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:

Starter motor runs but does not crank the engine
The starter motor runs when the transmission is in neutral, but does not run when the transmission is in any position other than neutral, with the side-stand up. Step Action Yes No 1 Check the side-stand switch. Refer to “side-stand / ignition inte ...

Engine oil and filter replacement
Replace engine oil initially at 1 000 km (600 miles, 2 months) and every 6 000 km (4 000 miles, 12 months) thereafter Replace oil filter initially at 1 000 km (600 miles, 2 months) and every 18 000 km (11 000 miles, 36 months) thereafter Oil should be changed while the engine is warm. Oil filt ...

Using the testers
Incorrectly connecting the (+) and (.) Probes may cause the inside of the tester to be burned. If the voltage and current are not known, make measurements using the highest range. When measuring the resistance with the multi-circuit tester (1), ∞ will be shown as 10.00 ...