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IGNITION,
TIMING_
._,_,:j.,:,,:_, ' ,, ...............
.,.
• pismantle,_the_
engin.e
shroud,
then _ remo_/e' the _bracket
cover and the fan case from the •motor,
and observe the
mark °'M"
on the circumference
of the magneto flywheel.
The
letter
"M"
denotes
"IGNITION
TIMING".
When
the
letter
"M"
lines up with
mating
line stamped onthe
crankcase,
the
contact
points
should
be opening,
The
ignition
timing
should be adjusted
by turning the contact
breaker
base
plate.
If the
two
locking
screws
on the
pl ate towards the.right. ::. .........
b. When retarding the timing, turn the base plate towards
the left. (Lll
& 12)
I-11
_--
CONTACT
BREAKER
POINTS
_'
•It is necessary to remove the engine
shroud, the fan case
and
the
magneto
rotor
prior
tro adjustingth-e_contact'
..:_.- . ............
points.
The point
gap should be set tO0.35mm
(0.013in.)i.'ii"::;i"i_:""
at maximum
opening.
If the contact
points
are burnt
or. _
..........
pitted,
they
should
be lightly
, filed _with
a pointf!le
o[.:-_,.
:_;_:_,.-
fine
sandpaper,
if an oil film
is_noted
on the pointsur-_,_i'oii_.i_
ii_.
face, they
should be wiped with a clean rag.
'":-
,'_-:
- s;:
._.:_-;
NOTE:
Always
reset
the -contact
pointsafter
filingor
/:":_-.._. _
dressing
to the
recommended
gap (0.35mm
or
0.013
in.).
If a deviation
of more than 5 degree is
.
- :
O.35mm
-
_'_
(O.013 _n.)_
noted when lining
the ._'M"_ markWith
the mating
....
" :_"_:_:_]['_'12
_` _'-
"
1--13
Sine, the contact
poihts'mu'_t be:_replaced_. (L13)
-_'_.!._: _ .___-_-_:,._..,,_.._.._,._,,.,
_, ., _.,,,_
.
Th'is type
of carburetor
is used On equipment
which may
_;::'
t__J: ..:..-:-
._,
.-.:
: I_
I
occasionally
be operated
at various
angles and with
the
; ....
(-_N=
:
.
_
_
fuel tank position
below
the level of carburetor
to prevent
_;._".=
!- :.:, ,.'_
"I
_
gas leaking or carburetor
flooding.
This is one of the most
_
/
|
advanced,
yet simply constructed
and most reliable
carbu-
°
li_ '_ _.___IDLE
ADJUSTMENT I
U_i
retors
on
the
market
today.i
The carburetor
is Used in -
i:
_:
_
SCREW .
.
I
I._
conjunction
with a diaphragm
type fuet pump to assure a ....
_i.! _ J i
'
" '"
_i
I_
constant
flow
of
fuel
and steady .motor
performance.
5 . ;_ 1. Turn;ngto the right increases..: -_r
It
h"
,,
"
,,
.......
"
_-=--_
" Iowest enginespeed
. . '
_--_*_
T
,s carburetor
also features
SERVICE
FREE
oper-
---
" .
ation with servicing
generally
being
limited
to cleaning
of
1-14
2. Turning to theleft decreases
lowestengine speed
the fuel passages only.
(I-t4
& 15)
..........
.
.
, .A!Rc
LEANER
AIR
CLEANER
The
carburetor
is suppli_:l
with
a higll efficiency
type
....
CLEANER
reusable
sponge air
filter.
When
the,filter
element
be:
_
comes clogged, the
motor
may fail to start or run in an
overrich
fuel condition
which greately recluces the power.
AIR
CLEANER
The
filter
element
should
occasionally
be cleaned
by
_,
COVER
washing
in warm
soapy
water;
completely
drying
and
reinstalling
in the case.
(I-16)
1-16
1-17
NEVER
RUN
MOTOR
WITHOUT
AIR
CLEANER.
GEAR
CASE
LUBRICATION
After
every
100 hours of operation,
it:is important
that a
good quality
grease be added to the gear case. (1-17 &18)
°,
DRIVING
ROLLER
.
:°:°
"
To
remove
roller,
first.dismantle
the engine
shroud,
then
unscrew
the roller
fixing
nut clockwise
with the wrench.
No. 48859
Roller
should normally
be replaced
approxi-
mately
every 500 miles.
1--18
1-19
5
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