Craftsman CMXGMAM2703842 User Manual

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WARNING!

Before using this equipment, read the manual and follow all safety rules and operating instructions. SAVE THESE INSTRUCTIONS.

Form No. 769-19555A

(December 11, 2018)

INSTRUCTION MANUAL | MANUAL DE INSTRUCTIONES

FRONT WHEEL DRIVE MOWER

Model Nos. CMXGMAM1125501

CMXGMAM2703841

CMXGMAM1125502

CMXGMAM1125503

CMXGMAM1125504

CMXGMAM2703842

CMXGMAM7435274

IF YOU HAVE QUESTIONS OR COMMENTS, CONTACT US.

SI TIENE DUDAS O COMENTARIOS, CONTÁCTENOS.

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

NOTE: This Operator’s Manual covers several models. Features may vary by model. Not all features in this manual are applicable to all models and the model depicted may differ

from yours.

TABLE OF CONTENTS

Safety Instructions ............................................... Pages 2-5

Slope Guide ..........................................................Page 6

Unpacking ...........................................................Page 7

Assembly .........................................................Pages 7-9

Adjustments ........................................................Page 10

Operation .......................................................Pages 11-14

Service and Maintenance ........................................Pages 15-17

Off-Season Storage ..................................................Page 18

Troubleshooting ................................................. Page 19-20

Español ...........................................................Page 21

Questions and Answers:

K
kevinkaufmanAug 16, 2025
Why won't my Craftsman CMXGMAM2703842 start?
- K
  kingsusanAug 16, 2025
  Several factors could prevent your Craftsman Lawn Mower from starting. Ensure the blade control is engaged and the spark plug boot is connected. Check if the fuel tank is empty or contains stale fuel; if so, refill with fresh gasoline. If your mower has a primer, prime the engine as instructed. Inspect the spark plug for faults and clean, adjust the gap, or replace if necessary. If the engine is flooded, wait a few minutes before restarting. Finally, a blocked fuel line could be the issue, in which case you should contact your Parts & Repair Center to have it cleaned.
N
nathanmooreAug 19, 2025
What to do if Craftsman CMXGMAM2703842 with electric starter fails to start?
- M
  Margaret RichardsAug 19, 2025
  If your Craftsman electric start lawn mower isn't starting, make sure the Electric Starter Push Key is fully inserted until it snaps into place. Also, ensure the battery is charged by referring to the Battery Charger Instructional Manual. Finally, if the circuit breaker tripped, stop the engine, remove the Electric Starter Push Key, and disconnect the spark plug boot. Check for and carefully remove any grass or debris obstructing the blade. Reattach the spark plug boot and reinsert the Electric Starter Push Key. Wait one minute for the circuit breaker to automatically reset before trying to start again.
S
Stephen BakerAug 22, 2025
Why is my Craftsman CMXGMAM2703842 engine running erratically?
- E
  Elizabeth WadeAug 22, 2025
  An erratic running engine in your Craftsman Lawn Mower can stem from several causes. First, check that the spark plug boot is securely connected and tightened. Stale fuel can also cause this issue, so replace it with fresh gasoline. Ensure the vent in the gas cap isn't plugged. Water or dirt in the fuel system might be the culprit; run the engine until it stops from lack of fuel, then refill with fresh fuel. If the air cleaner is dirty, refer to the Engine Manual for Air Cleaner Maintenance instructions. Lastly, a blocked fuel line could be the problem, requiring professional cleaning.
J
jacobsloganAug 25, 2025
Why won't my Craftsman Lawn Mower self propel?
- J
  jesserobertsAug 26, 2025
  If your Craftsman Lawn Mower isn't self-propelling, check the belt for proper pulley installation and movement. Clear any debris clogging the drive operation by stopping the engine and disconnecting the spark plug boot before cleaning. Inspect the belt for damage or wear, and consider having it replaced. Also, the drive control might be out of adjustment, refer to page 10 in the Assembly & Set-up section for adjustment instructions.
B
Barry AndersonAug 28, 2025
Why does my Craftsman Lawn Mower leave an uneven cut?
- C
  Connie FreemanAug 28, 2025
  An uneven cut with your Craftsman Lawn Mower can be caused by a few things. Make sure the wheels are positioned correctly by adjusting the cutting height lever on the right front and right rear wheels to the same position. Also, a dull blade can contribute to an uneven cut, so sharpen or replace it.
A
autumnmoralesAug 31, 2025
What to do if my Craftsman CMXGMAM2703842 Lawn Mower engine overheats?
- E
  erik80Aug 31, 2025
  If your Craftsman Lawn Mower engine is overheating, start by checking the engine oil level and fill the crankcase with the proper oil if it's low. Also, ensure that there are no restrictions to air flow around the engine by cleaning the area around and on top of it.
N
Nathan LambSep 3, 2025
How to reduce excessive vibration in my Craftsman CMXGMAM2703842 Lawn Mower?
- T
  Tabitha MillerSep 3, 2025
  Excessive vibration in your Craftsman Lawn Mower could be due to a loose or unbalanced cutting blade. Try tightening the blade and adapter, and balance the blade. If the cutting blade is bent, it will need to be replaced.
H
hhebertSep 6, 2025
Why isn't my Craftsman CMXGMAM2703842 Lawn Mower mulching grass properly?
- K
  Kenneth RamirezSep 6, 2025
  If your Craftsman Lawn Mower isn't mulching grass effectively, it could be due to wet grass; avoid mowing in wet conditions and wait for the grass to dry. Excessively high grass can also hinder mulching, so mow once at a high cutting height, then mow again at the desired height or make a narrower cutting path. Finally, a dull blade will impact mulching performance, so sharpen or replace it.
D
Dr. Rebecca ThompsonSep 9, 2025
Why does my Craftsman CMXGMAM2703842 idle poorly?
- R
  Rebecca Evans DDSSep 9, 2025
  Poor idling in your Craftsman Lawn Mower can be attributed to a spark plug that is fouled, faulty, or has a gap that is too wide; reset the gap or replace the spark plug. Another potential cause is a dirty air cleaner, in which case you should refer to the Engine Manual for Air Cleaner Maintenance.
C
Christine KrauseSep 12, 2025
What causes occasional skips in my Craftsman CMXGMAM2703842?
- S
  Stephen GarciaSep 12, 2025
  Occasional skipping or hesitation in your Craftsman Lawn Mower could be due to a spark plug gap that is too close. Adjust the gap, referring to the Spark Plug Maintenance section in the Engine Manual.

