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Carly SmithSep 2, 2025
What to do if Kubota ZG123S-AU engine stops suddenly?
- KKathleen FitzpatrickSep 2, 2025
If your Kubota Lawn Mower engine stops suddenly, it might be due to insufficient fuel (refuel).
What to do if Kubota ZG123S-AU engine stops suddenly?
If your Kubota Lawn Mower engine stops suddenly, it might be due to insufficient fuel (refuel).
What to do if Kubota ZG123S-AU blades do not rotate?
If the blades on your Kubota Lawn Mower do not rotate, it could be due to a broken mower belt (replace).
Why does my Kubota ZG123S-AU Lawn Mower engine knock?
If your Kubota Lawn Mower engine is knocking, it could be due to stale or low octane fuel (use specified fuel), the engine is overloaded (lower ground speed or reduce load), or the engine speed is too low (operate at the "FAST" speed).
What causes my Kubota ZG123S-AU to have an uneven cut?
An uneven cut with your Kubota Lawn Mower can be caused by several factors: the mower deck is not level (level mower deck), ground speed too fast (slow down), blades dull (have blades sharpened) or worn or damaged (replace blades), low tire inflation (add air to correct pressure), or anti-scalp rollers not adjusted correctly (adjust anti-scalp rollers).
Why is my Kubota Lawn Mower engine running rough?
A rough-running engine in your Kubota Lawn Mower can stem from several issues. It could be a defective spark plug (adjust the spark plug gap or replace it), fuel hose or fuel filter clogged or damaged (clean or replace fuel lines), improper or stale fuel (replace fuel and the fuel filter) or a clogged air cleaner (clean or replace the air cleaner).
How to fix insufficient engine power in Kubota ZG123S-AU?
If your Kubota Lawn Mower has insufficient engine power, check the fuel system for insufficient or dirty fuel. Also, a clogged fuel filter (replace the fuel filter), a clogged air cleaner (clean or replace the air cleaner), or a defective spark plug (adjust the spark plug gap or replace it) could be the cause.
What to do if Kubota ZG123S-AU blades are scalping grass?
If your Kubota Lawn Mower blades are scalping the grass, it could be because the cutting height is too low (raise the cutting height), the turning speed is too fast (reduce speed on turns), there are ridges in the terrain (change mowing pattern), the terrain is rough or uneven (adjust wheels pressure and anti-scalp rollers), the anti-scalp rollers are not adjusted correctly (adjust wheels pressure and anti-scalp rollers), or the blade(s) are bent (replace blade(s)).
Why does my Kubota ZG123S-AU Lawn Mower engine overheat?
Your Kubota Lawn Mower engine may overheat due to several reasons: the engine is overloaded (lower speed or reduce load), insufficient engine oil (replenish engine oil), a dirty engine air intake screen and cooling fins (clean them), a plugged air cleaner element (clean or replace it), the engine speed is too low (operate at the "FAST" speed), or the operating ground speed is too fast (operate at a slower ground speed).
General| Brand | Kubota |
|---|---|
| Model | ZG123S-AU |
| Category | Lawn Mower |
| Language | English |
Explains common symbols used on the machine's controls and instruments.
Introduces safety warnings and explains hazard symbols used in the manual.
Covers pre-operation checks, safety practices, and understanding the machine.
Details safe practices for starting, working, and handling children during operation.
Provides specific safety guidelines for operating the machine on inclines and slopes.
Procedures for safely stopping the machine and preparing for shutdown.
Outlines procedures and precautions for safely transporting the machine.
General guidelines for machine servicing and preparation for storage.
Instructions for safely storing the machine when not in use.
Illustrates and explains various safety labels found on the machine.
Explains how to locate and record machine, ROPS, and engine serial numbers.
Details engine model, displacement, bore, stroke, and fuel type.
Lists the machine's physical dimensions and fluid capacities.
Specifies maximum loading weights and towing capacities for safe operation.
Identifies and describes the function of various controls and instruments on the panel.
Step-by-step instructions for attaching and detaching the mower deck.
Covers the procedure for safely starting the engine, including safety checks.
Outlines checks to perform while the machine is in operation, including stopping conditions.
Explains the importance of warming up the engine and transmission oil.
Details the procedure for jump-starting a dead battery safely.
Step-by-step instructions for properly shutting down the engine.
Guidelines for operating a new machine to ensure proper break-in and longevity.
Instructions for adjusting operator position, seat belt, and lights before starting.
How to operate the mower lift pedal and parking brake lever.
Detailed instructions on using motion control levers for forward, reverse, and turning.
Procedures for safely parking the machine on level or inclined surfaces.
Instructions on using bypass rods for moving the machine when the engine is off.
Tips for best mowing results and adjusting cutting height.
Adjusting anti-scalp rollers and operating the PTO switch.
Correct tire inflation pressures for front and rear tires.
Step-by-step process for removing and installing front caster wheels.
A comprehensive schedule of maintenance tasks based on operating hours.
Details recommended lubricants, fuel types, and capacities for the machine.
General periodic maintenance checks and procedures.
Routine checks to perform before each daily operation to ensure machine condition.
Procedures for checking engine oil, fuel, and transaxle fluid levels.
Air cleaner system service including precleaner and element cleaning.
Includes engine oil change, spark plug, fuel lines, battery, and throttle cable checks.
Focuses on hydraulic hose inspection for wear or damage.
Includes transaxle oil filter replacement and hydrostatic system purging.
Covers electric clutch adjustment and combustion chamber cleaning.
Tasks like replacing air cleaner elements performed annually.
Covers engine valve clearance check and hose replacements.
Procedures for tasks like fuse replacement based on need.
How to inspect, sharpen, balance, and replace mower blades.
Steps for replacing the mower deck belt, including pulley adjustments.
Procedures for adjusting motion control levers and HST neutral.
Adjusting anti-scalp rollers and deck levels (side-to-side, front-to-rear).
Detailed chart for tightening torques based on thread size and bolt grade.
Steps for safely storing the machine and preparing it for use after storage.
Common engine problems, their causes, and corrective actions.
Addresses issues related to the battery, starter, and charging problems.
Troubleshooting guide for machine operation issues like movement and linkage problems.
Solutions for common mowing problems such as uneven cut or blade issues.
