Spear & Jackson S3143PT

Questions and Answers

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webbemilyAug 9, 2025
What to do if Spear & Jackson Trimmer engine will not start?
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  Brianna OwensAug 9, 2025
  If your Spear & Jackson Trimmer engine won't start, it could be due to no spark, no fuel, or a flooded engine. Try cleaning or replacing the spark plug and resetting the spark plug gap. Push the primer bulb until it is full of fuel. If the bulb does not fill, the primary fuel delivery system is blocked. If the primer bulb fills, the engine may be flooded: set the choke lever to the FULL CHOKE position, squeeze the trigger, and pull the rope repeatedly until the engine starts and runs.
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Lindsay VazquezAug 18, 2025
Why Spear & Jackson Trimmer engine emits too much smoke?
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  Jimmy MorganAug 18, 2025
  If your Spear & Jackson Trimmer engine emits too much smoke, it's likely due to too much oil in the crankcase. Drain the lubricant and refill it with the correct amount of 4-stroke garden engine oil SAE 10W-30.
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Timothy KlineAug 29, 2025
How to fix Spear & Jackson Trimmer when it starts, runs, and accelerates but will not idle?
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  Ronald HernandezAug 29, 2025
  If your Spear & Jackson Trimmer starts, runs, and accelerates but won't idle, the idle speed screw on the carburetor likely needs adjustment. Turn the idle speed screw clockwise to increase the idle speed.

Summary

SAFETY INFORMATION

General Safety Warnings

Provides essential warnings and precautions for all users.

Work Area Safety

Personal Safety Precautions

Operating Safety Guidelines

Rules for safe engine operation and handling of the equipment.

ASSEMBLE

Unpacking and Inspection

Connecting Upper and Lower Shafts

PREPARE FOR OPERATION

Initial Engine Lubricant Oil Addition

Procedure for filling the engine with the correct lubricant oil.

Fueling the Product

Instructions and safety precautions for adding fuel.

OPERATE THE TRIMMER

Starting the Engine

Step-by-step guide to switch on and start the trimmer engine.

Primer and Choke Operation

Recoil Start Grip Usage

Instructions for using the starter grip to run the engine.

Proper Holding and Posture

Engaging the Cutting Mechanism

How to use the throttle to start cutting grass.

Cutting Techniques

Stopping the Engine

Procedure for safely shutting down the trimmer.

MAINTENANCE AND CARE

Regular Maintenance Schedule

Checking Engine Oil Level

Procedure for verifying the engine lubricant oil level before each use.

Changing Engine Lubricant Oil

Steps for draining and refilling the engine oil.

Air Filter Cleaning

TROUBLESHOOTING

Common Faults and Solutions

Guides users through diagnosing and resolving common operational issues.