Toro LX425 - User Manual

Questions and Answers:

W
William DixonAug 1, 2025
Why my Toro Lawn Mower will not mulch grass?
- J
  James BarkerAug 1, 2025
  Your Toro Lawn Mower might not mulch grass effectively due to several reasons. Ensure the engine speed is not too low by placing the throttle control in the FAST position. Avoid mowing when the grass is wet; wait until it's dry. If the grass is excessively high, mow once at a high cutting height, then mow again at the desired height, or make a narrower cutting swath. Finally, a dull blade can hinder mulching, so sharpen or replace the blade.
E
elizabeth07Aug 5, 2025
How to fix Toro Lawn Mower that idles poorly?
- M
  Mr. Michael FieldsAug 5, 2025
  If your Toro Lawn Mower idles poorly, it could be due to several reasons. The spark plugs might be fouled, faulty, or have a gap that's too wide, so replace the spark plugs and set the plug gap. Another cause could be a dirty air cleaner, so replace the air cleaner cartridge/element or clean the pre-cleaner, if equipped.
A
Anthony MaysAug 10, 2025
Why Toro LX425 Lawn Mower provides uneven cut?
- T
  Theresa PriceAug 10, 2025
  An uneven cut with your Toro Lawn Mower can be caused by a deck that is not balanced properly, so perform a side-to-side deck adjustment. A dull blade can also lead to an uneven cut, so sharpen or replace the blade. Finally, uneven tire pressure can be the culprit, so check the tire pressure in all four tires.
P
paul55Aug 14, 2025
Why Toro Lawn Mower engine runs erratic?
- B
  Brenda BaileyAug 14, 2025
  An erratic running Toro Lawn Mower engine could be caused by a few things. Make sure the unit is not running with the CHOKE applied; push the CHOKE control in (if equipped) or move the throttle control out of the CHOKE position. Check the spark plug wires and connect/tighten them if loose. A blocked fuel line or stale fuel could also be the culprit, so clean the fuel line and refill the tank with fresh gasoline. Additionally, a plugged vent in the gas cap can cause this issue; clear the vent or replace the cap if damaged. Water or dirt in the fuel system can also lead to erratic engine performance, so drain the fuel tank and refill with clean, fresh gasoline. Finally, a dirty air cleaner might be the cause, so replace the air cleaner cartridge/element or clean the pre-cleaner if equipped.
B
Bill GrayAug 18, 2025
What to do if Toro Lawn Mower engine overheats?
- S
  Susan BrownAug 19, 2025
  If your Toro Lawn Mower engine overheats, it could be due to low engine oil level, so fill the crankcase with the proper capacity and weight of oil. Another cause could be restricted airflow, so clean grass clippings and debris from around the engine’s cooling fins and blower housing.
A
April LewisAug 23, 2025
What causes excessive vibration in Toro LX425?
- T
  Timothy ScottAug 23, 2025
  Excessive vibration in your Toro Lawn Mower can be attributed to a loose or unbalanced cutting blade, so tighten the blade and spindle and balance the blade. Alternatively, a damaged or bent cutting blade can cause vibration, so replace the blade.
E
Eric JacksonOct 27, 2025
Why Toro LX425 Lawn Mower engine fails to start?
- L
  Laura DiazOct 27, 2025
  The Toro Lawn Mower engine might fail to start due to several reasons. It could be because the PTO is engaged, so place the PTO knob (or lever) in the disengaged (OFF) position. Another reason might be that the parking brake is not engaged, so engage the parking brake. Check if the spark plug wires are disconnected and connect them to the spark plugs. Ensure the throttle control lever is in the FAST position and that the choke is activated. The fuel tank might be empty or the fuel is stale, so fill the tank with clean, fresh gas. A blocked fuel line can also be the cause, so clean the fuel line or replace the fuel filter. The spark plug might be faulty, so clean, adjust the gap or replace the plug. Lastly, the engine might be flooded, so crank the engine with the throttle in the FAST posit...

Toro LX425 Specifications

General

Engine	Kohler Courage
Horsepower	20 HP
Cutting Width	42 inches
Transmission	Hydrostatic
Fuel Capacity	3 gallons
Deck Material	Steel
Turning Radius	18 inches
Blades	2
Cutting Height	1.5-4.5 inches
Deck Type	Stamped

Summary

Finding Model Number

Customer Support

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

GENERAL OPERATION

General safety guidelines for operating the lawn tractor.

SLOPE OPERATION

Safety rules and precautions for operating on slopes.

General Safety Regarding Children

Safety warnings regarding children and lawn tractor operation.

TOWING

Safe procedures and warnings for towing with the tractor.

Service Safety

Safety guidelines for gasoline handling and general service.

SAFETY SYMBOLS

Explanation of safety symbols and pictographs used in the manual.

SECTION 2: SAFETY AND INSTRUCTIONAL LABELS

SECTION 3: SLOPE GAUGE

DANGER: Slope Operation

Critical warning about operating on slopes exceeding 15 degrees.

Children Safety on Slopes

Children safety advice related to operating on slopes.

SECTION 4: TRACTOR SET-UP

Attaching The Steering Wheel

Step-by-step instructions for attaching the steering wheel.

Attaching the Battery Cables

Instructions for connecting the tractor's battery cables.

Tire Pressure

Information and warnings about tire inflation pressure.

Attaching The Seat

Steps to attach and adjust the tractor seat.

Shipping Brace Removal

Procedure for removing the shipping brace before operation.

Setting the Gauge Wheels

Adjusting deck gauge wheels for proper cutting deck height.

Gas and Oil Fill-up

Instructions and warnings for fueling the tractor.

SECTION 5: KNOW YOUR LAWN TRACTOR

Controls Overview

Identification and location of major tractor controls and indicators.

