Lubricating The Snowthrower; Replacing The Spark Plug - Toro 38086 Operator's Manual

5. Insert the speed selector rod into the speed selector
arm and secure it with a washer and a cotter pin.

Lubricating the Snowthrower

Lightly lubricate all moving parts of the snowthrower
according to the Recommended Maintenance Schedule on
page 18.
1. Pull the wire off of the spark plug and ensure that it
does not contact the spark plug (Fig. 23).
2. Drain the gasoline from the fuel tank; refer to
Emptying the Fuel Tank on page 25.
3. Tip the snowthrower forward onto its auger housing
and block it so that it cannot fall.
4. Remove eight screws holding the back and the bottom
covers in place and remove the covers (Fig. 33).
Figure 33
1. Screws
2. Back cover
5. Lightly lubricate the snowthrower with light oil as
shown in Figures 34 and 35.
Figure 34
1. Axle gear
m-2682
3. Bottom cover
m-2679
IMPORTANT: Do not get oil or grease on the rubber
wheel or the friction drive plate. This can cause the
wheel to slip and the rubber to deteriorate.
6. Wipe up any excess oil.
7. Lightly grease the axle gear (Fig. 34).
8. Wipe up any excess grease.
9. Install the back and bottom covers.

Replacing the Spark Plug

Use a Champion RJ–19LM spark plug or equivalent.
Since the air gap between center and side electrodes of the
spark plug increases gradually during normal engine
operation, install a new plug after every 25 hours of
engine operation.
1. Clean the area around the spark plug so that foreign
matter does not fall into cylinder when removing the
spark plug.
2. Pull the wire off of the spark plug (Fig. 23) and
remove the plug from the cylinder head.
IMPORTANT:
Replace a cracked, fouled, or dirty
spark plug. Do not sandblast, scrape, or clean
electrodes because grit may eventually release from the
plug and fall into the cylinder and cause engine
damage.
3. Set the air gap between electrodes of the spark plug at
0.030 in. (0.76 mm) (Fig. 36).
4. Install the spark plug in the cylinder head.
5. Torque the spark plug to 15 ft–lb (20.4 N m).
24
m-3331
Figure 35
110
Figure 36