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Ryobi RY252CS - User Manual

Ryobi RY252CS
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Curved Shaft
RY252CS
Straight Shaft
RY253SS
OPERATOR’S MANUAL
MANUEL D’UTILISATION
MANUAL DEL OPERADOR
25CC 2-CYCLE
STRING TRIMMERS
TAILLE-BORDURES À LIGNE
2 TEMPS DE 25 CC
RECORTADORAS DE HILO
DE DOS TIMPOS 25 CC
Le taille-bordures à ligne a été conçue et fabriquée conformément
à nos strictes normes de fiabilité, simplicité d’emploi et sécurité
d’utilisation. Correctement entretenue, elle vous donnera des
années de fonctionnement robuste et sans problème.
AVERTISSEMENT : Pour réduire les risques de
blessures, l’utilisateur doit lire et veiller à bien comprendre le
manuel d’utilisation avant d’employer ce produit.
Su recortadoras de hilo ha sido diseñada y fabricada de conformidad
con las estrictas normas para brindar fiabilidad, facilidad de uso
y seguridad para el operador. Con el debido cuidado, le brindará
muchos años de sólido y eficiente funcionamiento.
ADVERTENCIA: Para reducir el riesgo de lesiones,
el usuario debe leer y comprender el manual del operador antes
de usar este producto.
CONSERVER CE MANUEL POUR
FUTURE RÉFÉRENCE
GUARDE ESTE MANUAL PARA
FUTURAS CONSULTAS
SAVE THIS MANUAL FOR FUTURE REFERENCE
Your string trimmer has been engineered and manufactured to our high standard for dependability, ease of operation, and
operator safety. When properly cared for, it will give you years of rugged, trouble-free performance.
WARNING: To reduce the risk of injury, the user must read and understand the operator’s manual before using
this product.
NOTICE AVIS AVISO
Do not use E15 or E85 fuel in this product. It is a violation of federal law and will damage the unit and
void your warranty. Only use unleaded gasoline containing up to 10% ethanol.
Ne pas utiliser d’essence E15 ou E85 dans ce produit. Une telle utilisation représente une violation de
la loi fédérale et endommagera l’appareil et annulera la garantie. Utiliser seulement de l’essence sans plomb ne contenant
pas plus de 10 % d’éthanol.
No utilice combustibles E15 o E85 con este producto. Esto constituye una violación a la ley federal, dañará la unidad y anulará
la garantía. Use únicamente gasolina sin plomo con un contenido de hasta 10 % de etanol.

