Exhaust Port Cleaning - Echo CS-330T Instruction Manual

Starter Side
1. Remove air filter cover and remove spark plug lead.
2. Remove plastic plug in side handle mount (D), and remove
side handle mounting screw.
3. Remove four starter cover screws and remove starter cover.
4. Using a stiff bristle cleaning brush (do not use a metal
brush), remove debris from flywheel and ignition coil area.
5. Assemble components in reverse order.
MUFFLER SPARK ARRESTOR
IMPORTANT
Carbon deposits in muffler will cause a drop in engine output
and overheating. Spark arrestor screen must be checked
periodically.
1. Remove air filter cover and remove spark plug lead.
2. Remove two guide bar nuts and remove sprocket guard.
3. Remove three muffler cover screws and remove muffler
cover.
4. Remove spark arrestor screen cover, gaskets, and screen
from muffler body.
5. Clean carbon deposits from muffler components.
NOTE
When cleaning carbon deposit, be careful not to damage the
catalytic element inside muffler.
6. Replace screen if it is cracked, plugged, or has holes
burned through.
7. Assemble components in reverse order.

Exhaust Port Cleaning

Level 2.
Parts Required: As needed: Muffler Gasket
1. Remove air filter cover and remove spark plug lead.
2. Loosen chain tension, release chain brake, and remove two guide
bar nuts, clutch cover, guide bar, and chain.
3. Remove muffler cover screws and remove muffler cover. (See
"Guide Bar and Saw Chain – Install/Remove" in Instruction Manual
for detailed disassembly instructions.)
NOTE
Some units may have a metal shim (A) between the muffler cover
and clutch cover. Make sure shim is installed properly when reas-
sembling parts.
4. Place piston at top dead center.
20
D
A