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2B.6 Liquid-cooled two-stroke engine
Note: This procedure can be camfed out with
the engine in the frame. I f the engine has been
removed, ignore the steps that do not apply.
1 The procedure for removal, inspection and
installation of the piston rings is the same as
for the air-cooled engine (see Chapter 2A,
Section 10).
Starter I
removal,
and inst;
pinion as:
, inspectic
allation
sembly
-
)n
Note: This procedure can be camed out with
the engine in the frame. I f the engine has been
removed, ignore the steps that do not apply.
1 The procedure for removal, inspection and
installation of the starter pinion assembly is
the same as for the air-cooled engine (see
Chapter 2A, Section 12).
12 Oil pum
removal,
! %
installatiurl
a r
lo
UIVWII
l y
%
\
P-
, inspectic
- I
---I LI
Note: This procedure can be camed out with
the engine in the frame. If the engine has been
removed, ignore the steps that do not apply.
1 The procedure for removal, inspection and
installation and bleeding of the oil pump is the
same as for the air-cooled engine (see
Chapter 2A, Section 13).
Note: To separate the crankcase halves, the
engine must be removed from the frame.
1 To access the crankshaft and its bearings,
the crankcase must be split into two parts.
2 To enable the crankcase halves to be
separated, the engine must be removed from
the frame (see Section 5) and the following
components must be removed:
Water pump (see Chapter 3)
Alternator (see Chapter 9)
Variator (see Chapter 2C)
Cylinder head (see Section 7)
Cylinder (see Section 8)
Piston (see Section 9)
Oil pump (see Section 12)
Reed valve (see Chapter 4)
Starter motor (see Chapter 9)
3 The remainder of the procedure is the same
as for air-cooled models. Refer to Chapter 2A,
Section 14 for details.
tial start- up after
(
werhaul
1 Make sure the oil tank is at least partly full
and the pump is correctly adjusted (see
Chapter 1) and bled of air (see Chapter 2A,
Section 13).
2 Make sure there is fuel in the tank.
3 With the ignition OFF, operate the kickstart
a couple of times to check that the engine
tums over easily.
4 Turn the ignition ON, start the engine and
allow it to run at a slow idle until it reaches
operating temperature. Do not be alarmed if
there is a little smoke from the exhaust
-
this
will be due to the oil used to lubricate the
piston and bore during assembly and should
subside after a while.
5 Check the coolant level and bleed any
trapped air from the coolant system (see
Chapter 3, Section 2).
6 If the engine proves reluctant to start.
remove the spark plug and check that it has
not become wet and oily. If it has, clean it and
try again. If the engine refuses to start, go
through the fault finding charts at the end of
this manual to identify the problem.
imended
lure
1 Treat the engine gently for the first few
miles to allow any new parts to bed in.
2 If a new piston, rings or cylinder have been
fitted, the engine will have to be run in as
when new. This means a restraining hand on
the throttle until at least 300 miles (500 km)
have been covered. There's no point in
keeping to any set speed limit
-
the main
idea is to keep from labouring the engine and
to gradually increase performance up to the
600 mile (1000 km) mark. Make sure that the
throttle position is varied to vary engine
speed, and use full throttle for only short
bursts. Experience is the best guide, since
it's easy to tell when an engine is running
freely.
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