Husqvarna 125B - User Manual

Questions and Answers

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Emily RivasJul 26, 2025
How to fix a Husqvarna 125B Blower that will not start?
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  Keith DanielsJul 26, 2025
  If your Husqvarna Blower engine won't start, several factors could be the cause. It could be due to an engine flood, in which case you should refer to the “Starting a Warm Engine” section. Other potential reasons include an empty fuel tank (fill it with the correct fuel mixture), a faulty spark plug (install a new one), or fuel not reaching the carburetor (check for a dirty fuel filter and replace it, or inspect the fuel line for kinks or splits and repair or replace it). If compression is low, contact an authorized service dealer.
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autumn60Aug 2, 2025
What to do if Husqvarna 125B engine lacks power?
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  Jamie RobertsonAug 3, 2025
  If your Husqvarna Blower engine won't accelerate, lacks power, or dies under a load, consider these potential causes: a dirty air filter (clean or replace it), fuel not reaching the carburetor (check for a dirty fuel filter and replace it, or check for a kinked or split fuel line and repair or replace it), or a fouled spark plug (clean or replace the spark plug and re-gap it). For carburetor adjustments, carbon build-up, or low compression, contact an authorized service dealer.
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Alexis WilliamsAug 10, 2025
Why does my Husqvarna 125B smoke so much?
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  Vincent ShermanAug 10, 2025
  Excessive smoke from your Husqvarna Blower engine can be attributed to several factors. The choke might be partially on, so adjust it. The fuel mixture could be incorrect; in that case, empty the fuel tank and refill it with the correct fuel mixture. Also, a dirty air filter might be the cause, so clean or replace it. If the carburetor requires adjustment, contact an authorized service dealer.
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Daniel StantonAug 17, 2025
What causes a Husqvarna 125B Blower to run hot?
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  Lindsey MartinezAug 17, 2025
  If your Husqvarna Blower engine runs hot, it could be due to an incorrect fuel mixture; see “Fuel mixture” in the FUEL HANDLING section. Another cause might be an incorrect spark plug, so replace it with the correct one. For carburetor adjustments or carbon build-up, contact an authorized service dealer.

Summary

Introduction

Important Operating Notes

General advice and important notes before operating the blower.

Key to Symbols

Safety Instructions

Personal Safety and Equipment

Guidelines for personal protective gear and safety practices.

Fuel Safety Precautions

Warnings and instructions regarding fuel handling and safety.

Muffler Safety Information

Information about muffler heat and fire hazards.

Safe Operation Guidelines

Rules for safe operation, including bystander distance and object hazards.

Description of the Blower

Accessories for Specific Models

Details on optional vacuuming accessories for specific models.

Safety Equipment Features

Explains safety features like stop switch and muffler.

Control and Equipment Descriptions

Describes controls like throttle trigger and variable speed control.

Blower Tube and Nozzle Assembly

How to attach and adjust the blower tube and nozzle.

Fuel Cap and Air Filter Components

Location and function of the fuel cap and air filter.

Ground Wire and Inlet Cover

Function of the ground wire and access for inlet cover.

Cutters and Debris Mulching

Role of cutters in mulching debris for vacuuming.

Choke Operation for Starting

How and when to use the choke for starting the engine.

Carburetor Adjustment Guidance

Information on carburetor adjustment for optimal performance.

Fuel Handling

Fuel Mixture and Fueling

Instructions on mixing fuel and safe fueling practices.

Gasoline and Two-Stroke Oil

Specifications and types of gasoline and two-stroke oil required.

Mixing Guidelines

Recommended fuel mixture ratios and best practices.

Starting and Stopping Procedures

Starting Procedures (Cold & Warm Engine)

Step-by-step guide for starting the engine in different conditions.

Stopping the Blower

Instructions on how to safely stop the engine.

Variable Speed Control and Choke Usage

How to use speed controls and choke for operation.

Using the Blower

Blowing Debris on the Ground

Techniques for effectively blowing debris on the ground.

Fitting Blower Tube and Nozzle

Instructions for attaching and adjusting the blower tube and nozzle.

General Blowing Operations

Safety and operational tips for blowing tasks.

Standard Nozzle Usage

Details on the standard nozzle for accuracy and concentration.

High-Velocity Nozzle Use

Information on the high-velocity nozzle for wider air streams.

Vacuuming Debris (Specific Models)

Instructions for vacuuming debris with specific models.

Attaching Vacuum Collection System

Steps for attaching the collection bag and vacuum tubes.

Vacuuming Operations and Safety

Procedures and safety for vacuuming operations.

Maintenance Procedures

Maintenance Safety Guidelines

General safety rules to follow before performing maintenance.

Carburetor Maintenance

Information on carburetor function and adjustment.

Muffler Maintenance

Details on muffler care, including spark arrestor screen.

Cooling System Care

How the cooling system works and its maintenance.

Air Filter Cleaning and Replacement

Instructions for cleaning and replacing the air filter.

Spark Plug Diagnosis and Maintenance

Diagnosis and maintenance of the spark plug.

Maintenance Schedule Overview

Overview of daily, weekly, and monthly maintenance tasks.

Storage Instructions

Seasonal Storage Preparation

Steps for preparing the unit for long-term storage.

Fuel System Storage

Instructions for emptying and preparing the fuel system for storage.

Engine Storage Preparation

Procedures for preparing the engine for storage.

Other Storage Recommendations

Additional advice for storing the unit and fuel.

Troubleshooting Guide

Troubleshooting Table

Table listing common problems, causes, and remedies.

Technical Data

Engine Specifications

Detailed specifications for the engine and its components.

System and Level Data

Information on sound levels, vibration, and fuel system.

Fan Performance Metrics

Data on air velocity and volume for the fan.

Approved Accessories List

List of approved accessories and their part numbers.

User Replaceable Service Parts

Basic Service Parts

List of commonly replaced parts like filters, plugs, and caps.

Nozzles and Vacuum Tubes

Part numbers for various nozzles and vacuum tube components.

Collection Bag Components

Part numbers for the collection bag and its accessories.

Emission Control Warranty Statement

Warranty Rights and Obligations

Overview of owner's rights and responsibilities under the warranty.

Manufacturer Coverage and Owner Responsibilities

Details on manufacturer coverage and owner's maintenance duties.

Warranty Details (Commencement, Length, Period)

Information on warranty start date, duration, and period.

Covered, Diagnosis, and Not Covered

What is covered, diagnosis costs, and exclusions.

Add-on Parts and Claims Process

Policy on modified parts and how to file a warranty claim.

Warranty Service Locations

Information on where to obtain authorized warranty service.

Emission Parts Maintenance and List

Details on maintenance of emission parts and their list.

Maintenance Statement Summary

Owner's responsibility for required maintenance as per manual.