4. Maintenance
F16
F17
F18
CYLINDER FINS (F16)
Dust clogging between the cylinder fins will cause overheating of the engine. Periodically check and clean the cylinder fins.
(1) Intake air cooling vent
SPARK ARRESTER (F17)
This engine is equipped with a spark arresting screen at the exhaust port. Check periodically to see if it is good condition, especially when your machine is to be used on any forest covered, brush covered, or grass covered unimproved land. In the State of California the above is required by law (Section 4442 of the California Public Resources Code)
1.Remove the muffler guard and pry off the spark arrester from the exhaust port.
2.Clean the metal screen with a wire brush. If damaged, replace with new one.
(1)Muffler guard
(2)Spark arrester
GEAR BOX
Check oil level of the gear box every 50 hours of use and change with new oil as necessary. (SAE #80 - 90)
Recommended change interval
1st: After 50 hours of use
2nd and on: Every 100 hours of use
(1)Oiling port
(2)Oil drain port
(3)Oil level
CLUTCH
Disconnect the engine from the gear box and check the clutch condition every 100 hours of use. Wipe off oil attached to the drum and shoes, and replace parts with a new one if found to be worn.
