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Suzuki GSX-R 1000 Service Manual: Diagnostic information and procedures

Suzuki GSX-R 1000 Service Manual / Engine / Engine mechanical / 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.
  1. Warm up the engine.
  2.  Lift and support the fuel tank. Refer to fuel tank removal and installation in section 1g (page 1g- 9).
  3.  Remove the air cleaner box. Refer to air cleaner box removal and installation .
  4.  Remove all the spark plugs. Refer to ignition coil and spark plug removal and installation in section 1h .
  5.  Install the compression gauge and adaptor in the spark plug hole. Make sure that the connection is tight.

Special tool
(a): 0991564512 (compression
gauge)
(b): 0991563311 (compression gauge
attachment)

Suzuki GSX-R. Compression pressure check


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

Suzuki GSX-R. Compression pressure check


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

Compression pressure specification

Suzuki GSX-R. Compression pressure check


Low compression pressure can indicate any of the following conditions:

Overhaul the engine in the following cases:

  1. After checking the compression pressure, reinstall the removed parts.
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