Oil Pressure Measurement - Yamaha F100A Service Manual

INSP
ADJ
GENERAL
5. Measure:
Compression pressure
Below minimum compression pres-
sure → Inspect valve clearance, valve
face, valve seat, piston rings, cylinder
sleeve, piston, cylinder head gasket
and cylinder head.
Compression pressure:
Minimum:
950 kPa (9.5 kg/cm
Measurement steps:
Remove the lock plate from the engine
stop lanyard switch on the remote
control box.
With the throttle wide open, crank the
engine setting the main switch in the
START position until the reading on
the compression gauge stabilizes.
6. Remove:
Compression gauge
7. Install:
Spark plug(-s)

Oil pressure measurement

1. Warm-up:
Engine
2. Remove:
Oil pressure switch
3. Install:
Oil pressure gauge 1
(into the oil pressure switch hole)
NOTE:
Use a pressure gauge with the range of 0 to
2
10 kg/cm and an adopter with a PT 1/8
thread.
3-19
E
2
, 135 psi)