Spark Plug; Cooling System - Echo SRM-225 Operator's Manual

MAINTENANCE

Spark Plug

Level 2.
Parts required: Tune-Up Kit.
Use only NGK BPM8Y spark plug otherwise severe engine
damage may occur.
1. Remove spark plug and check for fouling, worn and rounded
center electrode.
2. Clean the plug or replace with a new one. DO NOT sand
blast to clean. Remaining sand will damage engine.
3. Adjust spark plug gap by bending outer electrode.
4. Tighten spark plug to 150 - 170 kgf•cm (130 - 150 lbf•in).

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 (A).
3. Remove engine cover (B).
24
0.65 mm (0.026 in.)
B
A
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SRM-225
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