Service Manual

7.
8.
9.
10.
11.
adapter plate with the dimple facing the spark
crankshaft. The blade retaining capscrew
plug end. Install the four retaining capscrews
should be tightened to 6.2-8.3 Kg-m (45-60
and torque to the proper specification.
ft-llb).
Install the ignition cam and locating pin to the
flywheel end of the crankshaft. Install the con-
denser and points in position. Rotate the
crank-
shaft until the cam follower is on the high point
of the cam. Adjust the point gap using a feeler
gauge of the appropriate size to set the air gap
at
.35 mm (.014 in). (47PZ2 engine only.)
Install the ignition coil loosely on the mount-
ing posts. Connect the double lead to the
contact point assembly (47PZ2 engine only),
making sure the wires are routed between
the ignition coil mounting posts. The single
lead should be routed along side of the
crankcase housing through the hole in the
casting. The ignition coil air gap setting will
be adjusted later.
Place the gasket, spacer and the second gas-
ket over the mounting studs of the carburetor.
See Figure
2-18 for correct gasket and spacer
placement. Slide the carburetor onto the
mounting studs. Assemble the governor con-
trol lever, linkage and springs to the governor
shaft and the carburetor throttle plate. Move
the governor shaft to the right and rotate the
governor shaft to the right. Tighten the clamp
bolt to hold the adjustment.
Install the contact point cover (47PZ2 engine
only), flywheel key and flywheel to the crank-
shaft. Install thestartercupwith thecapscrews
and torque to
80-90 Kg-Cm (70-1 10 in-lb). Use
the starter cup wrench to hold the flywheel
from turning and tighten the’
retaining nut on
12. Cage the engine brake spring by lifting the
control bar into the handle and retaining it in
place. Install the ignition switch, brake assem-
bly and brake pad on the engine. Release the
control bar and connect the ignition switch
wire. (47PZ2 and zone start models only.)
IMPORTANT: CHECK
FOR PROPER OPER-
ATION
OF THE IGNITION SWITCH AND
BRAKE ASSEMBLY (See Troubleshooting
Section page 111-1
).
13. Place the blower housing on the engine and
attach with one capscrew in the front and
another in the rear.
NOTE: USE CAUTION IN ROUTING THE
HIGH TENSION WIRE
SO THAT IT DOES
NOT BECOME PINCHED BETWEEN THE
BLOWER HOUSING AND THE ENGINE.
14. Place the muffler and muffler gasket over the
engine studs. Install the through-bolt, nuts
and lock washers on the muffler and tighten
to the recommended torque.
15. Connect the choke cable to the carburetor
and camp the cable in place on the blower
housing. Install the air cleaner housing to the
carburetor mounting studs using the ap-
propriate nuts. Install the through-bolt and
tighten the bolt and nuts to the recom-
mended torque. Position the filter element in
place and install the air cleaner cover. En-
sure the cover snaps firmly in place.
the end of crankshaft to 4-5 Kg-m (29-36 f3-lb).
16. Slide the fuel tank into position and connect
Use the air gap gauge listed in the Special
the fuel line to the carburetor. Attach the
Tools Section and adjust the air gap between
recoil assembly using the four capscrews
the flywheel and ignition coil laminations to
.5
required and route the starter rope through
mm (.020 in) maximum.
the handle stop on the mower handle.
Attach the engine to the mower chassis and 17. Install the spark plug and attach the high
install the blade components to the engine
tension wire.
SERVICE DATA SPECIFICATIONS
Crankshaft Alignment
Place the magnetic ‘V” blocks under the crank-
shaft bearing support area. To level the crank-
shaft, shims must be added under the magnetic
V” block at the flywheel end. Rotate the crank-
shaft with the dial indicator positioned as shown
and note the indicator fluctuations. Take readings
on both ends of the crankshaft.
Measure at A 38.lmm (1.5 in)
both ends
between largest and smallest
Total alignment difference
less than .05mm (.002 in).
readings must be
IV-4