Echo PB-755ST - Manual (Page 22)

22
A
Cleaning Cylinder Fins
1. Remove spark plug lead from spark plug, and remove engine
cover.
2. Clean cylinder fins (A) to allow cooling air to pass freely.
3. Install engine cover and attach spark plug lead.
exhausT sysTem
Spark Arrestor Screen
Level 2.
Parts Required: Spark arrestor screen, Gaskets
WARNING
Do not perform maintenance on engine or muffler until engine and
muffler are completely cool, otherwise serious personal injury may
result.
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 lead from spark plug, and remove engine
cover.
2. Remove spark arrestor covers (A), gaskets (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 cata-
lytic element inside muffler.
3. Install spark arrestor screen and cover.
4. Install engine cover and attach spark plug lead.
A B
C