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adjust
the
length
of the throttle
connectmg
rod
Fmally
back
off the
mterconnectmg
shaft
adJustmg
screws
and decrease the
engme
speed Agam
check with the flow
meter to
confirm that
the float
settmgs
are
even
Re
adJust
If neceesary
by
means
of
the throttle
adJustmg
screws
Stop
the engme and refit the
air
cleaner
Adjustment
of
Jet
needle
Remove the
suction
chamber and the
suction
piston and
turn
the
Idling adJustmg
nut
Usmg
a
depth
gauge check that the
dimension
A
between the Jet
bndge
and the
top
of the needle
head
IS
05
mm
00197
m
When this dimension
IS
obtamed
re
mstall the
suction
piston and the
suction
chamber and check
the smooth operation of the
suction
piston
The Jet needle
IS
now set
m
basic
position
Float level
Remove the float chamber
clip
disconnect the fuel pipe and
remove
the sleeve
nut
If
a
fuel level gauge
IS
avallable
connect
the gauge
to
the fuel pipe
connection
on
the carburettor
re
connect
the fuel pipe and
start
the engine
The fuel level
m
the
glass
tube of the level gauge should be b
tween
22 and 24
mm
0866
0945
m
from the top of the float chamber If
no
level gauge
IS
available
proceed
as
follows
Remove the float chamber
cover
after
undOing
the four
cover
screws
and
11ft
off the
cover
together
with the
attached float lever
Hold the
cover so
that the float lever
Side
IS
faCing
upwards
2
Lift the float
lever with the tip of the
fmger
and then
lower
It
until the float lever
seat
Just
contacts
the valve
needle
stem
If the dimenSion
H
m
Fig
E 33
IS
between
14
to
15
mm
0551
to
05901
m
I
the float
level
IS
correct
I f necessary bend the float lever
as
shown
m
the
Illustration
StartIng
mterlock opemng
To
adjust
the startmg mterlock opening
bend the
connectmg
rod 4
m
Fig
E 34 with
a
suitable pair of
pliers
The opening
IS
mcreased
by lengthening
the
connectmg
rod and reduced
by
shortenmg
the rod The
length
of the connectmg rod
IS
correct
If the clearance
between
the throttle valve and the throttle
chamber
dimenSion
8
m
Fig
E 34
IS
0 6
08
mm
00234
00315
m
I
with the
starter
lever
pulled
out
completely
Hydraulic damper
The
damper
011 should be checked approx every 3000 miles
or
every 3 months
To check the 011 level
remove
the 011 cap
nut
as
shown
m
Fig
E 35 and check the level
markmg
on
the
two
grooves
on
the
plunger
rod
If the level has
dropped
below the
lower Ime
fill
m
SAE 20 engme 011
Use
an
011
can
and fill
m
the 011 until the level has reached the upper line When
msertlng
the
cap
nut
take
care not to
bend
or
damage
the
plunger
rod
Tighten
the
nut
suffiCiently by
hand
FUEL FILTER
The fuel filter
IS
of the throw away
cartridge
type
and should be
changed
every 40 000 km
24
000
miles
To
remove
the fuel
filter disconnect the mlet and outlet PipeS and
remove
the filter
Fig
E
36
The
mstallatlon of the filter
IS a
reversal of the
removal
procedure
32
FUEL PUMP
Removal
Disconnect the
mlet and
outlet hoses from the fuel
pump
connection
and
remove
the
two
mounting
nuts
FUEL PUMP
Dismantling
Refer
to
Fig
E 37 Remove the
screws
secunng the upper
to
the
lower
body
and 11ft off the upper
bOdy
Remove the
valve
retamer
secunng
screws
and 11ft
out
the
retainer
valves and
packmg
Remove the
cover
retammg
screws
and 11ft off the
cover
together
With the
gasket
On the lower
body
half press down the
diaphragm
and unhook
the
diaphragm
rod from
the rocker
ann
link
Lift
out
the
diaphragm
Remove the spnng 011 seal
retamer
01
seal
packing
To
remove
the rocker
ann
assembly
dnve
out
the piVOt pm
towards the serration and 11ft off the
individual
parts
FUEL PUMP
Inspection
Thorouqhly
clean all parts and check
as
follows
The
body
and
cover
for cracks defective threads
or wear
The
diaphragm
for
wear
and
tear
and
a worn
pull
rod The
sealmg
faces of the valves and the spnng for weakness and
corrOSion
The rocker mechanism for
wear
FUEL PUMP
Assembly
Insert the rocker
arm
and the link
m
the lower
body
and hold
m
place
while
fitting
the
piVOt
pin from the
non
serrated Side of
the pin
Install the rocker
arm
spnng
Install the 011 seal and the seal washer and the
diaphragm
to
the
lower
body
half Press down the
diaphragm
and engage
It
With
the rocker
arm
link
Fit the
cover
to
the upper
body
half
Install the
packing
and the valves
correctly
mto
the upper
body
half and
secure
the valves With the valve
retamer
and the
screws
POSition the
upper
body
onto
the
lower
body
and
msert
the
screws
Make
sure
the
screws
pass
through
the
diaphragm
Without
teanng
the matenal
Tighten
the
screws
evenly
and
securely
FUEL PUMP
Installation
Reverse the removal
procedure
Start up the engine and check
for fuel leaks
FUEL PUMP
Testing
Remove the carburettor fuel pipe and
connect
a
pressure gauge
on
to
the fuel pump outlet
fitting
Run the engme and check
the fuel pump pressure which should be 0 18
024
kg
sq
cm
256
34 pSI
I
If the pressure
readmg
IS
below the
settmg
replace
the
diaphragm
sprmg
Conduct
a
flow check
by
connectmg
the mlet pipe and
msertmg
the outlet pipe
m a
SUitable contamer Start the engine and
run
at
1000
rpm for
one
mmute
The
mmlmum
quantity
of
fuel
delivered
should be 1000
c c
If
not
check the pump for
malfunction and the fuel lines for
blockages
If
blocking
or
restnctlons are
suspected
m
the fuel lines
remove
the pump and
blowout the lines With
Compressed
air
Repeat
the flow test
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