Servicing The Spark Plug - Toro TRX-16 Original Instructions Manual

2. Remove the old filter
1. Oil filter
3. Apply a thin coat of new oil to the rubber gasket on
the replacement filter
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 3/4 turn
5. Fill the crankcase with the proper type of new oil; refer
to Servicing the Engine Oil (page
6. Run the engine for about 3 minutes, stop the engine,
and check for oil leaks around the oil filter and drain
valve.
7. Check the engine oil level and add oil if needed.
8. Wipe up any spilled oil.

Servicing the Spark Plug

Service Interval: Every 100 hours—Check the spark plugs.
Ensure that 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 and a
gapping tool/feeler gauge to check and adjust the air gap.
Install a new spark plug if necessary.
Type: NGK BPR4Es or equivalent; Air Gap: 0.75 mm
(0.030 inches)
Removing the Spark Plug
1. Lower the boom 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. Disconnect the wire from the spark plug
(Figure 37).
Figure 37
2. Adapter
(Figure 37).
(Figure 37).
27).
(Figure
1. Spark-plug wire/spark plug
4. Clean around the spark plug to prevent dirt from falling
into the engine and potentially causing damage.
Note: The heat shield may interfere on the right side;
remove it if necessary and replace it when finished.
5. Remove the spark plug and the metal washer.
Checking the Spark Plug
1. Look at the center of the spark plug
see light brown or gray on the insulator, the engine is
operating properly. A black coating on the insulator
usually means that the air cleaner is dirty.
2. If needed, clean the spark plug with a wire brush to
remove carbon deposits.
1. Center electrode insulator
2. Side electrode
Important: Always replace the spark plug when
it has worn electrodes, an oily film on it, or has
cracks in the porcelain.
38).
3. Check the gap between the center and side electrodes
(Figure 39).
Note: Bend the side electrode
not correct.
28
Figure 38
(Figure
Figure 39
3. Air gap (not to scale)
(Figure 39) if the gap is
1
39). If you