Engine System
34
Service Manual – PBU Propane Floor Burnisher
Electrical System
Spark Plug Cleaning and Inspection
• Carefully pull the plug cap from the spark plug, and
remove the spark plug.
•
If the plug is oily or has carbon built up on it, clean the
plug using a high-flash point solvent and a wire brush
or other suitable tools.
•
If the spark plug electrodes are corroded or damaged,
or if the insulator is cracked replace the plug with a
new one. Use the standard spark plug or its equivalent
Insulator [A]
Center Electrode [B]
Plug Gap [C]
Side Electrode [D]
•
Spark Plug Gap Inspection
•
Measure the gap with a wire-type thickness gauge.
•
If the gap is not correct, carefully bend the side
electrode with a suitable tool to obtain the correct gap.
Spark Plug Gap Standard: 0.7 ~ 0.8 mm (0.028 ~
0.031 in.)
• Replace the oil filter [A] with a new one.
• Apply light film of engine oil to the seal [B].
• Install the oil filter.
Torque - Oil Filter: 11.8 N·m (1.2 kgf·m, 104
in·lb)
• Turn the filter until the seal contacts mounting
surface [C] of the engine. Then turn the filter BY
HAND (S) 3/4 turn.
• Run the engine at slow idle speed 3 minutes.
•
While running the engine, check for oil leaks around
it.
• Stop the engine and check the oil level (see Engine
Oil Level Inspection).
Figure 42 Install Oil Filter
Figure 43 Spark Plug
