18 
spark plug
Level 2.
Tools Required:
Parts Required: REPOWERTM
IMPORTANT
Use only NGK
1.Remove spark plug and check for fouling, worn and rounded center electrode.
2.Clean the plug or replace with a new one. DO NOT sand blast to clean. Remaining sand will damage engine.
3.Adjust spark plug gap by bending outer electrode.
4.Tighten spark plug to
0.65mm (0.026 in.)
cooling system
Level 2.
Tools required: Cross Head Screwdriver, 3 & 4 mm Hex Wrench, Cleaning Brush, 25 - 50 mm (1 - 2 in.)
Parts Required: None if you are careful.
IMPORTANT
To maintain proper engine operating temperatures, cooling air must pass freely through the cylinder fin area. This flow of air carries combustion heat away from the engine.
Overheating and engine seizure can occur when:
•Air intakes are blocked, preventing cooling air from reaching the cylinder.
•Dust and grass build up on the outside of the cylinder. This build up insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cooling fins is considered “Normal Maintenance.” Any failure attributed to lack of maintenance is not warranted.
1.Remove spark plug lead.
2.Remove air cleaner cover.
3.Remove muffler cover screw and muffler cover (A).
4.Remove 2 engine cover screws and engine cover (B).
A
B 