Oil Pressure Measurement
Remove the engine guard (see Engine Guard Re-
moval/Installation in the Frame chapter).
Remove the bolts [A] and oil filter cap [B].
Move the spring and the O-ring of the oil filter cap to the
oil pressure cap.
Special Tool - Oil Pressure Cap: 57001-1651
Attach the oil pressure cap [A], the oil pressure gauge
adapter [B] and the oil pressure gauge [C].
Special Tools - Oil Pressure Gauge, 5 kgf/cm²: 57001-125
Oil Pressure Gauge Adapter, M10 × 1.25:
Oil Pressure Cap: 57001-1651
Start the engine and warm up the engine thoroughly.
Run the engine at the specified speed, and read the oil
If the oil pressure is much lower than the standard, check
the oil pump, and crankshaft oil seal of the clutch cover.
If the value is much higher than the standard, check the
oil pump screen and the oil filter first, and oil passages for
dirt or clogging.
88 ∼ 147 kPa (0.9 ∼ 1.5 kgf/cm², 13 ∼ 21
psi) at 4 000 r/min (rpm), Oil Temperature
Stop the engine, and remove the oil pressure cap, gauge
Hot oil can cause severe burns. Beware of hot en-
gine oil that will drain through the oil passage when
the gauge adapter is removed.
Install the oil filter cap (see Oil Filter Replacement in the
Periodic Maintenance chapter).
ENGINE LUBRICATION SYSTEM 6-11