Oil Pressure Check; Oil Pressure Test Procedure - Suzuki DR-Z70 Service Manual

2-19 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
15 – 40 kPa (0.15 – 0.40 kgf/cm², 2.1 – 5.7 psi) at 3 000 r/min, Oil temp. at 60 °C (140 °F).
If the oil pressure is lower or higher than specification, the following causes may be considered.
LOW OIL PRESSURE
* Oil leakage from the oil passage
* Damaged O-ring
* 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 a tachometer to the high-tension cord.
• Remove the exhaust pipe cover 1 .
• Remove the main oil gallery plug 2 .
• Install the oil pressure gauge and adaptor to the main oil gal-
lery.
• Warm up the engine as follows:
Summer: 10 minutes at 2 000 r/min
Winter: 20 minutes at 2 000 r/min
• After warming up the engine, increase the engine speed to
3 000 r/min (observe the tachometer), and read the oil pres-
sure gauge.
09915-74511: Oil pressure gauge
09915-74533: Adaptor
09915-72410: Adaptor
09900-26006: Tachometer
Main oil gallery plug: 10 N·m (1.0 kgf-m, 7.0 lb-ft)