Echo PB-250 manual Exhaust Port Cleaning

Power Blower 19 Operator's Manual

Exhaust Port Cleaning

Level 2.

Tools required: Torx L-Wrench T27, 4 mm Hex Wrench, Wood or plastic scraper

Parts Required: As needed: Heat Shield

1.Remove spark plug lead from spark plug, and remove engine cover (6 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 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 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.Loosely reassemble engine cover with 6 screws.

8.Tighten all screws securely.

9.Attach spark plug lead.

10.Start engine, and warm to operating temperature.

11.Stop engine, and re-tighten mounting bolts (or nuts) to specifica- tions.

B A