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Suzuki GSX-R 1000 Service Manual: Conrod and crankshaft inspection

Refer to “engine bottom side disassembly” (page 1d- 49).

Refer to “engine bottom side assembly” .

Conrod small end I.D.

Measure the conrod small end inside diameter using the small bore gauge.

If the conrod small end inside diameter exceeds the service limit, replace the conrod.

Special tool (a): 09900–20602 (dial gauge)
(b): 09900–22401 (small bore gauge
(10 – 18 mm))

Conrod small end i.D.

Service limit: 15.040 Mm (0.5921 In)

Suzuki GSX-R. Conrod small end i.D.


Conrod big end side clearance

  1. Check the conrod big end side clearance using the thickness gauge.

Special tool (a): 09900–20803 (thickness gauge)


Conrod big end side clearance service limit: 0.30 Mm (0.012 In)

Suzuki GSX-R. Conrod big end side clearance


  1. If the clearance exceeds the limit, remove the conrod and measure the conrod big end width and crank pin width. Refer to “engine bottom side assembly” . If any of the measurements are out of specification, replace the conrod or crankshaft.

Special tool (b): 09900–20205 (micrometer (0 –
25 mm)) (c): 09900–20605 (dial calipers (10
– 34 mm))

Conrod big end width standard: 19.95 – 20.00 Mm (0.7854 – 0.7874 In)

Crank pin width standard: 20.10 – 20.15 Mm (0.7913 – 0.7933 In)

Suzuki GSX-R. Conrod big end side clearance


Crankshaft runout

Support the crankshaft using v-blocks as shown, with the two end journals resting on the blocks. Set up the dial gauge as shown, and rotate the crankshaft slowly to read the runout. Replace the crankshaft if the runout exceeds the service limit.

Special tool (a): 09900–20607 (dial gauge)
(b): 09900–20701 (dial gauge chuck)
(c): 09900–21304 (v blocks)


Crankshaft runout service limit: 0.05 Mm (0.002 In)

Suzuki GSX-R. Crankshaft runout


Conrod crank pin bearing removal and installation
Refer to “engine bottom side disassembly” (page 1d- 49). Refer to “engine bottom side assembly” . Removal Remove the conrod crank pin bearings (1). Note  do not remove the beari ...

Conrod crank pin bearing inspection and selection
Refer to “engine bottom side disassembly” (page 1d- 49). Refer to “engine bottom side assembly” . Inspection Inspect the bearing surfaces for any signs of fusion, pitting, burn or flaws. If ...

Other materials:

Side stand
An interlock switch is provided to cut off the ignition circuit when the side stand is down and the transmission is in any gear other than neutral. The side stand/ignition interlock switch works as follows:  if the side stand is down and the transmission is in gear, the engine ...

Warning / caution / note
Please read this manual and follow its instructions carefully. To emphasize special information, the symbol and the words warning, caution and note have special meanings. Pay special attention to the messages highlighted by these signal words. Indicates a potential hazard that could ...

Ect sensor removal and installation
Removal Remove the left side cowling. Refer to “exterior parts removal and installation” in section 9d .  Drain engine coolant. Refer to “cooling system inspection” in section 0b .  Disconnect the coupler and remove the ect sensor (1). Caution take special care ...

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