2
LOCKED FOR PRINTING – SELECT SECT. NEEDED >
53
Oil Pressure
Test Switch
Use Digital Multimeter #
19464
. Set meter to test for
continuity.
Remove pressure switch. Connect one tester lead to
the switch terminal and the other lead to the metal
body of the switch,
Fig. 48
. The tester should
indicate
CONTINUITY
when no pressure is applied
to the switch. The switch should
OPEN
(no
continuity) when approximately
4.5 PSI
(0.3 Bar)
is
applied. Replace the switch if test results are not to
specification.
Fig. 48
If the oil pressure switch is within specification and
the warning light remains ON, verify engine oil
pressure with an oil pressure gauge.
Test Pressure
1. Oil level must be between the LOW and FULL
mark on dipstick. If oil level is low, check for leaks
and add oil to FULL mark.
2. Remove pressure switch or 1/8” NPTF plug in oil
filter adapter.
3. Install oil pressure gauge (1),
Fig. 49
.
4. Start engine. Run for approximately
5 minutes
.
5. Check oil pressure at
3000 RPM
.
Oil Pressure – measured @
70º F (21º C)
:
•
10~50 psi (0.7~3.5 Bar)
Fig. 49
OIL PRESSURE TROUBLESHOOTING GUIDE
Engine RPM Too Low
Wrong Viscosity or Diluted Oil
L
Oil
Low Oil Level
Low Oil
Pressure
Broken Pressure Relief Spring
Pressure
Missing Pressure Relief Plunger
Worn Bearings
Damaged or Defective Oil Pump
Hi h Oil
Wrong Viscosity Oil
High Oil
Pressure
Plugged Oil Galleries
Pressure
Stuck Pressure Relief Plunger
Panel Kit With Key Switch and Solenoid
Some V-Twin engines are equipped with a rotary key
switch panel and starter solenoid. See wiring
diagram for details.
Testing Key Switch
The rotary key switch can be checked for continuity
using the Digital Multimeter #
19464
.
Remove carburetor cover with key switch.
Disconnect wiring harness from key switch.
With meter selector switch in
+
)
)
)
))
(DIODE TEST)
position, and test leads attached to switch terminals,
a
CONTINUOUS TONE
indicates continuity
(complete circuit).
NO TONE
indicates no continuity
(open circuit). An open circuit will be displayed as
OL
.
1. Insert RED test lead into
V
receptacle in meter.
2. Insert BLACK test lead into
COM
receptacle.
3. Rotate meter selector to
+
)
)
)
))
(DIODE TEST)
position.
4. Meter must indicate
CONTINUITY
between
terminals with key switch in position shown. See
number sequence of terminals shown in
Fig. 50
.
