18

1.Removemuffler cover.

2.Place piston at Top Dead Center (TDC) to prevent carbon/dirt from entering cylinder.

3.Remove spark arrestor screen cover (A), muffler gasket (B), and screen (C) from muffler body.

4.Clean carbon deposits from muffler components.

NOTE

When cleaning carbon deposits, be careful not to damage the catalytic element inside muffler.

5.Replace screen if it is cracked, plugged or has holes burned through.

6.Assemble components in reverse order.

A

B

C

Cylinder Exhaust Port

Level3.

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.

CARBURETOR ADJUSTMENT

Engine Break-In

New engines must be operated a minimum duration of two tanks of fuel break-in before carburetor adjustments can be made. During the break-in period your engine performance will increase and exhaust emissions will stabilize. Idle speed can be adjusted as required.

High Altitude Adjustment

High altitude adjustment is not required for proper operation of this engine.

Level2.

Tools required: Screwdriver,Tachometer(ECHOP/N99051130017).

Parts required: None.