Radiator Core; Cooling System Hoses; Cylinder Compression - Honda V65 MAGNA Shop Manual

MAINTENANCE
RADIATOR CORE
V65MAGNA
Check the air passages for clogging or damage.
Straighten bent fins and collapsed core tubes.
Remove insects, mud or any obstruction with com-
pressed air or low water pressure.
Replace the radiator if the air flow is restricted over
l)1ore 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.
NOTE:
Crank the engine until the gauge reading
stops rising. The maximum reading is usually
reached within 4-7 seconds.
COMPRESSION PRESSURE:
13 ± 2 kg/cm
2
(184 ± 28 psi)
If compression is low, check for the following:
Improper valve clearance
- Leaky valves
- 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.
WATER HOSES
COMPRESSION GAUGE ATTACHMENT
07510-MB00101
3-1
40
Date ofissue:Dec,1982
©HONDA MOTORCO.;LTD.