Echo SRM-225 Operator's Manual

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Echo SRM-225 Operator's Manual Manual pdf 26 page image

26 X7722279401© 6/2015 ECHO Inc.MAINTENANCE SRM-225Exhaust SystemSpark Arrestor ScreenLevel 2.1. Remove engine cover (B).2. Place piston at Top Dead Center (TDC) to preventcarbon/dirt from entering cylinder.3. Remove spark arrestor screen cover (C), gaskets (D), (E),and screen (F), from muffler body.4. Clean carbon deposits from muffler components.Note: When cleaning carbon deposit, 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.Exhaust Port CleaningLevel 2.1. Remove spark plug lead from spark plug, and removeengine cover.2. Place piston at top dead center. Remove muffler (A) andheat shield (B).3. Use a wood or plastic scraping tool to clean deposits fromcylinder exhaust port.Never use a metal tool to scrape carbon from the exhaust port. Do not scratch the cylinder or piston whencleaning 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 90 - 110 kgf•cm(80 - 95 in•lbf).7. Install engine cover and attach spark plug lead.8. Start engine, and warm to operating temperature.9. Stop engine, and re-tighten mounting bolts (or nuts) tospecifications.Parts Required: Spark Arrestor Screen, GasketParts Required: As needed: Heat ShieldFCEDB A