Stihl FS 461 C-M User Manual

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S

TIHL FS 361 C-M, 461 C-M

Owners Instruction Manual

Instruction Manual

Manual de instrucciones

WARNING

Read Instruction Manual thoroughly before use and

follow all safety precautions – improper use can cause

serious or fatal injury.

ADVERTENCIA

Antes de usar la máquina lea y siga todas las precauciones

de seguridad dadas en el manual de instrucciones – el uso

incorrecto puede causar lesiones graves o mortales.

Table of Contents

Other manuals for Stihl FS 461 C-M

Instruction Manual28 pages

Questions and Answers:

M
Michael HarrisAug 5, 2025
Why Stihl FS 461 C-M Trimmer engine does not start?
- J
  Joshua GreenAug 6, 2025
  Your Stihl Trimmer engine might not start due to several reasons. It could be that there is insufficient fuel in the fuel tank, in which case you should refuel. Another possibility is that the carburetor is too hot; if this is the case, cool down the trimmer and press the manual fuel pump bulb at least ten times before starting, even if the bulb is already filled with fuel. Also, the carburetor may be iced up, so allow the engine to warm up gradually to a temperature of about 50 °F (10 °C).
N
Nicholas SmithAug 10, 2025
Why does Stihl FS 461 C-M engine stop while idling?
- L
  Logan HuntAug 10, 2025
  The engine might stop while idling because the carburetor is iced up. To resolve this, allow the engine to warm up gradually to a temperature of about 50 °F (10 °C).
K
kimberlypruittAug 14, 2025
Why my Stihl FS 461 C-M engine does not start?
- M
  Michael Burnett DDSAug 14, 2025
  If your Stihl Trimmer engine won't start, it could be due to a couple of reasons. First, check if there's enough fuel in the tank. If not, prepare a fuel mix and refuel the trimmer. Another potential cause is that the carburetor is too hot. In this case, allow the trimmer to cool down.
K
Karen MillerAug 18, 2025
How to fix erratic idling of Stihl FS 461 C-M?
- L
  Lindsey ThompsonAug 18, 2025
  If your Stihl Trimmer is idling erratically, it might be because the carburetor is iced up. Allow the engine to warm up gradually to a temperature of about 50 °F (10 °C) to resolve this issue.
D
Dana WheelerAug 22, 2025
What to do if my Stihl FS 461 C-M Trimmer engine stops while idling?
- L
  Lori EllisAug 22, 2025
  If your Stihl Trimmer engine stops while idling, the carburetor may have iced up. Allow the trimmer to warm up to +10°C.
J
James MurphyAug 27, 2025
How to fix Stihl FS 461 C-M if the engine does not reach maximum speed?
- J
  jeffrey92Aug 27, 2025
  If your Stihl Trimmer engine isn't reaching its maximum speed, it might not be correctly tuned to the ambient conditions. To resolve this, calibrate the brushcutter. Another possible cause is that the throttle cable isn't correctly adjusted; in that case, adjust the throttle cable.
M
Michael MacdonaldAug 31, 2025
Why does my Stihl FS 461 C-M engine idle erratically?
- M
  Matthew ReeseAug 31, 2025
  If the engine of your Stihl Trimmer idles erratically, it's possible that the carburetor has iced up. Allow the trimmer to warm up to +10°C.

Stihl FS 461 C-M Specifications

General

Engine Type	2-Stroke
Handle Type	Bike Handle
M-Tronic (Electronic Engine Management)	Yes
Fuel Tank Capacity	0.75 l
Recommended Cutting Attachment	Blade or line head (depends on application)

Summary

Main Parts

Trimmer / Brushcutter

Available Cutting Attachments and Deflectors

Safety Symbols on the Products

Deflector for Mowing Heads

IMPORTANT SAFETY INSTRUCTIONS

Introduction

Warns about hazards and emphasizes proper use and safety precautions.

Operator

Details operator requirements, health, alertness, and avoiding substances.

