Use and Care Manual

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© 6/2016 ECHO Inc.
SRM-266 MAINTENANCE
3. Adjust spark plug gap by bending outer electrode.
4. Tighten spark plug to 150–170 kgf • cm (130–150 in • lbf).
Cooling System
Level 2
To maintain proper engine operating temperatures, cooling air must pass
freely through the cylinder fin area. This flow of air carries combustion
heat away from the engine.
Overheating and engine seizure can
occur when:
Air intakes are blocked, preventing
cooling air from reaching the
cylinder.
Dust and grass build up on the
outside of the cylinder. This build
up insulates the engine and
prevents the heat from leaving.
Removal of cooling passage
blockages or cleaning of cooling fins
is considered “Normal Maintenance.
Any failure attributed to lack of maintenance is not warranted.
1. Remove spark plug lead.
2. Remove air cleaner cover.
3. Remove muffler cover (A).
4. Remove engine cover (B).
Parts Required: None if you are careful.
A
B