Maintenance (continued)

10 - hour maintenance

(more frequently in dusty conditions)

1.Remove the air filter element, and wash the element in clean, neutral sol- vent or warm soapy water. Rinse the element thoroughly, and then squeeze dry before reassembly.

CAUTION!

Never operate the unit if the air filter

assembly is damaged or missing or

if the air filter element is soaked with

water!

Air filter element

Air filter cover

Clean air filter

10 - 15 hour maintenance

Adjust the spark plug electrode gap to 0.024 inch (0.6 mm). If the spark plug must be replaced, use only the spark

plug recommended on the Specifica-

tions section or an equivalent resistor type spark plug of the correct heat range.

Every 20 and 100 hours

Gearcase lubrication

CAUTION!

CAUTION!

Before removing the spark plug, clean the area around the plug to prevent dirt and debris from getting into the engine’s internal parts. .

0.6 mm

(0.024 in.)

Remove the spark plug and adjust the gap at the electrode

■■Over-lubricating may cause the gearcase to run slower than nor- mal, and may also cause leakage from excess grease.

■■Do not remove the conrods from the cutters. Conrod bearings can be lost or damaged if disturbed.

Every 20 hours

Top off gearcase grease level by using a lever-type grease gun to force 1–2 strokes of high quality lithium-based grease through the gearcase grease

fitting.

Every 100 hours

(or before long-term storage)

Remove the gearcase cover, and use solvent and a soft brush to remove all old grease from the gearcase. To refill, hand-pack the gearcase with approximately 40–50 grams of high quality lithium -based grease (50–70% of capac- ity). DO NOT OVERFILL!

Grease fitting

BOTTOM

VIEWDO NOTE REMOVE CONRODS

BOTTOM VIEW

Gearcase cover

Hex screws

Gearcase lubrication

12