TM 5-6115-405-15
inch open end wrench. Remove spark
c. Installation.
plug (para 3-11).
(1) Twist the shielded ignition cable clockwise
(2) Remove the fan housing assembly (para
into the cable well of the ignition coil until
5-11) to gain access to the ignition coil.
it is securely fastened.
(3) Loosen ground screw to free shield
(2) Insert shield ground terminal of ignition
ground terminal of shielded ignition cable.
cable under ground screw, and tighten
Turn the shielded ignition cable
screw.
counterclockwise until it is free from the
(3) Install fan housing assembly (para 5-11).
ignition coil.
(4) Install spark plug (para 3-11).
b. Testing. Check for visible damage (cracked or
(5) Insert the shield ignition cable into the
burned ceramic sleeve, damaged spring clip, abraded
open end of the spark plug and fasten
insulation). Using an ohmmeter, check that the shielded
with the cable nut. Tighten with a 3/4-inch
ignition' cable is not open-circuited.
open end wrench.
Section IV. REMOVAL AND INSTALLATION OF
MAJOR COMPONENTS
5-10. General
fan housing seats against the engine.
The major components which make up the generator
Install and tighten the four screws and
set, and which can be easily removed as major
internal tooth lock washers. Note that the
assemblies are the starter fan housing, generator,
one shorter (5/8 in. long) screw is to be
ignition parts, and carburetor.
installed in the upper centrally located
screw hole.
(fig. 5-8.) The three
Note
remaining screws are 1 11/16 in. long.
The crankshaft, connecting rod, and
piston removal and installation are
Caution
covered in Chapter 6.
Fan housing must seat all around to
avoid breakage of housing or starter
5-11. Starter Fan Housing
fingers when screws are tightened.
a. Removal.
5-12. Generator
(1) Refer to figure 5-8 and remove the starter
a. Removal.
fan housing. .Use a thin-walled 5/16-inch
socket wrench or a large screwdriver to
(1) Remove starter fan housing as described
remove the four housing screws.
(2) Lift the starter fan housing out far enough
(2) Remove air screen by taking off two self-
to disconnect the ignition switch lead at
locking nuts.
the ignition coil. Pull the lead straight out
(3) Connect the fabricated rotor locking tool
and the terminal will slide out easily.
to the magneto rotor with the two self-
b. Installation.
locking nuts. (fig. 5-9.) (4) With the rotor
locking tool preventing the shaft from
(1) Position the starter fan housing close
turning, insert a 3/16-inch Allen wrench
enough to the engine so that the ignition
into the socket head screw in the
switch lead may be connected to the
generator rotor. Remove the screw, lock
ignition coil. Slide the terminal straight
washer, and flat washer, and pull the
onto the coil tab.
generator rotor straight off the shaft. (fig.
(2) Hold the starter fan housing in place with
5-10.) Lift out the key and set it aside to
one hand, and pull the starter handle out a
avoid losing it.
short distance with the other hand until the
starter fingers engage properly, and the
5-10