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1.Remove spark plug lead.

2.Remove muffler cover (A).

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

4.Remove spark arrestor screen cover (B), gasket (C), and screen

(D), from muffler body.

5.Clean carbon deposits from muffler components.

NOTE

When cleaning carbon deposit, be careful not to damage the cata- lytic 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: Heat Shield

1.Remove spark plug lead from spark plug, and remove muffler cover.

2.Place piston at top dead center. Remove muffler (A) and heat shield (B).

3.Use a wood or plastic scraping tool to clean deposits from cylinder exhaust port.

IMPORTANT

Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston when cleaning the exhaust port. Do not allow carbon particles to enter the cylinder.

4.Inspect heat shield, and replace if damaged.

5.Install heat shield and muffler.

6.Tighten muffler mounting bolts (or nuts) to 80-95 in•lbf (90-110 kgf•cm).

7.Install muffler cover and attach spark plug lead.

8.Start engine, and warm to operating temperature.

9.Stop engine, and re-tighten mounting bolts (or nuts) to specifica- tions.

A

C

DB

BA

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Echo X7502026001, X750018671, SRM-266S manual Exhaust Port Cleaning

SRM-266, SRM-266S, X750018671, X7502026001 specifications

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