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Questions and Answers

  • J
    John NguyenAug 20, 2025
    What to do if my Ryobi Trimmer engine will not start?
    • L
      Lisa PetersonAug 20, 2025
      If your Ryobi Trimmer engine won't start, there could be several reasons. It might be due to no spark, no fuel, or the engine being flooded. If there is no spark or fuel, clean or replace the spark plug and reset the spark plug gap. Push the primer bulb until it is full of fuel. If the primer bulb fills, but the engine is flooded, set the choke lever to the FULL CHOKE position. Squeeze the trigger and pull the starter grip and rope repeatedly until the engine starts and runs. Depending on how flooded the engine is, this may require numerous pulls of the rope.
  • K
    Kayla DukeAug 22, 2025
    Why Ryobi Trimmer engine does not reach full speed and emits excessive smoke?
    • K
      Kenneth Cox DVMAug 23, 2025
      If your Ryobi Trimmer engine doesn't reach full speed and emits excessive smoke: * **Incorrect lubricant/fuel mixture:** Ensure you are using fresh fuel and the correct 2-cycle lubricant mix (50:1). * **Air filter screen is dirty:** Clean the air filter screen. * **Spark plug fouled:** Clean or replace the spark plug and reset the spark plug gap.
  • D
    Dr. Laura Wells DDSAug 25, 2025
    What to do if the line will not advance on Ryobi RY252CS?
    • M
      Melissa HudsonAug 26, 2025
      If the line on your Ryobi Trimmer won't advance, consider the following: * **Line is welded to itself:** Lubricate the line with silicone spray. * **Not enough line on spool:** Install more line. * **Line is tangled on spool:** Pull the lines while alternately pressing down on and releasing the spool retainer. Remove the line from the spool and rewind it. * **Engine speed is too slow:** Advance the line at full throttle.
  • S
    Steven SmithAug 28, 2025
    Why Ryobi RY252CS Trimmer starts, runs, and accelerates but will not idle?
    • B
      Bryan PetersAug 28, 2025
      If your Ryobi Trimmer starts, runs, and accelerates but will not idle, the idle speed screw on the carburetor likely needs adjustment. Turn the idle speed screw clockwise to increase the idle speed.
  • S
    Stephen JenkinsAug 30, 2025
    Why does my Ryobi Trimmer engine not reach full speed and emit excessive smoke?
    • K
      kristina45Aug 30, 2025
      If your Ryobi Trimmer engine doesn't reach full speed and emits excessive smoke, it could be due to several factors. You might have an incorrect lubricant/fuel mixture, so ensure you are using fresh fuel and the correct 2-cycle lubricant mix (50:1). Another cause could be a dirty air filter screen, which you should clean. The spark plug could also be fouled, so clean or replace it and reset the spark plug gap.
  • M
    Mary GarnerSep 1, 2025
    What to do if the line will not advance on my Ryobi Trimmer?
    • A
      Ashley AyersSep 2, 2025
      If the line on your Ryobi Trimmer will not advance, it could be because the line is welded to itself, in which case you should lubricate the line with silicone spray. It may also be that there is not enough line on the spool, so install more line. If the line is worn too short, pull the lines while alternately pressing down on and releasing the spool retainer. Also, make sure that the engine speed is sufficient; advance the line at full throttle.
  • B
    Brent JacksonSep 4, 2025
    Why grass wraps around drive shaft housing and string head of Ryobi RY252CS Trimmer?
    • N
      Nathan BowmanSep 4, 2025
      If grass wraps around the drive shaft housing and string head of your Ryobi Trimmer: * **Cutting tall grass at ground level:** Cut tall grass from the top down to prevent wrapping. * **Operating trimmer at part throttle:** Operate the trimmer at full throttle.
  • S
    Sierra WrightSep 7, 2025
    How to fix Ryobi RY252CS Trimmer spool retainer hard to turn?
    • N
      Nathaniel GrossSep 7, 2025
      If the spool retainer on your Ryobi Trimmer is hard to turn, it may be because the screw threads are dirty or damaged. Clean the threads and lubricate them with grease. If there's no improvement, replace the spool retainer.
  • L
    Larry BurkeSep 9, 2025
    How to fix a Ryobi RY252CS Trimmer that starts, runs, and accelerates but will not idle?
    • B
      Bonnie WilliamsSep 9, 2025
      If your Ryobi Trimmer starts, runs, and accelerates but will not idle, the idle speed screw on the carburetor likely needs adjustment. Turn the idle speed screw clockwise to increase the idle speed.
  • W
    Wesley BrownSep 12, 2025
    Why does grass wrap around the drive shaft housing and string head of my Ryobi RY252CS Trimmer?
    • R
      Rebecca DavisSep 12, 2025
      If grass wraps around the drive shaft housing and string head of your Ryobi Trimmer, it could be because you are cutting tall grass at ground level. To prevent this, cut tall grass from the top down. Also, ensure you are operating the trimmer at full throttle, not part throttle.

Summary

Ryobi String Trimmer Operators Manual

Important Safety Warning

Crucial safety instruction: read and understand the manual before using the product to reduce injury risk.

Introduction and Safety Guidelines

Introduction

Overview of the product's features, designed for pleasant and enjoyable use, prioritizing safety, performance, and dependability.

General Safety Rules

Comprehensive general safety precautions for operating the string trimmer, covering personal protection and work area.

Specific Safety Rules

Specific safety instructions unique to the string trimmer, including handling, maintenance, and usage constraints.

Understanding Symbols

Explanation of signal words and symbols used in the manual to denote hazard levels and safe operation practices.

Features, Assembly, and Operation

Product Features

Details product specifications, ergonomic design, grass deflector, Reel-Easy Tap Advance, and top-mounted engine.

Assembly Instructions

Guide for unpacking, inspecting, and assembling the string trimmer, including attaching various components.

Fueling and Refueling

Safe procedures for fueling the string trimmer, including fuel mixture ratios and tank filling guidelines.

Starting and Operating

Instructions on how to start, stop, and operate the string trimmer safely, including proper hand placement and cutting techniques.

Cutting Tips

Advice on optimal cutting techniques, line advancement, and use of the grass deflector cut-off blade for efficient trimming.

Maintenance and Troubleshooting Guide

Maintenance Procedures

Detailed steps for spool replacement, line replacement, and general cleaning of components.

Component Cleaning and Care

Instructions for cleaning the exhaust, air filter, and checking fuel system components.

High Altitude Engine Operation

Guidance on re-configuring the engine for optimal performance and preventing damage at altitudes above 2000 feet.

Troubleshooting Common Issues

Identifies common problems with the string trimmer and provides step-by-step solutions for each.

Warranty and Regulatory Information

Limited Warranty Statement

Details the warranty coverage, limitations, and procedures for obtaining warranty service.

California Proposition 65 Warnings

Notifies users about potential chemical exposure risks associated with the product, as required by California law.

Ryobi RY252CS Specifications

General IconGeneral
Engine Type2-Cycle
Displacement25cc
Weight12.3 lbs
Line Diameter0.095 inches
Power SourceGas
Engine Displacement25cc
Shaft TypeStraight
Handle TypeLoop Handle
Cutting Width18 inches
Starting SystemRecoil
Cutting Swath18 in

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