5.12
Section 5
Fuel System and Governor
2. While observing the choke link, move the throttle
control lever to the low idle (slow) position, then
back to full throttle (fast). The choke link should
not move as the throttle moves through the
normal range. If it does, back the adjusting screw
out until it no longer moves.
3. Move the throttle control lever to the choke
position. Check if the choke has fully closed by
placing your finger on the right side of the lower
end of the choke lever/choke link and applying
gentle pressure towards the carburetor. If the
controls have been properly set, the link should
not move.
Separate Throttle and Choke Control
Some engines are equipped with separate throttle and
choke controls. This allows you to adjust the choke
and throttle controls individually.
Install Separate Control Cables (See Figure 5-18).
Throttle Control Installation
1. Loosen the two cable clamp screws on the speed
control bracket assembly.
2. Move the application throttle control lever to the
maximum full (fast) throttle position, and then
move it back 3/16" or 4.75 mm. Insert the cable
boden wire into the throttle control lever on the
control plate.
3. Position the throttle cable under the cable clamp.
4. Pull on the throttle cable until it stops, hold it, and
tighten the cable clamp screw.
5. Move the application throttle lever to the slow
position, then to full throttle. Check the engine
control to ensure it stops against the stop screw,
which means it is properly set.
Choke Control Installation
1. Connect the choke cable boden wire to the engine
choke control lever on the speed control bracket
assembly.
2. Position the choke cable under the cable clamp.
3. Push/move the choke control to the “off “ position
in the application panel until it bottoms, then pull it
back approximately 1/16”.
4. Push on the choke cable, ahead of the clamp on
the engine control plate, until the choke lever
stops. Do not force. Then tighten the cable clamp
screw.
5. Move the choke control until it stops (“on”
position). Check that the choke link cannot be
moved towards the carburetor by applying finger
pressure on the lower link/lever below the engine
control plate. If the choke link moves, readjust by
following steps 3 and 4.
6. Push/move the choke control in/down until it
bottoms. The choke lever and link should be to
the right at the end of its travel, with linkage free
so the engine does not run on partial choke.
Figure 5-18. Separate Choke and Throttle Cable
Controls.
Starting an Engine Equipped with Separate Control
Cables
1. Place the throttle control midway between the
“slow” and “fast” positions. Place the choke
control into the “on” position.
2. Start the engine.
3. For a Cold Engine – Gradually return the choke
control to the “off” position after the engine starts
and warms up.
The engine/equipment may be operated during
the warm up period, but it may be necessary to
leave the choke partially on until the engine
warms up.
4. For a Warm Engine – Return choke to “off”
position as soon as engine starts.
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