Craftsman CMXGMAM2703842 Specifications

General

Engine Displacement	163cc
Cutting Height Adjustment	Single lever
Drive Type	Self-propelled
Starter Type	Recoil
Mulching Capability	Yes
Rear Bagging Capability	Yes
Side Discharge Capability	Yes
Engine Brand	Briggs & Stratton
Number of Cutting Positions	6
Front Wheel Size	8 inches
Rear Wheel Size	11 inches
Speed Settings	Variable
Warranty	2-year limited
Cutting Width	21 inches
Drive System	Rear Wheel Drive

Summary

Safety Instructions

General Operation Safety

Safety Topics

Slope Operation Safety

Guidelines for safe mowing on inclines, including what to do and not to do.

Children Safety Precautions

Safe Gasoline Handling

Precautions for handling gasoline to prevent fire and explosion hazards.

Assembly Instructions

Handle Setup

Steps for assembling and securing the mower handles.

Attaching Grass Catcher

Adjustments

Cutting Height Adjustment

How to adjust the cutting height for different lawn conditions.

Handle Pitch and Drive Control

Operation Overview

Blade and Drive Control Operation

How to operate the blade control and various drive control systems.

Other Operational Features

Starting and Stopping Procedures

Procedures for safely starting and stopping the mower's engine.

Using Grass Catcher and Mulcher

Service and Maintenance

Maintenance Schedule

Chart outlining recommended service intervals and tasks.

General Maintenance Tips

Engine and Deck Cleaning

Blade and Belt Care

Off-Season Storage

Preparing for Storage

Battery Storage Recommendations

Troubleshooting Guide

Engine Starting and Running Issues

Solutions for common problems like engine not starting or running erratically.

Vibration, Mulching, and Drive Problems

Troubleshooting guide for vibration, mulching, uneven cuts, and drive issues.

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