Operating The Engine - Toro 38700 Operator's Manual

Operating the Engine

Positioning the Air-Cleaner Cover for
Cold or Warm Air Temperature
Important: Running the engine with the air-cleaner
cover positioned for cold-weather operation in normal
conditions can damage the engine.
The air-cleaner cover has 2 positions: the cold or normal,
ambient air positions:
Adjust the air-cleaner cover as follows:
•
When operating in a cold ambient air condition (cold
air temperature and humidity)—position the air-cleaner
cover with snowflake decal facing out
Note: Use this position if your machine exhibits
carburetor icing. Symptoms include the engine runs
rough at idle or low speed, and it discharges black or
white smoke in the exhaust.
•
When operating in a normal ambient air
condition—position the air-cleaner cover with sun decal
facing out (Figure 8).
Note: Use this position if your machine is not exhibiting
carburetor icing.
1. Normal ambient air
position
(Figure 8).
Figure 8
2. Cold ambient air position
Opening the Fuel-Shutoff Valve
Move the fuel-shutoff valve located below the choke, to the
right to turn on fuel (Figure
1. F O position
UEL N
2. Fuel-shutoff valve
Starting the Engine
1. On the right side of the engine, rotate the engine
On/Off switch clockwise to the O
10).
1. Engine-recoil handle
2. Throttle
2. On the rear, left side of the engine, move the choke
lever to the left to the O
leave the choke in the O
12
9).
Figure 9
3. Choke
position
N
Figure 10
3. Engine switch (O
position)
4. Engine switch (O
position)
position. On a warm engine,
N
position (Figure 9).
FF
(Figure
FF
N