Echo PB-250LN specifications Exhaust System, Cleaning Cylinder Fins, Spark Arrestor Screen

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MAINTENANCE

PB-250LN

 

 

Cleaning Cylinder Fins

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

2.Clean cylinder fins to allow cooling air to pass freely.

3.Reassemble parts in reverse order.

Exhaust System

Spark Arrestor Screen

Level 2.

Parts Required: Spark Arrestor Screen, Gasket

Carbon deposits in muffler will cause a drop in engine output and overheating. Spark arrestor screen must

be checked periodically.

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

2.Remove spark arrestor cover (A), deflector (B), plate (C), gasket (D), and spark arrestor screen (E) from muffler. Replace screen if plugged with carbon deposits.

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

3.Clean carbon deposits from muffler components.

4.Install spark arrestor screen, gasket, plate, deflector, and cover.

5.Loosely reassemble engine cover.

6.Tighten all screws securely.

7.Attach spark plug lead.

Exhaust Port Cleaning

Level 2.

E D

C

B

B

A

Parts Required: As needed: Heat Shield

1.Remove spark plug lead from spark plug, and remove engine 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.

A

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© 3/2013 ECHO Inc.

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Contents Operator’s Manual Burn HazardTable of Contents Introduction Servicing InformationManual Safety Symbols and Important Information SafetyInternational Symbols Personal Condition and Safety Equipment Vibration and Cold Repetitive Stress InjuriesEquipment EPA 2010 and Later and/or C.A.R.B. Tier Product Emission Durability Emission Compliance PeriodDescription Safety Decal Lists important safety precautions Contents Assembly Install Blower PipesOperation Remove Blower PipesFuel Requirements FuelHandling Fuel Starting Cold Engine Mixing InstructionsStarting Warm Engine Purge BulbStopping Engine Operating BlowerRead the Safety Section carefully Maintenance Intervals MaintenanceSkill Levels Air Filter Fuel FilterSpark Plug Cleaning GrillCooling System Exhaust System Cleaning Cylinder FinsExhaust Port Cleaning Spark Arrestor ScreenEngine Break-In Carburetor AdjustmentHigh Altitude Operation Start engine, run at idle for one minute Troubleshooting Engine Problem Troubleshooting ChartStorage Long Term Storage Over 30 DaysSpecifications ModelWarranty Statements OWNER’S ResponsibilityWarranty Statements PB-250LN PB-250LN