Hedge Clipper 21

Operator's Manual

Exhaust Port Cleaning

Level 2.

 

 

 

Tools required:

4mm Hex Wrench, Wood or plastic scraper

 

 

Parts Required:

As needed: Heat Shield

 

 

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

 

 

 

 

 

 

(1 screw).

 

B

A

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 60-70 in•lbf (70-80 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.

carburetor adjustment

WARNING

The blades must not move at idle, otherwise serious personal injury

may result. Periodic carburetor adjustment may be necessary to assure blades do not move at idle.

If blades move, readjust carburetor according to these instructions,

or see your ECHO Dealer

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.