Spark Plug; Transaxle Fluid - Toro 71233 Operator's Manual

3. Install the air cleaner cover and knob (Fig. 22). Tighten
the knob snugly.
4. Close the hood.

Spark Plug

Service Interval/Specification
Install a new spark plug after every 100 operating hours.
Check the spark plug after every 25 operating hours. Make
sure 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.
Type: Champion RC12YC (or equivalent)
Air Gap: 0.030 in. (0.762 mm)
Removing the Spark Plug
1. Disengage the PTO, set the parking brake, stop the
engine, and remove the ignition key.
2. Open the hood.
3. Pull the wire off of the spark plug (Fig. 27). Clean
around the spark plug to prevent dirt from falling into
the engine and potentially causing damage.
4. Remove the spark plug and metal washer.
1
Figure 27
1. Spark plug wire
Checking the Spark Plug
1. Look at the center of the spark plug (Fig. 28). 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
the spark plug when it has a black coating, worn electrodes,
an oily film, or cracks.
2. Check the gap between the center and side electrodes
(Fig. 28). Bend the side electrode (Fig. 28) if the gap is
not correct.
2
1. Center electrode insulator
2. Side electrode
Installing the Spark Plug
1. Install the spark plug and metal washer. Make sure that
the air gap is set correctly.
2. Tighten the spark plug to 15 ft.-lb. (20.4 N m).
3. Push the wire onto the spark plug (Fig. 27).
4. Close the hood.

Transaxle Fluid

m–1798
Service Interval/Specification
Check fluid level after every 100 hours or yearly,
whichever occurs first. Always keep the fluid level at the
full level when the transaxle is cold.
Note: The transaxle is factory sealed and does not require
oil changes.
Fluid Type: SAE 20W-50 engine oil (API service SH/CD
recommended)
24
Never clean the spark plug. Always replace
3
1
Figure 28
3. Air gap (not to scale)
0.030 in.
(0.762 mm)
1870