Changing The Engine Oil; Replacing The Spark Plug - Toro MB-1600 Operator's Manual

Changing the Engine Oil

Service Interval: After the first 50 hours—Change
the engine oil.
Every 100 hours—Change the engine oil.
Crankcase capacity: 1.1 L (1.16 US qt).
Oil type: API classification SJ or later.
Oil viscosity: selected the oil viscosity according to
ambient temperature in the table below.
Oil Viscosity Table
Over 13° C (40° F)
Below 13° C (40° F)
1. Start and run the engine for a few minutes to
warm the engine oil; then, shut off the engine.
2. Have a funnel ready to place under the oil drain
plug, then remove the plug and place the funnel
under the plug to guide the oil into a container
(Figure 20).
3. Install the drain plug and wipe away excess oil
from the machine.
4. Fill the crankcase with the specified oil; refer
to Figure 18 in Checking the Engine-Oil Level
(page 21).
5. Dispose of the oil properly. Recycle the used oil
according to local codes.
Figure 20
1. Oil pan
2. Oil-drain hole
SAE 30 or
10W30
SAE 20 or
10W30
g020104
3. Oil-fill cap

Replacing the Spark Plug

Service Interval: Every 100 hours—Check/adjust the
spark plug.
Every 300 hours—Replace the spark plug.
Spark plug type: NGK BPR 6ES spark plug or
equivalent.
Air gap: 0.70-0.80 mm (0.028-0.031 inch).
1. Remove the spark-plug wire.
2. Clean around spark plug and remove plug from
cylinder head.
Important:
Replace a cracked, fouled, or
dirty spark plug. Do not sand blast, scrape,
or clean electrodes because engine damaged
could result from grit entering the cylinder.
3. Set the air gap at 0.70 to 0.80 mm (0.028 to
0.031 inch) (Figure
carefully by hand to avoid cross-threading.
1. 0.70 to 0.80 mm (0.028 to 0.031 inch)
4. After the spark plug is seated, tighten it with
a spark plug wrench to compress the sealing
washer.
5. When installing a new spark plug, tighten 1/2
turn after the spark plug seats to compress the
washer.
6. When installing the original spark plug, tighten
1/8 to 1/4 turn after the spark plug seats to
compress the washer.
Note:
A loose spark plug can overheat and
damage the engine. Overtightening the spark
plug can damage the threads in the cylinder
head.
7. Connect the spark-plug wire.
23
21). Install the spark plug
Figure 21
g001029