Suzuki GSX-R 1000 Service Manual: Thermostat inspection

Suzuki GSX-R 1000 Service Manual / Engine / Engine cooling system / Repair instructions / Thermostat inspection

Inspect the thermostat in the following procedures:

remove the thermostat. Refer to “thermostat removal and installation” .
Inspect the thermostat pellet for signs of cracking.

Suzuki GSX-R. Thermostat inspection

Test the thermostat at the bench for control action.

Caution

do not contact the thermostat (1) and column thermometer (2) with a pan.
As the thermostat operating response to water temperature change is gradual, do not raise water temperature too quickly.
The thermostat with its valve open even slightly under normal temperature must be replaced.

Immerse the thermostat (1) in the water contained in a beaker and note that the immersed thermostat is in suspension.
Heat the water by placing the beaker on a stove and observe the rising temperature on a thermometer (2)

Suzuki GSX-R. Thermostat inspection

String
Water

Read the thermometer just when opening the thermostat. If this reading, which is the temperature level at which the thermostat valve begins to open, is out of the standard value, replace the thermostat with a new one.

Thermostat valve opening temperature standard: approx. 82 °C (180 °f)

Keep on heating the water to raise its temperature.
Just when the water temperature reaches specified value, the thermostat valve should have been lifted by at least 8 mm (0.31 In). A thermostat failing to satisfy either of the two requirements (start-to-open temperature and valve lift) must be replaced.

Thermostat valve lift “a” standard: over 8 mm (0.31 In) and at 95 °c (203 °f)

Suzuki GSX-R. Thermostat inspection

Install the thermostat. Refer to “thermostat removal and installation” .

Thermostat removal and installation

Removal Drain a small amount of engine coolant. Refer to “cooling system inspection” in section 0b . Lift and support the fuel tank. Refer to “fuel tank removal and installation” in s ...

Water pump components

Impeller Mechanical seal Oil seal O-ring O-ring 8 N·m (0.8 Kgf-n, 6.0 Ib-ft) 10 N·m (1.0 Kgf-n, 7.0 Ib-ft) 6 N·m (0.6 Kgf-n, 4.5 Ib-ft) ...

Other materials:

Pair system inspection
Pair hose Lift and support the fuel tank with the prop stay. Refer to “fuel tank removal and installation” in section 1g . Remove the air cleaner box. Refer to “air cleaner box removal and installation” in section 1d . Inspect the pair hoses for wear or damage. If it is worn or da ...

Gearshift shaft / gearshift cam plate components
Gearshift shaft Gearshift cam drive plate Gearshift cam plate Gearshift cam stopper 19 N·m (1.9 Kgf-m, 13.5 Lbf-ft) 13 N·m (1.3 Kgf-m, 9.5 Lbf-ft) 8.5 N·m (0.85 Kgf-m, 6.0 Lbf-ft) Apply grease to oil seal lip. Apply thread l ...

Front wheel related parts inspection
Refer to “front wheel assembly removal and installation” . Tire Refer to “tire inspection” in section 0b . Front brake disc Refer to “front brake disc inspection” in section 4b . Dust seal Inspect the lip of dust seals for wear or damage. If any defects are found, replace the dust seal ...