Honda V65 Magna-VF1100C 1983 Shop Manual page 51

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.
EVAPORATIVE EMISSION CONTROL
SYSTEM (California model only)
Check the system hoses for damage, deterioration,
clogging, or loose connections.
Check the charcoal canister for cracks or damage.
Refer to the vacuum hose routing diagram label for
the hose connections.
CARBURETOR PIP ING
NOTE:
Be careful not to bend, twist, or kink the
tubes when installing.
Slide the end of each tube onto its fitting
fully and secure with hose clamps.
Secure with the hose clamps whenever
specified.
Check that the hoses do not contact sharp
edges or corners.
MAINTENANCE
COMPR AU 07510-MB00101
COMMERCIALLY AVAILABLE IN U.S.A.
'84, '85: AFTER '85:
PURGECONT~LV~
( ~
(i
\
\
~
I .
~~- .~->;\,
I, - ,........-""
\._--- J '
~
CANISTER
'84, '85:
PURGE CONTROL VALVE
TO
AIR VENT ATMOSPHERE
CONTROL _,
VALVE .
2
CANISTER
AFTER '85:
VACUUM HOSE ROUTING DIAGRAM
EHQINE FAMILf GHN109844C3
EVAPORATIVE fAMILY telC
CAUFORNIA VEHICLE
I
~-850
j
3-17