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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).
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-
derexhaust 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 80-95 in•lbf
(90-110 kgf•cm).
7. Attach spark plug lead.
8. Install muffler cover.
9. Start engine, and warm to operating temperature.
10. Stop engine, and re-tighten mounting bolts (or nuts) to specifica-
tions.
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