Yamaha F25 [180/444] Oil filter cartridge thermostat and exhaust cover

Yamaha F25 [180/444] Oil filter cartridge thermostat and exhaust cover
5-32
POWR
E
OIL FILTER CARTRIDGE, THERMOSTAT, AND
EXHAUST COVER
SERVICE POINTS
Thermostat inspection
1. Measure:
Valve operating temperature
Valve lift
Out of specification Replace the
thermostat.
Water temperature Valve lift
Below
60 ˚C (140 ˚F)
0 mm
(0 in)
Above
70 ˚C (158 ˚F)
Min. 3 mm
(0.12 in)
Measuring steps:
Suspend the thermostat in a container
filled with water.
Slowly heat the water.
Place a thermometer in the water.
While stirring the water, observe the
thermometers indicated temperature.

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