17-5 EVERY
500-
600
HOURS (SEMIANNUAL) CHECKS
and
MAINTENANCE
Checks
and
maintenance
Reasons for requiring them
Remove cylinder head and remove carbon
deposit.
The engine
will
be out of order.
Disassemble and clean carburetor.
77-6
EVERY 1000 HOURS (YEARLY) CHECKS
and
MAINTENANCE
Checks and maintenance
Reasons
for
requiring them
Perform overhauls, clean, correct
or
replace
parts.
The engine output drops and become out
of
order.
Change piston
rings.
Replace fuel
pipe
once a year. To prevent
from
danger caused by the fuel leakage.
1
17-7 PREPARATION
for
LONG
ABEYANCE
1)
Perform the above
17-1
and
17-2
maintenance
jobs.
2)
Drain
fuel from the fuel tank and carburetor
float
chamber.
3)
To
prevent rust in the cylinder bore, apply oil through the spark plug hole and turn the crankshaft several turns by
hd. Reinstall the plug.
4)
Turn the starting pulley by
hand
and leave
it
where the resistance
is
the heaviest.
5)
Clean the engine outside
with
oiled cloth.
6)
Put
a
vinyl
or
other cover
over
the engine and store the engine
in
dry place.
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