Echo CS-352 User Manual download pdf (Page 28)

CS-352

EXHAUST PORT CLEANING

Level 2

Parts Required: As needed: Mufer gasket

1. Remove cylinder cover and remove spark plug lead.

2. Place piston at top dead center. Remove mufer (A) and mufer

gasket (B).

3. Use a wood or plastic scraping tool to clean deposits from cylin-

der 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 mufer gasket, and replace if damaged.

5. Install mufer gasket and mufer.

6. Tighten mufer mounting bolts (or nuts) to 60-80 in • lbf (70-90

kgf • cm).

7. Install cylinder 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 speci-

cations.

SPARK ARRESTOR MUFFLER

• The spark arrestor mufer controls the exhaust

noise and prevents hot, glowing particles of

carbon from leaving the mufer.

• Make sure the spark arrestor screen is in good

repair and properly seated in the mufer.

• Certain internal combustion engines operated on

forest, brush, and/or grass-covered areas in the

states of Washington, Oregon, Idaho, California,

Minnesota, New Jersey and Maine, are required

to be equipped with a spark arrestor.

This requirement also applies to all U.S. Forest

Service lands. In some of these areas, the spark

arrestor system must be certied per USDA Forest

Service Regulation SAE J335.

Check with your local or state authorities for

specic regulations in your area. Failure to follow

these requirements is a violation of the law.

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Echo CS-352 User Manual Page 28