Removal From Drive Tube - Toro TC 1000 Service Manual

Engine Operation (cont'd)
Figure 85
Figure 83
8. The exhaust port is uncovered by the piston
and the exhaust gases are allowed to exit.
See Fig. 84.
EXHAUST
EXHAUST
GASES
PRESSURE
PORT
Drawing a fresh mixture into the combustion
chamber completes the combustion cycle. The
complete cycle took one full turn of the
crankshaft.
Engine Removal From Drive Tube
1. Pull the spark plug lead from the spark plug.
2. Pull the ignition switch wires from the rear of
the throttle control grip. A needle nose plier
may help. See Fig. 86.
Figure 86
Figure 84
9. The scavenger ports are uncovered resulting
in a fresh air/fuel mixture being forced into
the combustion chamber by the lower crank-
case pressure. Note that this process is not
efficient and that some exhaust gases
are mixed with the fresh air/fuel mixture. See
Fig. 85.
3. Remove the two screws retaining the throttle
control housing to the drive tube and remove
the throttle cable from the trigger.
4. Pull the throttle cable out of the throttle
control grip.
5. Loosen the locating screw and the clamping
screw. See Fig. 87.