Oil Pressure Check; Oil Pressure Test Procedure - Suzuki UY125 Service Manual

OIL PRESSURE CHECK

Check the oil pressure periodically. This will give a good indication of the condition of the moving parts.
OIL PRESSURE SPECISFICATION
18 – 40 kPa (0.18 – 0.40 kgf/cm²) at 3 000 rpm, Oil temp. at 60 °C.
If the oil pressure is lower or higher than 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 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 main oil gallery plug 1.
• Install the oil pressure gauge and adaptor into the main oil
gallery.
• Warm up the engine as follows:
Summer: 10 minutes at 2 000 rpm
Winter: 20 minutes at 2 000 rpm
• After warming up the engine, increase the engine speed to
3 000 rpm (observe the tachometer), and read the oil pres-
sure gauge.
$ 09915-74511: Oil pressure gauge
09915-74531: Adaptor
09900-26006: Tachometer
% Main gallery plug: 12 N·m (1.2 kgf-m)
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PERIODIC MAINTENANCE 2-21