Suzuki RM-Z450 - Oil Pressure Check; Oil Pressure Test Procedure

2-36 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:
Low or high oil pressure can indicate any of the following conditions:
LOW OIL PRESSURE
* Clogged oil filter
* Oil leakage from the oil passage
* Damaged oil seal
* Defective oil pump
* Combination of the above items
HIGH OIL PRESSURE
* Engine oil viscosity is too high
* Clogged oil passage
* Combination of the above items
OIL PRESSURE TEST PROCEDURE
• Connect the multi-circuit tester or electric tachometer to the
high-tension cord.
" 09900-25008: Multi-circuit tester set
• Remove the oil gallery plug

1.
• Install the oil pressure gauge and adaptor into the oil gallery.
• Warm up the engine.
• After warming up the engine, increase the engine speed to
4 000 r/min (observe the tachometer), and read the oil pres-
sure gauge.
• Install the oil gallery plug

1.
$ Oil gallery plug: 10 N·m (1.0 kgf-m, 7.0 lb-ft)
" 09915-74511: Oil pressure gauge
09940-40211: Adaptor
50 kPa (0.5 kgf/cm², 7.1 psi) at 4 000 r/min, oil temp. at 50 °C (122 °F)
% WARNING
Do not remove the oil pressure gauge adapter when
the engine is hot. Wait until engine cools.