Radiator - Removal And Installation - Yamaha TDM850 User Manual

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3»6 Cooling system
6.6b ... and withdraw the thermostat
how it fits (see illustration). Discard the cover
O-ring as a new one must be used.
Check
7 Examine the thermostat
carrying out the test. If it remains in the open
position at room temperature, it should be
renewed.
8 Suspend the thermostat by a piece of wire in a
container of cold water. Place a thermometer in
the water so that the bulb is close to the
thermostat (see illustration). Heat the water,
noting the temperature when the thermostat
opens, and compare the result
6.11 Fit the cover using a new O-ring
7.3a Detach the upper.
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with the specifications given at the beginning of
the Chapter. Also check the amount the valve
opens after it has been heated at 95°C for a few
minutes and compare the measurement to the
visually before
specifications. If the readings obtained differ from
those given, the thermostat is faulty and must be
renewed.
9 In the event of thermostat failure, as an
emergency measure only, it can be removed
and the machine used without it. Note: Take
care when starting the engine from cold as it
will take much longer than usual to warm up.
Ensure that a new unit is installed as soon as
possible.
Installation
10 Fit the thermostat into the housing, making
sure that it seats correctly and that the hole is at
the top (see illustration 6.6b).
11 Fit a new O-ring onto the cover, using a dab
of grease to keep it in place if required (see
illustration). Fit the cover onto the housing, then
install the two bolts and tighten them to the
torque setting specified at the beginning of the
Chapter (see illustrations 6.6a).
12 Install the thermostat housing and tighten the
bolt to the
illustrations 4.9b and c). Connect the hoses
7.3b ... and lower radiator hoses (early
TDM shown)...
THERMOMETER
6.8 Thermostat testing set-up
specified torque setting (see
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THERMOSTAT
and tighten the clamps securely. Also connect
the wiring connectors, not forgetting the earth
lead, where fitted. 13 Refill the cooling system
(see Chapter 1).
7 Radiator -
removal and installation
Removal
A Warning: The engine must be
completely cool before carrying out
this procedure.
1 Remove the fairing side panels on
TDM and XTZ models, and the fairing on TRX
models (see Chapter 8). Remove the fuel tank,
and on TDM and TRX models, the air filter
housing (see Chapter 4). Drain the cooling system
(see Chapter 1).
2 Trace the fan motor wiring and disconnect it at
the connector (see illustrations 4.3a and b).
3 Slacken the clamps securing the radiator
hoses and detach them from the radiator (see
illustrations).
4 Unscrew the bolts securing the radiator, noting
the arrangement of the collars and rubber
grommets, and carefully manoeuvre
7.3c ... and on TDM and TRX models the
overflow hose (arrowed)
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