Echo PB-620ST - Exhaust System

18
A
B
C
e x h a u s t s y s t e m
Spark Arrestor Screen
Level 2.
Tools required: Cross head screwdriver, soft metal brush
Parts Required: Spark arrestor screen, Gaskets (3)
IMPORTANT
Carbon deposits in mufer 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 or
mufer cover (5 screws).
2. Remove spark arrestor cover (A), gaskets (B) and spark arrestor
screen (C) from mufer.
3. Clean carbon deposits from mufer components.
NOTE
When cleaning carbon deposits, be careful not to damage the cata-
lytic element inside mufer.
4. Replace screen if it is cracked, plugged, or has holes burned
through.
5. Install engine cover or mufer cover and attach spark plug lead.
Cleaning Cylinder Fins
1. Disconnect spark plug lead (A), and pull lead out of upper cover
clamp and lower cover clamp.
2. Remove 5 screws and remove engine cover (B).
3. Clean cylinder ns (C) to allow cooling air to pass freely.
B
C
A