Service manual
ENGINE
ADJUSTMENTS
ENGINE
IDLING
SPEED
The engine idling speed
is
pre-set
at
the
factory
but once
the
boat
is
operating in
the
water other variables
such
as
pro-
peller size, shaft length, ahd the transmission can affect
the
idle
speed.
\\
THROTILE
CONTROL
The
normal
idle speed for these engine
models
is
1000-1200
rpm
at
normal engine operating temperatures. Where ever in
this
rpm
range the engine operates the smoothest,
does
not
stall
when
the throttle
is
restarted
and
no
damper chatter
is
produces. ยท
ADJUSTING
THE
IDLE
SPEED
1.
Loosen
the
locknut
on
the
idle adjustment bolt
on
the
fuel
injection
pump.
2.
Adjust
the
bolt
so
that
the throttle control lever
will
hold
the
engine
at
a quiet idle (1000-1200
rpm).
3.
Tighten
the
locknut.
4.
Race
the
engine several
times
to
ensure
the
idle
speed
remains
as
set.
OPTIONAL
FUEL
RUN/SHUT-OFF
SOLENOID
The
fuel
run
solenoid
is
mounted
in
a threaded hole
on
the
engine's block just
aft
of
and
below
the engine's injection
pump.
Proceed
as
follows
when
installing a replacement or
new
fuel
run solenoid.
1.
Visual
access
to
the
fuel
injection
pump's
fuel
rack
is
needed.
To
obtain
this,
'remove
the
shut
off
lever
and
gasket
just
below
the
fuel
injection
pump.
2.
Thread
the
locknut
onto
the
solenoid
and
then
apply
a
small
amount
of
Teflon
sealant
to
the
threads
on
the
solenoid
3.
Thread
the
solenoid into the
hole
on
the engine and
observe the solenoid plunger through the cover opening.
~
Allow
the plunger
to
contact
the
fuel
rack
and
move
fully
lEVER
into
the
injection
pump.
Do
not
thread further
so
as
to
FUEL
RUN
push
the
plunger into the solenoid.
SOLENOID
4.
Back
the
solenoid
out
1/4
-
1/2
of a tum
and
secure
it
in
position
with
the
locknut
LOCKNUT
TORQUE
VALUE
28.9-36.2
FT-LB
(4.0-5.0
M-KG)
5.
Properly
connect
the
three electrical
leads
from
the
solenoid.
Two
of
the
connections plug into
the
engine
harness
and
the
third grounds
to
the
engine block at
an
adjacent
inbmird
threaded hole with
an
8mm
bolt.
6.
Re-assemble
the
shut-off
lever
with
gasket
and
test
run
the
unit.
Make
certain
the
unit
stops
when
the
solenoid
is
de-
energized.
If
it
does
not
and
only
goes
to
idle.
Thread
the
solenoid
in
1/8
-
1/4
tum
till
shut-off
is
obtained.
FUEL
RUN
SOLENOID
34
FUEL
RUN
SOLENOID
PUSH
TYPE
VOLTAGE:
10V-
15V
DC
Coil
resistance
is
1.6
n :t
10%
(at
20"
C).
STROKE:
0.394
:t
0.0197in
(10
:t
0.5mm).
0.394
:t
0.0197in
(10
:t
0.5mm)