Polaris Virage TX 2000 Service Manual page 159

ENGINE
Thermostat and Coolant Filter
Thermostat Pop Off Assembly
If low end performance of the watercraft begins to dete
riorate, and the jet pump intake area is free of debris and
weeds; or if the overheat alarm sounds, the thermostat
pop off assembly should be checked for debris and
cleaned. Also inspect the thermostat pop off assembly
if the watercraft has been stored for more than 30 days
or has been used in salt water. To do this, use a 3/16"
(.5 cm) Allen wrench and a flat screwdriver.
If the thermostat pop off assembly is reassembled incor
rectly severe engine damage will result within a very
short period of operation.
NOTE: Do not perform this maintenance while the wa
tercraft is in the water. The thermostat pop off assembly
is under tension from an internal spring. When the
screws are removed, the assembly will come apart
quickly if not held together firmly.
1 . Remove screws while holding thermostat pop off
assembly firmly together. Carefully take assembly
apart. Be careful not to lose any parts.
2 . Check thermostat pop off assembly for debris, such
as seaweed, and clean it out.
3 . Check condition of rubber elements. Also check
thermostat and housing for corrosion. Replace any
parts that appear in poor condition.
4 . Assemble thermostat pop off assembly in correct
sequence. Assemble carefully to ensure proper
alignment between all internal parts and be sure the
gasket or O-ring is properly positioned. The arrow
indicates the direction of water flow (away from
engine).
5 . Attach thermostat pop off assembly using screws
removed in step one and Loctite™ 242 (blue).
Internal Pop-off Valve
(Longer End Towards
Engine)^ Qasket
Spring
Thermostat
Thermostat
Base
Gasket
Genesis FFI'
3/00 4.48
Polaris Sales Inc.