Echo SRM-225I manual Exhaust Port Cleaning

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1.Remove engine cover screws (2) and engine cover (B).

2.Place piston at Top Dead Center (TDC) to prevent carbon/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 cata- lytic element inside muffler.

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

6.Assemble components in reverse order.

F

E

D

C

Exhaust Port Cleaning

Level 2.

Tools required: Torx T27 L-Wrench, Wood or plastic scraper

Parts Required: As needed: Heat Shield

1.Remove spark plug lead from spark plug, and remove muffler cover (2 screws).

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.

BA

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Contents Grass Trimmer/Brush Cutter Introduction Safety manualTable of Contents Operators manualPersonal condition and safety equipment Safety Manual safety symbols and important informationInternational symbols Grass Trimmer /Brush Cutter Operator s ManualHand Protection Physical ConditionEye Protection Hearing ProtectionClear the Work Area Repetitive Stress InjuriesRead the Manuals Keep a Firm GripEmission Control exhaust & evaporative EquipmentEPA 2010 and Later and/or C.A.R.B. Tier Grass Trimmer /Brush Cutter Operator s Manual Description Hot Decal near muffler Shaft DecalPage Contents Assembly Plastic shield installationTo advance trimmer line Nylon line head installationNylon line replacement Remove nylon line headGrass Trimmer/Brush Cutter Operators Manual Front handle installationOperation Grass/Weed Blades Require Operation with bladesPreparing the Trimmer/Brush Cutter for Blade Use Brush/Clearing Blades RequireChoosing the Correct Blade Fuel Fuel RequirementsHandling Fuel Starting cold engine Purge BulbStarting warm engine Grass Trimmer/Brush Cutter 17 Operators ManualStopping engine Maintenance intervals MaintenanceSkill levels Air filter Fuel filterSpark plug Cooling systemExhaust system Grass Trimmer/Brush Cutter 21 Operators ManualSpark Arrestor Screen Exhaust Port Cleaning Engine Break-In Carburetor adjustmentHigh Altitude Operation Lubrication Gear HousingDrive Shaft Nylon line replacement Page Sharpening metal blades Troubleshooting Engine Problem Troubleshooting ChartLong Term Storage over 30 days StorageSpecifications Model SRM-225Warranty Statements Exceptions99922201032 12/03/09 01/2010 Page Grass Trimmer/Brush Cutter 35 Operators Manual Servicing Information parts/serial number ServiceWarranty registration Additional or replacement manuals Echo consumer product support