Echo PB-760 LN H/T specifications Carburetor Adjustment, Exhaust Port Cleaning, Engine Break-In

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PB-760 LN H/T

MAINTENANCE

 

 

Exhaust Port Cleaning

Level 2.

Parts Required: As needed: Muffler Gasket

1.Remove spark plug lead from spark plug.

2.Remove muffler cover and engine cover.

3.Place piston at top dead center. Remove muffler (A) muffler gasket (B), and muffler insulator (C).

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

B

C

A

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.

5.Inspect muffler gasket, and replace if damaged.

6.Install muffler insulator, muffler gasket and muffler.

7.Tighten muffler mounting bolts (or nuts) to 95-130 in•lbf (110-150 kgf•cm).

8.Install engine cover and attach spark plug lead

9.Start engine, and warm to operating temperature.

10.Stop engine, and re-tighten mounting bolts (or nuts) to specifications.

11.Install muffler cover.

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 Operation

This engine has been factory adjusted to maintain satisfactory starting, emission, and durability performance up to 1,100 feet above sea level (ASL) (96.0 kPa). To maintain proper engine operation and emission compliance above 1,100 feet ASL the carburetor may need to be adjusted by an authorized ECHO service dealer.

If the engine is adjusted for operation above 1,100 feet ASL, the carburetor must be re-adjusted when operating the engine below 1,100 feet ASL, otherwise severe engine damage may result.

Level 2.

Parts Required: None

X7531125002

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© 03/2013 ECHO Inc.

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Contents Burn Hazard Operator’s ManualTable of Contents Servicing Information IntroductionSafety Manual Safety Symbols and Important InformationInternational Symbols Personal Condition and Safety Equipment Repetitive Stress Injuries Vibration and ColdEquipment Emission Control Exhaust & Evaporative EPA 2010 and Later and/or C.A.R.B. TierProduct Emission Durability Emission Compliance Period PB-760 LN H DescriptionDescription PB-760 LN T Description Contents Install Blower Pipes/Stick Handle AssemblyAssembly Install Blower PipesX7531125002 Handling Fuel OperationFuel Fuel RequirementsOperation PB-760 LN H and T Starting Cold EngineStopping Engine Starting Warm EngineOperating Blower Read the Safety Section carefullyCold Weather Operation Maintenance Maintenance IntervalsSkill Levels Fuel Filter Air FilterCleaning Grill Spark PlugCooling System Cleaning Cylinder Fins Exhaust SystemSpark Arrestor Screen High Altitude Operation Carburetor AdjustmentExhaust Port Cleaning Engine Break-InIdle Adjustment Engine Problem Troubleshooting Chart TroubleshootingLong Term Storage Over 30 Days StorageModel SpecificationsOWNER’S Responsibility Warranty StatementsWarranty Statements PB-760 LN H/T PB-760 LN H/T