- 16 -
Maintenance Schedule
REGULAR SERVICE
PERIOD
Before
each
use
First
month
or 5 hrs.
Every 3
months
or 25 hrs.
Every 6
months
or 50 hrs.
Every
year
or 100 hrs.
Every
two
years
or 250 hrs.
ITEM
Perform at every indicated
month or operating hour
interval, whichever comes
first (1)
Engine oil
Check
O
Replace
O
O(2)
Air cleaner
Check
O
Replace
O(3)
Spark plug
Check-adjust
O
Replace
O
Flywheel
brake pad (A
types)
Check
O
Fuel tank
and filter
Clean
O
Fuel tube
Check
Every 2 years (Replace if necessary)
Valve
clearance
Check-adjust
O
Combustion
chamber
Clean
After every 200 hours
(1) For commercial use, log hours of operation to determine proper maintenance intervals.
(2) Change engine oil every 25 hours when used under heavy load or in high ambient temperatures.
(3) Service more frequently when used in dusty areas.
Trouble Shooting
ENGINE WILL NOT START
Possible Cause
Correction
1. Check fuel
Out of fuel.
Refuel
Bad fuel; engine stored without
treating or draining gasoline, of
refueled with bad gasoline
Drain the fuel tank and
carburetor. Refuel with fresh
gasoline
2. Remove and inspect spark plug
Spark plug faulty, fouled, or
improperly gapped.
Replace the spark plug
Spark plug wet with fuel (flooded
engine).
Dry and reinstall spark plug
