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MAINTENANCE
RADIATOR CORE
Check
the
air passages for clogging or damage.
Straighten bent fins, remove insects, mud or any
obstruction with comprlHsed
air or low water
pressur •.
Aeplace the r&diator
if
the
Ilr
flow is restricted over
more than
20%
of the
radiating
surface.
COOLING SYSTEM HOSES
Inspect the hoses for cracks or deterioration, and
replace if necessary.
Check the
tightness
of all hose clamps,
CYLINDER COMPRESSION
Warm up the engine.
Stop the engine, then disconnect the spark plug
caps and
remove
the spark
plugs.
Insert the compression gauge.
Open the throttle all the way and crank the engine
with the starter motor.
Crank the eogine until the gauge reading
stops rising.
The
maximum reading is usually
reached Within
4·7
seconds,
COMPRESS
ION
PRESSURE:
13
±
2 kg/em
l
(184
±
28 psi)
If
compression
is
low, check for the
following
:
Leaky
valves
Improper
valve dearance
Leaking
cylinder head gasket
-
Worn
piston/ring/cylinder
If
compression is
high, it
indicates
that
carbon
deposits have accumulated on the combustion
chamber and/or the piston crown.
3-14
40
W
HONDA
®
V45
~~:::
Date of
Issue
:
May,
1982
©
HONDA
MOTOR CO
..
L TO.
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Table of Contents
Troubleshooting
