g026971
G012845
3/4
2
3
4
5
6
1
Figure 47
Note:
Ensure the oil-filter gasket touches the engine,
and then an extra 3/4 turn is completed.
4.
Fill the crankcase with the proper type of new oil; refer
to
Changing the Engine Oil (page 34)
.
Servicing the Spark Plug
Service Interval:
Every 100 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 for all Engines:
NGK
®
BPR4ES or equivalent
Air Gap:
0.75 mm (0.03 inch)
Removing the Spark Plug
1.
Disengage the PTO, move the motion-control levers to
the neutral-locked position, and set the parking brake.
2.
Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3.
Remove the spark plug as shown in
.
g026971
Figure 48
Checking the Spark Plug
Important:
Do not clean the spark plug(s). Always
replace the spark plug(s) when it has a black coating,
worn electrodes, an oily film, or cracks.
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.
Set the gap to 0.75 mm (0.03 inch).
G008794
1
2
Figure 49
36
Summary of Contents for GrandStand 74574
Page 65: ...g026979 Electrical Schematic Rev A 65 ...
Page 66: ...Notes 66 ...
Page 67: ...Notes 67 ...
