Suzuki GSX-R 1000 Service Manual: 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.

- 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.
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- 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)

- 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)

- Install the thermostat. Refer to “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 ...
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:
Valve clearance inspection and adjustment
Inspect valve clearance
initially every 24 000 km (14 500 miles, 48 months)
Inspection
Valve clearance adjustment must be checked and
adjusted, a) at the time of periodic inspection, b) when
the valve mechanism is serviced, and c) when the
camshafts are removed for servicing.
Lift an ...
DTC “c41” (p2505): ecm power input signal
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C41/P2505
No voltage is applied to the ecm.
Lead wire/coupler connection of ecm terminal to fuel
fuse.
Fuel fuse.
Wiring diagram
Troubleshooting
C ...
Generator inspection
Generator coil resistance
Remove the left side cowling. Refer to “exterior parts removal and
installation” in section 9d .
Disconnect the generator coupler (1).
Measure the resistance between the three lead
wires.
If the resistance is out of specified value, replace the
...