension Importance

Adjusting Chain Tension Safely

Warning to stop the unit and disconnect the spark plug before adjusting chain tension.

Guide Bar and Saw Chain Maintenance

Removing Guide Bar and Chain

Installing Guide Bar and Chain

Maintaining the Saw Chain

Sharpening the Saw Chain

Saw Chain Sharpness Warnings

Warnings about chain sharpness, kickback risk, and potential engine damage.

Maintaining the Guide Bar

Lubricating Guide Bar Sprocket Tip

Guide Bar and Saw Chain Replacement

Low-Kickback Chain Warning

Warning to always use a low-kickback saw chain to reduce kickback danger.

Air Filter Maintenance

Cleaning the Air Filter

Idle Speed Adjustment

Idle Speed Adjustment Warning

Spark Plug Maintenance

Cleaning and Storage

Unit Cleaning Procedures

Unit Storage Guidelines

Troubleshooting

Engine Starting Problems

Engine Running Issues

Saw Chain Operation Problems

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