Thermostat - PGO Tigra AF-125BAE Service Manual

Thermostat

Function: Control temperature of water coolant for the engine running at the best temperature.

Trouble:
Jam:
Thermostat "ON": Warm-up too long; engine temperature unstable during a drive.
Thermostat "OFF": Water coolant too hot during a drive; temperature displayed on the thermometer
high.
Note: Check the thermostat by immersing it into hot water.

Disassembly:
Remove 2 set screws on the thermostat cover and take out the
thermostat.

Installation:
Install the thermostat in a reverse order.
∆
Put the thermostat into the cover and
install the assembly into the cylinder
head.

Check:
Check the thermostat by immersing it into hot water.
Temperature
85℃±0.2
>95℃
Valve Travel
0.05mm
3.5+1.0mm
Cooling System 12
Waterproof rubber on the thermostat
not deformed or damaged
84