Craftsman CMXGMAM1125501 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:

A
Amy MillsAug 15, 2025
Why won't my Craftsman CMXGMAM1125501 start?
- J
  John WilsonAug 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.
D
David VasquezAug 19, 2025
What to do if Craftsman CMXGMAM1125501 with electric starter fails to start?
- T
  Tina OlsonAug 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.
W
Wendy SmithAug 22, 2025
Why is my Craftsman CMXGMAM1125501 Lawn Mower engine running erratically?
- K
  Kenneth SmithAug 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.
C
chungdeannaAug 25, 2025
Why won't my Craftsman CMXGMAM1125501 self propel?
- P
  Paul TaylorAug 25, 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.
C
Cindy BrownAug 27, 2025
Why does my Craftsman CMXGMAM1125501 leave an uneven cut?
- D
  Donald SullivanAug 27, 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.
L
Lori ArmstrongAug 30, 2025
What to do if my Craftsman CMXGMAM1125501 engine overheats?
- W
  William BushAug 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.
R
Rachel WagnerSep 2, 2025
How to reduce excessive vibration in my Craftsman CMXGMAM1125501?
- K
  Kyle SteeleSep 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.
N
nathan57Sep 5, 2025
Why isn't my Craftsman Lawn Mower mulching grass properly?
- W
  whallSep 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.
M
Matthew KleinSep 8, 2025
Why does my Craftsman CMXGMAM1125501 idle poorly?
- R
  Ryan BakerSep 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.

Craftsman CMXGMAM1125501 Specifications

General

Brand	Craftsman
Model	CMXGMAM1125501
Category	Lawn Mower
Language	English

Summary

Safety Instructions

General Operation Safety

Covers reading manuals, familiarization, operator zone, and safe handling.

Critical Hazard Warnings

Highlights dangers of amputation, thrown debris, and serious injury.

Slope and Gasoline Safety

Slope Operation Safety

Guidelines for operating on slopes, including caution and angle limits.

Child Safety Precautions

Instructions to keep children away from the mower and supervise them.

Gasoline Handling Safety

Safe practices for handling gasoline to prevent fire and injury.

Slope Gauge Usage

Assembly Instructions

Unpacking and Initial Setup

Steps for unpacking the mower and identifying loose parts.

Handle Assembly Process

Detailed steps and figures for assembling the mower handles.

Adjustments Guide

Cutting Height Adjustment

How to adjust the mower's cutting height for different grass conditions.

Operation Procedures

Fueling and Battery Check

Starting and Stopping Engine

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

Safe Mowing Practices

Service and Maintenance Schedule

Service and Maintenance Procedures

Engine Maintenance and Cleaning

Troubleshooting Common Issues

Engine Starting Problems

Solutions for issues like engine failure to start or starting with electric starter.

Engine Performance Issues

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