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SDRVICE INSTRUCTIONS FOR WICO
TYPE A.57682.
MAGNETO
Installatlon
and
tlrnln§
Slowly
turn thc
ongirre cranl<shaft
in
the
normal
marrner
rrntil tlre
piston
is
approximately
;["
before
top
deåd centre
on,the
compression
strolie
(i.e. when
both
valves
are
closed). Then
remove
ilre
magneto contact breaker cover and
turn
the
magneto
in
a
clockwise
rotation until
the brcakcr points
close,
then
rcversc
ilre
rotation
until
the
breal<er
points
just
bcgirr
t-o
separate.
'Ihen
fit
the
coupling on-to
the
engine
coupling
and
sccrrre
the
daqneto
rn posltron.
To
re-checl<
the
timine,
slowly
pull
thc
engirre over on
thc
cornprcssion s[ro'ke, u;rd
illhe
magneto
has becri
corrcctly
position-
ed,
the
magneto
impulse
tvill
give a
clic)r
Just
atter top
dead
centre.
Tlmln§
No
adjustment
is
provided
for
timing
the
magneto,
which is
.,n,,"""..r.y]
as
the
magueto
is
correcfly
sct
bcfoie
leaving
the
works, so
that-flre
startii.rg
sparh
occurs
just after
top
duad
ccltrc
anå
the.
running spark
25.
belorc
top
tlcrd
contre.
Lubrlcatlon
The
magneto
is
pror.irlcd
with
two
spring
oilers.
Once
ejery
200 ]rorrrs
eithcr
one
of
these
oilors should
ire
Iilk.rl
to
ovcrfiowing
with
Castrolite. After
every
1,000
hours
it
is
trecessary
to
ru-lubricate
the
carn
oil,pad.
This
is dirne
by
removing
tho pad and
squeezing
and woririrrg
into
ii
a
Summer grade
of
motor
transnrission
grease
which
will
closelv
resemble
that
used
at
the
factory.
Do
not
usc
ordinary
grease.
Impulse
coupllnE
The impulse coupling
is designed
to
give
a
spark
of
high
density
for
§tarting.-
It
automatically-
cuts out at
about"
165
r.p.m. The enslne should
not
be
run
contlnuously below
thls
speed,
as
thls
would
cause unnecessary
straln
and
wear
on
the lrnpulse
parts.
The irnltulsc
also
pror.icles
a
retarded
spark
for starting,
aritonratically
advanc-
ing
it
as
tlre
enginc
spoccls
rrp,
rciurning to
the
retarded position wlren
the
en§ine
stops.
PÅcB I8
Cleanlng
of
lmpulse
.
If the
impulse
becomes
clogged
with
dirt,_
and
the trip
arm fails
io
engage
or
dlscngagc,
or the
impulse is sluggish in
action,
it
should
be
flushed out
thoroughly
with
paraffin,
taking
care
not
to
allowåny
parallin
to
work
its
way
into
the
magrrcib
housing.
Replacernent of breaker polnts
-
If
the
points
need
replacing,
both
the
fixed and
moviug points should
be
re-
placed
at
the
sarne
time.
To
rernove
the breaker arrn, take
o1I
the
breaker arm clarnp
screw,
lock-washer
and
clarnping washcr, together
with
the
lrre:rl<cr
arrrt
terminal
scrclv
and
pull
the
assembly
olf the
breal<er
arm
pivot.
The
frxcrl corrtact
1,llatc
rn.ry
thcn
bl
takelr
otf
thc lrrcakol
arrn
pivot,'alter
rorrroving
the
{ixed
contact
screw.
Romoval of
condenser
Rcrnove
screw
holding down
the
breakcr
arrn
spring.
-Ihe
condenser
is then
taken
from thc
Ilrcakcr
box by rernoving the two
scrcws
f:rstcniug
it
dovrn.
Rernoval of
coll
Ilemove
the top cover and
the
breal<er
box
cover.
Viewing the
magneto
{rom the
driving
end, rcleaie
the
pri"mary
lead
by
loosening
the
right
irair<1
sia"e
earth
stud.
'Ihcn
remove
the
trvo
screws
holding down the
core
clanps. 'furn
tht:
magncto
slialt until the
magnetism
no
longer grips
the
coil
core
to the
main
housing,
pull
the coil
and
the coil
core free.
The
coil
is held on
the
core
by
a
we<1ge.
If
the
coil
is
to
be
replaced, cånsideralle
{orce
may
be necessary
to
removc
the
coil
from
the core.
In
replacing
the
coil
and coil core,
be
sure
that,
the
ground
surface of the core is
against
the housing,
that
the
primary
lead [o
ttre
earthing stud
is
propeily
located and
that
the primary earth
lead
is
fastened under
the coil
core
clamp
screw.
Breaker
polnt
openlng
The
correct
breaker
point
opening
is
.015'.
When readjustmånt
is
,i"."rråry,
loosen
the
screw
which locks
the
fixed
contact
plate and turn the
eccentric-
headed screw
until the
correct
opening
oI
points
is
obtained.
Then
lock
thå
plat6
securely.
SPARE PARTS
LIST
raxt2tc
H.r,
xlø
xtst
x
raI
1,,,
øt2a
x2l15
cra2
I
sls
Peoe
17
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