28
Changing the Engine Oil Filter
Service Interval/Specification
Replace the oil filter every 200 hours or every other oil
change.
Note: Change oil filter more frequently when operating
conditions are extremely dusty or sandy.
1. Drain the oil from the engine; refer to
Changing/Draining Oil, page 27.
2. Remove the old filter and wipe the filter adapter
(Fig. 35) gasket surface.
3. Apply a thin coat of new oil to the rubber gasket on the
replacement filter (Fig. 35).
m–1256
1
2
3
Figure 35
1.
Oil filter
2.
Gasket
3.
Adapter
4. Install the replacement oil filter to the filter adapter.
Turn the oil filter clockwise until the rubber gasket
contacts the filter adapter, then tighten the filter an
additional 1/2 turn (Fig. 35).
5. Fill the crankcase with the proper type of new oil; refer
to Changing/Draining Oil, page 27.
Servicing the Spark Plug
Service Interval/Specification
Check the spark plug(s) after every 200 operating hours.
Make sure the air gap between the center and side
electrodes is correct before installing the spark plug. Use a
spark plug wrench for removing and installing the spark
plug(s) and a gapping tool/feeler gauge to check and adjust
the air gap. Install a new spark plug(s) if necessary.
Type: Champion
RC12YC or Champion
Premium Gold
2071 (or equivalent)
Air Gap: 0.040 in. (1.00 mm)
Removing the Spark Plug
(s)
1. Disengage the power take off (PTO), set the parking
brake, and turn the engine off.
2. Pull the wire(s) off the spark plug(s) (Fig. 36). Now
clean around the spark plug(s) to prevent dirt from
falling into the engine and potentially causing damage.
3. Remove the spark plug(s) and metal washer.
2
1
m–4757
Figure 36
1.
Spark plug wire
2.
Spark plug
Checking the Spark Plug
1. Look at the center of the spark plug(s) (Fig. 37). If you
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means the air cleaner is dirty.
Important
Never clean the spark plug(s). Always
replace the spark plug(s) when it has: a black coating, worn
electrodes, an oily film, or cracks.
2. Check the gap between the center and side electrodes
(Fig. 37). Bend the side electrode (Fig. 37) if the gap is
not correct.
