PERIODIC MAINTENANCE 2-19
OIL PRESSURE
Oil pressure (at normal operating temp.):
200 – 500 kPa (2.0 – 5.0 kg/cm
2
, 28 – 71 psi)
at 3000 r/min.
NOTE:
The figure shown above is a guideline only, not an absolute ser-
vice limit.
If oil pressure is lower or higher than specification, the following
causes may be considered.
(See page 6-45 for oil passage locations.)
Low oil pressure
• Clogged oil filter
• Leakage from oil passages
• Defective oil pump
• Defective oil pressure regulator
• Damage O-ring
• Combination of above items
High oil pressure
• Using an engine oil of too high viscosity
• Clogged oil passage
• Clogged oil pressure regulator
• Combination of above items
TEST PROCEDURE
1. Check the engine oil level.
2. Remove the plate 1 by sliding it upward.
3. Remove CDI unit 2 from electric parts holder.
4. Remove the two (2) bolts 3 securing ignition coil.
5. Loosen screw and disconnect blue lead wire 4 from oil
pressure switch 5.
Remove the oil pressure switch.
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