Toro 51950 - User Manual

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Operator’s Manual

Trimmer/Brushcutter

Model No. 51950—250000001 & Up

Model No. 51970—250000001 & Up

Model No. 51990—250000001 & Up

Model No. 51951—250000001 & Up

Model No. 51971—250000001 & Up

Model No. 51991—250000001 & Up

Model No. 51930B—240000001 & Up

Model No. 51932B—240000001 & Up

Model No. 51934B—240000001 & Up

English (EN), French (F), and Spanish (ES)

WARNING:

To reduce the risk of injury, the user must read and understand the operator’s manual. Save this manual.

Form No. 3351-920

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Questions and Answers

S
samantha83Nov 16, 2025
Why my Toro 51950 engine will not start?
- R
  Ralph ColemanNov 16, 2025
  If your Toro Trimmer engine won't start, first ensure the switch is in the I (ON) position. If it still doesn't start, check for a spark by removing the spark plug, reattaching the cap, and laying it on the metal cylinder while pulling the starter cord. If there's no spark, try a new spark plug. Also, ensure fuel is reaching the engine by pushing the primer bulb until it's full. If the bulb doesn't fill, the fuel delivery system might be blocked. If the engine is flooded, remove the spark plug, turn the trimmer so the spark plug hole faces the ground, set the choke lever to B, and pull the starter cord 10 to 14 times to clear excess fuel. Clean and reinstall the spark plug, then try starting again with the trigger fully depressed, pulling the starter cord 3 times. If it still fails, set th...

Summary

Essential Information and Safety Guidelines

Read This Information First

Crucial preliminary instructions for safe and correct product use.

Fueling and Starting Procedures

Warnings and steps for safe fueling, starting, and addressing engine issues.

Introduction and Product Identification

Introduction and Model;Serial Numbers

Overview of the manual and space to record product identification numbers.

Safety Rules

Detailed safety guidelines for operation, environment, and personal protection.

Symbols and Labels Explained

Explanation of safety symbols and product labels for proper understanding.

Product Details and Setup Guide

Specifications and Applications

Technical details, including engine specs, cutting width, and intended uses.

Key Product Features

Overview of common, curved shaft, and brushcutter specific features.

Unpacking and Assembly

Instructions for unpacking, checking parts, and assembling the unit.

Operation Guide

Fueling and Starting the Product

Procedures for fuel handling, engine start/stop, and basic operation.

Operating the Trimmer

Techniques for trimming grass and weeds, including line advancement.

Operating the Brushcutter

Techniques for cutting brush, weeds, and vines, including cutting tips.

Maintenance and Care

Emissions Maintenance Schedule

Recommended maintenance intervals for emission control parts.

Replacing Cutting Line and Spool

Step-by-step guide to replace the trimmer line and spool.

Cleaning and Servicing Components

Procedures for cleaning the air filter, spark arrester, and fuel cap.

Spark Plug Replacement and Storage

How to replace the spark plug and prepare the product for storage.

Troubleshooting Common Issues

Problem Resolution Guide

Table of common problems with their possible causes and solutions.

Warranty and Customer Support

Limited Warranty and Service

Details on product warranty, obtaining service, and limitations.

Emission Control Warranty

Specific warranty information for the engine's emission control system.

Customer Service Contact

Contact information for assistance with service, parts, or inquiries.

Toro 51950 Specifications

General

Power Source	Corded Electric
Adjustable Handle	Yes
Line Feed System	Automatic
Type	String Trimmer
Cutting Width	14 inches
Line Diameter	0.065 inches
Motor Voltage	120 Volts
Cutting Swath	14 inches
Warranty	2 Years