Personal Protective Equipment

Lists required protective clothing, eye, head, and hearing protection.

Fire and Explosion Risk

Details risks of fire and explosion from sparks, flammable materials, and exhaust.

Fueling Instructions

Gives instructions and warnings for safe fueling of the trimmer/brushcutter.

Fuel Spraying or "Geysering"

Explains fuel spraying risks and causes, and how to avoid them.

Starting

Details safe starting procedures, avoiding hazards and loss of control.

Using the Trimmer / Brushcutter (above ground)

Safety for cutting above ground and with metal attachments.

Operating Instructions

Covers emergency procedures, idle adjustment, and flywheel effect.

Cutting Attachment Safety

Focuses on safety when using cutting attachments, including damage and loosening.

Kickout (Blade Thrust) with Metal Cutting Attachments

Explains kickout risk with metal cutting attachments and precautions.

Kickout (Blade Thrust) with Metal Cutting Attachments (cont.)

Provides further details and precautions for kickout with metal blades.

Using a Grass Cutting Blade

Using a Circular Saw Blade

Intended Use

Personal Protective Equipment (cont.)

Engine Cool Before Fuel Cap Removal

Warns about pressure build-up and instructs to cool the engine before opening fuel cap.

Removing the Threaded Fuel Filler Cap

Details the safe procedure for removing the fuel filler cap.

Vapor Lock

Before Operation

Lists essential checks and preparations before starting operation.

Holding and Controlling the Trimmer / Brushcutter

Explains how to properly hold and control the trimmer/brushcutter.

Working Conditions

Specifies safe operating conditions, visibility, and handling bystanders.

Toxic Exhaust Gases

Warns about toxic exhaust gases and how to mitigate risks.

Thrown Objects and Kickout

Explains risks from thrown objects and kickout, and how to prevent them.

Electrocution Risk

Warns against operating near electric wires and reliance on insulation.

Using a Mowing Head

Details safe operation with mowing heads and line length management.

Using a Brush Knife

Maintenance, Repair and Storage

Warnings and Instructions

Before Starting Work

Preparing the Trimmer / Brushcutter for Operation

Assembling the Trimmer / Brushcutter

Mounting the Handlebar and Control Handle

Mounting and Removing a Deflector or Limit Stop

Mounting and Removing a Mowing Head

Mounting and Removing a Metal Cutting Attachment

Mounting a Mowing Head

Adjusting the Trimmer / Brushcutter

Putting on and Adjusting the Full Harness

Adjusting the Handlebar

Balancing the Trimmer / Brushcutter

Mixing Fuel and Refueling the Trimmer / Brushcutter

Mixing Fuel

Refueling the Trimmer / Brushcutter

Starting the Engine

Starting the Engine

Provides warnings and steps for safely starting the engine.

Shutting Off the Engine

Shutting Off the Engine

Explains how to safely shut off the engine and the cutting attachment.

Checking the Power Tool

Testing the Controls

During Operation

Using the Trimmer / Brushcutter

General safety and operational advice for using the trimmer/brushcutter.

Adjusting the Carburetor

Adjusting the Nylon Line

Calibrating the Trimmer / Brushcutter

After Finishing Work

Preparing for Transportation or Storage

Transporting

Transporting the Trimmer / Brushcutter

Storing

Storing the Trimmer / Brushcutter

Cleaning

Cleaning the Trimmer / Brushcutter

Inspection and Maintenance

Inspection and Maintenance Chart

Inspecting and Maintaining the Trimmer / Brushcutter

Sharpening and Balancing a Metal Cutting Attachment

Troubleshooting Guide

Trimmer / Brushcutter

Lists common problems and their solutions for the trimmer/brushcutter.

Replacing the Air Filter

Adjusting the Throttle Cable

Cleaning the Spark Plug

Approved Deflector, Cutting Attachment and Harness Combinations

STIHL FS 361 C-M, 461 C-M

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