Toro GREENSMASTER 3100, Operator'S Manual

Page: 30 / 48

30
Adjusting the Throttle Control
Proper throttle operation is dependent upon proper
adjustment of the throttle control. Before adjusting the
carburetor, ensure that the throttle control is operating
properly.
1.
Loosen the cable clamp screw securing the cable to the
engine (Fig. 37).
1
2
3
4
5
6
7
Figure 37
1. Throttle casing clamp
screw
2. Throttle cable
3. Swivel
4. Stop
5. Choke casing clamp
screw
6. Choke cable
7. Choke butterfly
2. Move the remote throttle control lever forward to the
Fast position.
3. Pull firmly on the throttle cable until the back of the
swivel contacts the stop (Fig. 37).
4.
Tighten the cable clamp screw and check the engine
RPM setting.
High Idle: 2850 ± 50 RPM
Low Idle: 1650 ± 100 RPM
Adjusting the Choke Control
1. Loosen the cable clamp screw securing the cable to the
engine (Fig. 37).
2. Move the remote choke control lever forward to the
Closed position.
3. Pull firmly on the choke cable until the choke butterfly
is completely closed, then tighten the cable clamp screw
(Fig. 37).
Adjusting the Carburetor and
Speed Control
Important
Before the carburetor and speed control are
adjusted, the throttle and choke controls must be adjusted
properly.
The engine must be running during adjustment of
the carburetor and speed control. Contact with
moving parts or hot surfaces may cause personal
injury.
• Shift into neutral and engage the parking brake
before performing this procedure.
• Keep hands, feet, clothing, and other body parts
away from the cutting blades, rotating parts, the
muffler, and other hot surfaces.
Warning
1. Start the engine and let it run at half throttle for
approximately five minutes to warm up.
2.
Move the throttle control to the Slow setting. Adjust the
idle stop screw counterclockwise until it no longer
contacts the throttle lever.
3.
Bend the governed idle spring anchor tang (Fig. 38) to
attain an idle speed of 1625 ± 50 RPM. Check the speed
with a tachometer.
1
2
Figure 38
Shown with Air Cleaner Removed
1. Governed idle spring
anchor tang
2. High speed spring anchor
tang
4.
Adjust the idle stop screw clockwise until the idle speed
is an additional 25 to 50 RPM over the idle speed set in
step 3.
5.
Move the throttle control to the Fast position. Bend the
high speed spring anchor tang (Fig. 38) to attain a high
speed of 2850 ± 50 RPM.