2-24 PERIODIC MAINTENANCE
OIL PRESSURE CHECK
Check the oil pressure periodically. This will give a good indication of the condition of the moving parts.
OIL PRESSURE SPECIFICATION
If the oil pressure is lower or higher than the specification, the following causes may be considered.
LOW OIL PRESSURE
* Clogged oil filter
* Oil leakage from the oil passage
* Damaged O-ring
* Defective oil pump
* Combination of above items
HIGH OIL PRESSURE
* Engine oil viscosity is too high
* Clogged oil passage
* Combination of the above items
OIL PRESSURE TEST PROCEDURE
Check the oil pressure in the following manner.
• Support the motorcycle with the center stand.
• Remove the main gallery plug

1.
• Install the oil pressure gauge.
% 09915-70610: Adaptor
09915-74511: Oil pressure gauge
• Remove the front frame cover. ("8-8)
• Connect the multi-circuit tester to the high-tension cord.
% 09900-25008: Multi-circuit tester set
• Warm up the engine as follows:
Summer 10 min. at 2 000 r/min.
Winter 20 min. at 2 000 r/min.
• After warming up, increase the engine speed to 3 000 r/min.
(with the tachometer), and read the oil pressure gauge.
# Oil gallery plug: 21 N·m (2.1 kgf-m)
Above 170 kPa (1.7 kgf/cm
2
)
at 3 000 r/min., Oil temp. at 60 °C
Below 230 kPa (2.3 kgf/cm
2
)
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