Speed Selector; Auger Drive Control; Ignition Switch; Discharge Chute Control - Toro 521 Operator's Manual

seasons. Toro Stabilizer/Conditioner cleans the
engine during operation and prevents gum–like
varnish deposits from forming in the engine during
periods of storage.
DO NOT USE FUEL ADDITIVES OTHER
THAN THOSE MANUFACTURED FOR FUEL
STABILIZATION DURING STORAGE SUCH
AS TORO'S STABILIZER/CONDITIONER OR
A SIMILAR PRODUCT. TORO'S
STABILIZER/CONDITIONER IS A
PETROLEUM DISTILLATE BASED
CONDITIONER/STABILIZER. TORO DOES
NOT RECOMMEND STABILIZERS WITH AN
ALCOHOL BASE SUCH AS ETHANOL,
METHANOL OR ISOPROPYL. ADDITIVES
SHOULD NOT BE USED TO TRY TO
ENHANCE THE POWER OR PERFORMANCE
OF MACHINE.
1. Clean area around the fuel tank cap (Fig. 14).
Remove cap from fuel tank. Using unleaded,
regular gasoline, fill tank to within 1/4" to 1/2"
(6 to 13 mm) from the top of the tank, not into
the filler neck. This space is for expansion of
fuel. Do not fill tank full. Reinstall fuel tank cap.

Operation

Controls

Auger Drive Control (Fig. 15)—Control has two
positions: ENGAGE and DISENGAGE. To engage
both auger and impeller, compress lever against right
handgrip. To disengage, release lever.
Traction Control (Fig. 15)—To engage traction
(wheel drive), lever must be compressed against left
handgrip. To stop traction, release lever.
Speed Selector (Fig. 15)—The control has four
positions: reverse, 1, 2 and 3. To change speeds,
move gear shift to position desired. Lever will lock in
notch at each speed selection. Use positions 1, 2 or 3
depending on snow conditions.
Ignition Switch (Fig. 15)—Switch has two positions:
ON and OFF. Rotate key to ON position before
starting engine with the recoil starter. To stop engine,
rotate key to OFF.
Throttle (Fig. 16)—Moving the throttle upward
increases engine speed.
Choke (Fig. 16)—Rotate choke to FULL choke
position to start a cold engine. As engine warms up,
move choke gradually to OFF.
Primer (Fig. 16)—Press primer to pump a small
amount of gasoline into engine for improved cold
weather starting.
Fuel Shut–Off Valve (Fig. 15)—Valve is located
under fuel tank. Close valve to stop fuel flow from
fuel tank and open valve to allow fuel to flow to the
carburetor. Close valve when snowthrower is not in
use.
Discharge Chute Control (Fig. 15)—Rotate
discharge chute control clockwise to move discharge
chute to the left and counterclockwise to move chute
to the right.
Recoil Starter (Fig. 16)—Recoil starter is on back
side of engine. Pull recoil starter to start engine.
Chute Deflector Handle (Fig. 15)—Deflector handle
is on top of discharge chute, and it is used to control
height of the snow stream.

Starting/Stopping Engine

Starting
Note: If engine is operated when temperature
is +40 F (4 C) or higher, remove
carburetor heater box (Fig. 17).
However, the heater box must be
reinstalled when temperature falls
below +40 F (4 C). To remove heater
box:
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