Echo CS-330T sprocket, spark plug, cooling system cleaning, NOTE, IMPORTANT, IMPORTANT, IMPORTANT, Muffler Side, Starter Side

•A damaged sprocket (C) will cause premature damage or wear of saw chain.

•Clean sprocket, clutch and bar mount area before installation of bar.

•Check sprocket when you install new chain. When outer diameter of sprocket is worn 0.5mm (.020”) or more, replace it.

IMPORTANT

Some tree sap and resins are corrosive. Thoroughly wash the guide bar and sprocket areas after each use, then coat metal parts with light oil.

•Check periodically.

IMPORTANT

Use only NGK BPM-8Y spark plug (BPMR-8Y in Canada) otherwise severe engine damage may occur.

1.Remove air cleaner cover.

2.Remove spark plug lead and spark plug.

3.Gap = 0.65 mm (0.026 in)

4.Replace if electrode is worn, or if the insulator is fouled by oil or other deposits

5.Torque = 150 – 170 kgf • cm (130 – 150 in • lbf)

IMPORTANT

Do not over-torque

NOTE

See “Guide Bar and Saw Chain-Install/Remove Instructions for sprocket guard removal/replacement instructions.

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.Using a stiff bristle cleaning brush (do not use a metal brush), remove debris from cylinder fins in muffler area.

5.Assemble components in reverse order

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.

Worn : 0.5 mm