Echo PB-403T - Manual (Page 21)

21
P
OWER
B
LOWER
O
PERATOR
'
S
M
ANUAL
Cleaning Cylinder Fins
1. Disconnect spark plug lead from spark plug.
2. Remove engine cover (five screws), pull cover away from engine.
3. Clean cylinder fins (A) to allow cooling air to pass freely.
4. Replace cover and tighten screws.
5. Connect spark plug lead.
EXHAUST SYSTEM
Spark Arrestor Screen
Level 2.
Tools required: Cross Head Screwdriver
Parts Required: Spark arrestor screen, Gasket
IMPORTANT
Carbon deposits in muffler will cause a drop in engine output and
overheating. Spark arrestor screen must be checked periodically.
1. Remove spark plug and engine cover (five screws).
2. Remove spark arrestor cover (A), gasket (B) and spark arrestor
screen (C) from muffler. Replace screen if plugged with carbon
deposits.
NOTE
When cleaning carbon deposit, be careful not to damage the
catalytic element inside muffler.
3. Install spark arrestor screen, gaskets, and cover.
4. Install spark plug and engine cover.
Cylinder Exhaust Port
Level 3.
IMPORTANT
The cylinder exhaust port must be inspected and cleaned of excess
carbon every 3 months or 90 hours of operation in order to maintain
this engine within the emissions durability period. ECHO strongly
recommends that you return your unit to your ECHO dealer for this
important maintenance service.
A
B
C
A