Suzuki GSX-R 1000 Service Manual: Diagnostic information and procedures
Engine mechanical symptom diagnosis
Refer to “engine symptom diagnosis” in section 1a .
Compression pressure check
The compression pressure reading of a cylinder is a
good indicator of its internal condition.
The decision to overhaul the cylinder is often based on
the results of a compression test. Periodic maintenance
records kept at your dealership should include
compression readings for each maintenance service.
Note
- before checking the engine for
compression pressure, make sure that the
cylinder head nuts are tightened to the
specified torque values and the valves are
properly adjusted.
- Make sure that the battery is in fullycharged
condition.
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- Warm up the engine.
- Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
- Remove the air cleaner box. Refer to “air cleaner box removal and
installation” .
- Remove all the spark plugs. Refer to “ignition coil and spark plug
removal and installation” in section 1h .
- Install the compression gauge and adaptor in the
spark plug hole. Make sure that the connection is
tight.
Special tool
(a): 09915–64512 (compression
gauge)
(b): 09915–63311 (compression gauge
attachment)

- Keep the throttle grip in the fully-opened position.

- Press the starter button and crank the engine for a
few seconds. Record the maximum gauge reading
as the cylinder compression.
- Repeat this procedure with the other cylinders.
Compression pressure specification

Low compression pressure can indicate any of
the following conditions:
- excessively worn cylinder walls
- worn piston or piston rings
- piston rings stuck in grooves
- poor valve seating
- ruptured or otherwise defective cylinder head
gasket
Overhaul the engine in the following cases:
- compression pressure in one of the cylinders is 1
000 kpa (10 kgf/cm2, 142 psi) and less.
- The difference in compression pressure between
any two cylinders is 200 kpa (2 kgf/cm2, 28 psi)
and more.
- All compression pressure readings are below 1
400 kpa (14 kgf/cm2, 199 psi) even when they
measure 1 000 kpa (10 kgf/cm2, 142 psi) and
more.
- After checking the compression pressure, reinstall
the removed parts.
Throttle cable no. 1
Throttle cable no. 2
Clutch cablev
Front brake hose
Pass
the throttle cables in front of the front brake hose.
Pass the
clutch ca ...
Other materials:
Special tools and equipment
Special tool
...
Specifications
Tightening torque specifications
Note
the specified tightening torque is described in the following.
“Rear view mirror construction”
Reference: for the tightening torque of fastener not specified in this
section, refer to “tightening torque list” in section 0c . ...
Battery current leakage inspection
Inspect the battery current leakage in the following
procedures:
turn the ignition switch off.
Remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Disconnect the battery (–) lead wire.
Measure the current betwee ...