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Exhaust Port Cleaning
Level 2.
Tools required: 4 & 5 mm Hex Wrench, Wood or plastic scraper
Parts Required: As needed: Heat Shield
1. Remove spark plug lead from spark plug, and remove muffl er
cover (2 screws).
2. Place piston at top dead center. Remove muffl er (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 muffl er.
6. Tighten muffl er mounting bolts (or nuts) to 95-130 in•lbf (110-150
kgf•cm).
7. Attach spark plug lead and install muffl er cover.
8. Start engine, and warm to operating temperature.
9. Stop engine, and re-tighten mounting bolts (or nuts) to specifi ca-
tions.
A
B