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WARNING DANGER
Catalytic mufflers operate at extremely high temperatures. Muffler
area must be kept clean. Do not perform maintenance on engine or
muffler until engine and muffler are completely cool, otherwise
serious personal injury may occur.
SPARK PLUG
Level 2.
Tools Required: Scrench (combination socket wrench and screw driver
supplied with unit) Feeler gauge, preferably a wire gauge. Soft Metal
Brush.
Parts Required: 90065 REPOWER
TM
Tune-Up Kit
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 145-155 kg/cm (125-135 in. lb.).
COOLING SYSTEMS CLEANING
Level 2.
Tools required: Cross Head Screwdriver, 4 mm Hex Wrench, Cleaning
Brush, 25 or 50 mm (1 or 2 in.) medium bristle paint brush.
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.
0.65 mm
(0.026 in.)