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© 2/2016 ECHO Inc.
PB-250LN MAINTENANCE
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.
Cleaning Grill
1. Brush accumulated debris from
crankcase intake grill above the
fuel tank.
Cleaning Cylinder Fins
1. Remove spark plug lead from
spark plug, and remove engine
cover.
2. Clean cylinder fins to allow cooling
air to pass freely.
3. Reassemble parts in reverse
order.
Exhaust System
Spark Arrestor Screen
Level 2.
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
Parts Required: Spark Arrestor Screen, Gasket
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