GENERAL INFORMATION
1·3
(31
Dirt
Before removal and disassembly. clean the watercraft. Any sand entering
the
engine car-
buretor,
or
other
parts will work as an abrasive and
shorten
the
life
of
the
watercraft.
For
the
same reason, before installing a new part, clean
off
any
dust
or metal filings.
(4)
Battery
Ground
Remove the ground
(-I
lead from
the
battery before performing any disassembly operations
on
the
watercraft. This prevents:
(a)
the possibility
of
accidentally turning the engine over while partially disassembled.
(b) sparks
at
electrical connections which
will
occur
when
they
are disconnected.
(e) damage
to
electrical parts.
(5) Tightening Sequence
Generally. when installing a
part
with several bolts, nuts,
or
screws, they should all be started
in
their holes and tightened
to
a snug fit. Then tighten them evenly
in
a cross pattern. This
is
to
avoid distortion
of
the
part
and/or
causing gas
or
oil leakage. Conversely
when
loosening the
bolts, nuts, or screws, first loosen
all
of
them by
about a quarter
of
turn
and
then
remove them.
Where there
is
a tightening sequence indication
in
this Service Manual,
the
bolts, nuts,
or
screws must be tightened
in
the
order and method indicated.
(6) Torque
The torque values given
in
this Service Manual should always be adhered to. Either
too
little
or
too
much
torque
may lead
to
serious damage.
Use
a good quality, reliable
torque
wrench.
(7) Force
Common sense should
dictate
how much force
is
necessary
in
assembly and disassembly.
If
a part seems especially difficult
to
remove
or
install, stop and examine
what
may be causing the
problem. Whenever tapping
is
necessary, tap lightly using a wooden
or
plastic faced mallet.
Use
an
impact driver for screws (particularly for the removal
of
screws held
by
a locking agent)
in
order to avoid damaging the screw heads.
181
Edge,
Watch
for
sharp edges, especially during major engine disassembly and assembly. Protect your
hands with gloves
or
a piece
of
thick cloth when lifting
the
engine
or
turning it over.
(9)
High
Flash-point Solvent
A high fla$h-point solvent
is
recommended
to
reduce fire danger, A commercial solvent com-
monly available
in
North America
is
Stoddard solvent (generic name). Always follow manufac-
turer
and container directions regarding the use
of
any solvent.
(1OJ
Gasket, O-ring
Do
not
reuse a gasket
or
O-ring once it has been
in
service_
The
mating surfaces around the
gasket should
be
free
of
foreign
matter
and perfectly
smooth
to
avoid oil
or
compression leaks.
(11) Liquid Gasket, Non.permanent Locking Agent
Follow manufacturer's directions for cleaning and preparing surfaces
where
these compounds
will be used, Apply sparingly. Excessive amounts may block engine oil passages and cause
serious damage.
An
example
of
a non-permanent locking agent commonly available
in
North
America'is Loctite Lock'n Seal (Blue).
{12) Press
A
part
installed using a press or driver, such
as
a seal, should first
be
coated
with
oil on its
outer or inner circumference so
that
it will
go
into place smoothly.
{13)
Bal!
Bearing
When installing a ball bearing, the bearing race which
is
affected by friction should
be
pushed
by a suitable driver. This prevents severe stress on the balls and races, and prevents races and
balls from being
dented,
Press a ball bearing until it
stops
at
the
stop
in
the hole
or
on
the
shaft.
(14)
Oil
Seal and Grease Seal
Replace any oil
or
grease seals
that
were removed with new ones,
as
removal generally damages
seals.
When pressing
in
a seal which has manufacturer's marks, press it
in
with
the
marks facing out,
Seals should be pressed into place using a suitable driver, which contacts evenly with
the
side of
seal, until the face of the seal
is
even with
the
end
of
the
hole.
(15) Seal Guide
A seal guide
is
required for certain oil or grease seals during installation
to
avoid damage
to
the
seal lips. Before a shaft passes through a seal, apply a little oil, preferably high temperature
grease on
the
lips
to
reduce rubber to metal friction.