vacuum in engine crankcase. All parts must
be clean and in good condition. Parts can be
replaced as necessary.
b. The correct order for assembly of lire; breather
is as follows: (Fig. 30) A-Gasket, B-Plate and
Reed, (D-small drilled hole must be at bottom of
plate), A-Gasket, F-Stud, F-Rubber spacer. C-
Cover, H-Lock washer and I-Nut.
c. Cover must be tight to prevent oil leaks.
14. Magneto
a. Install square key in slot of crankshaft.
b. Figure 31 shows magneto installation. Note
Figure 29
how breaker lead and high tension spark plug
Tightening Cylinder Head Cap Screws
cable are pulled through plate opening.
c. After magneto assembly has been fastened to
b. Check cylinder head on face plate to be sure
bearing plate, rotating magnet is pressed onto
gasket surfaces make good contact at all points.
crankshaft. Magnet is marked "ENGINE SIDE"
for correct assembly.
c. It is important that head cap screws be tightened
evenly and in steps until 200 inch pounds torque
is reached. Figure 29.
d. Install new spark plug and gasket and tighten to
27 foot pounds torque. Spark plug gap should
be .025, or .020 for radio shielded spark plugs.
13. Breather Assembly
a. The reed type breather valve maintains a slight
Figure 31
Assembly of Magneto
15. Flywheel
a. Place wave washer on crankshaft and place
flywheel in position. The square key holds
flywheel on shaft.
b. Install starter pulley, lock washer and holding
nut. Insert a bar between flywheel fins (B, Fig.
Figure 30
32) and torque holding nut to 75 foot pounds (A,
Breather Installation
Fig. 32).
A - Gaskets
D - Hole
G - Cover
c. The rotating screen is fastened to starter pulley
B - Plate
E - Stud
H - Washer
with either screws and spacers or a wire
C - Reed
F - Spacer
I - Nut
retainer.
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