Echo SRM-2620 User Manual

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X7502342503

© 07/20 ECHO Incorporated

Operator’s

Manual

PAS-2620

Pro Attachment

Series™

The engine exhaust from this product contains chemicals

known to the State of California to cause cancer, birth defects,

or other reproductive harm.

Read and understand all provided literature before

use. Failure to do so could result in serious injury.

Note: This product complies with CAN ICES-2/NMB-2.

Table of Contents

Questions and Answers:

J
jenkinsjohnAug 7, 2025
Why does my Echo SRM-2620 start hard or not start?
- C
  crystal51Aug 7, 2025
  If your Echo Engine starts hard or doesn't start at all, there are several potential causes. The fuel strainer or fuel line might be obstructed, requiring cleaning or replacement. The fuel mixture could be too rich, in which case you should open the choke, clean or replace the air filter, or adjust the carburetor. Ensure the STOP switch is in the ON position and check for electrical problems or issues with the interlock switch. Finally, inspect the spark plug for incorrect gap, carbon buildup, fuel fouling, or defects; adjust the gap to 0.65mm (0.026 in.) or clean/replace the plug.
M
Marcus HerreraAug 23, 2025
What to do if Echo Engine runs, but dies or does not accelerate properly?
- K
  Krystal NewmanAug 23, 2025
  If your Echo Engine runs but dies or doesn't accelerate properly, the air filter might be dirty and needs cleaning or replacement. Another possibility is a dirty fuel filter, which requires filter replacement or fuel replacement. Also, the fuel vent could be plugged, which needs to be cleaned or replaced.

Echo SRM-2620 Specifications

General

Engine Displacement	25.4 cc
Engine Type	2-stroke
Carburetor	Diaphragm
Ignition System	Electronic
Fuel Mixture Ratio	50:1
Starter System	Recoil

Summary

Safety

Manual Safety Symbols and Important Information

Explanation of safety alert symbols, key words, and their meanings.

Repetitive Stress Injuries (RSI)

Information on preventing RSI/CTS by avoiding awkward wrist positions.

Equipment

Use Only ECHO Attachments

Warning about using non-approved attachments and potential injury.

Operation

Fuel Requirements and Safety

Guidelines for approved fuels, oils, and safety precautions.

Handling Fuel Safely

Detailed safety instructions for mixing, storing, and handling fuel.

Fuel Mixing Instructions

Step-by-step guide for mixing fuel and oil at 50:1 ratio.

Starting a Cold Engine

Procedure for starting the engine from a cold state.

Starting a Warm Engine

Procedure for starting the engine when it is already warm.

Stopping the Engine

Steps for safely shutting down the engine.

Maintenance

Maintenance Intervals

Table detailing maintenance procedures and required skill levels.

Air Filter Maintenance

Instructions for cleaning and inspecting the air filter.

Fuel Filter Replacement

Procedure for inspecting and replacing the fuel filter.

Spark Plug Maintenance

Instructions for checking, cleaning, and gapping the spark plug.

Cooling System Maintenance

Spark Arrestor Screen Maintenance

Carburetor Adjustment

Procedure for adjusting the carburetor for optimal performance.

Engine Break-In Procedure

Drive Shaft Upper Lubrication

Troubleshooting

Engine Starting Problems

Engine Operation Problems

Storage

Long Term Storage (Over 30 Days)