Throttle; Choke Control

Operation of the throttle and choke control lever.

Brake Pedal

Function and operation of the brake pedal.

Shift Lever

Operation and precautions for the shift lever.

Drive Pedal

Operation of the drive pedal for forward and reverse movement.

Deck Lift Lever

How to operate the deck lift lever for cutting height.

Systems Indicator Monitor; Hour Meter

Explanation of the tractor's indicator monitor and LCD display.

PTO (Blade Engage) Lever

Operation of the PTO (Blade Engage) lever.

Cruise Control Lever

Instructions for engaging and using the cruise control.

Parking Brake Lever

How to engage and disengage the parking brake lever.

SECTION 6: OPERATING YOUR LAWN TRACTOR

Safety Interlock System

Explanation and testing of the tractor's safety interlock system.

Reverse Caution Mode

Instructions and warnings for operating in reverse caution mode.

Starting the Engine

Step-by-step guide to starting the tractor's engine.

Stopping the Engine

Procedure for safely stopping the tractor's engine.

Driving The Tractor

Basic instructions for driving the tractor.

Driving On Slopes

Safety guidelines for driving and mowing on slopes.

Setting The Cruise Control

How to set and disengage the tractor's cruise control.

Engaging the Parking Brake

How to engage and disengage the parking brake.

Engaging the Blades

Steps to engage the PTO and cutting blades.

Mowing

Tips and warnings for effective and safe mowing.

SECTION 7: MAKING ADJUSTMENTS

Seat Adjustment

Instructions on how to adjust the tractor seat position.

Leveling the Deck

Procedure for adjusting the front-to-rear deck level.

Side to Side

Adjusting the cutting deck for side-to-side balance.

Steering Adjustment

Adjusting the steering drag links for proper alignment.

SECTION 8: MAINTAINING YOUR LAWN TRACTOR

Engine

General engine maintenance information and oil checks.

Changing Engine Oil

Step-by-step guide for changing the engine oil.

Fuel Filter

Information on inspecting and replacing the fuel filter.

Cleaning the Engine and Deck

How to clean the engine and deck from debris.

Deck Wash System

Instructions for using the deck wash system for cleaning.

Lubrication

Lubrication points and schedule for the tractor.

Pivot Points & Linkage

Lubricating pivot points on the drive system and linkage.

Front Wheels

Lubricating front wheel axles with a grease gun.

Rear Wheels

Lubricating rear wheel axles and rims.

SECTION 9: SERVICE

Tires

Information and warnings about tire pressure.

Fuse

Location and function of the tractor's fuse.

Cutting Blades

Safety warnings and procedures for removing cutting blades.

Battery

Information on battery maintenance, cleaning, and handling.

Jump Starting

Instructions and warnings for jump-starting the tractor battery.

Charging

Procedure and safety precautions for charging the tractor battery.

Cutting Deck Removal

Steps for removing the cutting deck from the tractor.

Changing the Upper Deck Belt

Procedure for replacing the upper deck belt.

SECTION 10: OFF-SEASON STORAGE

SECTION 11: MAINTENANCE CHART

SECTION 13: SPECIFICATIONS*

ELECTRIC SCHEMATIC

The Toro Company MANUFACTURERS LIMITED WARRANTY FOR LAWN & GARDEN TRACTORS

Related product manuals

Toro LX420 13AX60RG744

Toro LX466 13AT61RH044

36 pages

Toro LX466 13AT61RH048

36 pages

Toro LX425 - User Manual

Table of Contents

Questions and Answers:

Toro LX425 Specifications

Summary

Finding Model Number

Customer Support

SECTION 1: IMPORTANT SAFE OPERATION PRACTICES

GENERAL OPERATION

SLOPE OPERATION

General Safety Regarding Children

TOWING

Service Safety

SAFETY SYMBOLS

SECTION 2: SAFETY AND INSTRUCTIONAL LABELS

SECTION 3: SLOPE GAUGE

DANGER: Slope Operation

Children Safety on Slopes

SECTION 4: TRACTOR SET-UP

Attaching The Steering Wheel

Attaching the Battery Cables

Tire Pressure

Attaching The Seat

Shipping Brace Removal

Setting the Gauge Wheels

Gas and Oil Fill-up

SECTION 5: KNOW YOUR LAWN TRACTOR

Controls Overview

Throttle; Choke Control

Brake Pedal

Shift Lever

Drive Pedal

Deck Lift Lever

Systems Indicator Monitor; Hour Meter

PTO (Blade Engage) Lever

Cruise Control Lever

Parking Brake Lever

SECTION 6: OPERATING YOUR LAWN TRACTOR

Safety Interlock System

Reverse Caution Mode

Starting the Engine

Stopping the Engine

Driving The Tractor

Driving On Slopes

Setting The Cruise Control

Engaging the Parking Brake

Engaging the Blades

Mowing

SECTION 7: MAKING ADJUSTMENTS

Seat Adjustment

Leveling the Deck

Side to Side

Steering Adjustment

SECTION 8: MAINTAINING YOUR LAWN TRACTOR

Engine

Changing Engine Oil

Fuel Filter

Cleaning the Engine and Deck

Deck Wash System

Lubrication

Pivot Points & Linkage

Front Wheels

Rear Wheels

SECTION 9: SERVICE

Tires

Fuse

Cutting Blades

Battery

Jump Starting

Charging

Cutting Deck Removal

Changing the Upper Deck Belt

SECTION 10: OFF-SEASON STORAGE

SECTION 11: MAINTENANCE CHART

SECTION 13: SPECIFICATIONS*

ELECTRIC SCHEMATIC

The Toro Company MANUFACTURERS LIMITED WARRANTY FOR LAWN & GARDEN TRACTORS

Related product manuals