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Suzuki GSX-R 1000 Service Manual: Piston and piston ring inspection

Refer to “piston ring removal and installation” .

Piston diameter

Measure the piston diameter using the micrometer at 15 mm (0.6 In) “a” from the skirt end. If the piston diameter is less than the service limit, replace the piston.

Special tool (a): 09900–20203 (micrometer (50 –
75 mm))

Piston diameter service limit: 74.380 Mm (2.9283 In)

Suzuki GSX-R. Piston diameter


Suzuki GSX-R. Piston diameter


Piston-to-cylinder clearance

Subtract the piston diameter from the cylinder bore diameter. If the piston-to-cylinder clearance exceeds the service limit, replace both the cylinder and the piston.

Piston-to-cylinder clearance service limit: 0.120 Mm (0.0047 In)

Piston ring-to-groove clearance

Measure the side clearances of the 1st and 2nd piston rings using the thickness gauge. If any of the clearances exceed the limit, replace both the piston and piston rings.

Special tool (a): 09900–20803 (thickness gauge)
(b): 09900–20205 (micrometer (0 – 25
mm))

Piston ring-to-groove clearance service limit (1st): 0.180 Mm (0.0071 In) service limit (2nd): 0.150 Mm (0.0059 In)

Piston ring groove width standard (1st): 0.83 – 0.85 Mm (0.0327 – 0.0335 In) standard (1st): 1.30 – 1.32 Mm (0.0512 – 0.0520 In) standard (2nd): 0.81 – 0.83 Mm (0.0319 – 0.0327 In) standard (oil): 1.51 – 1.53 Mm (0.0594 – 0.0602 In)

Piston ring thickness standard (1st): 0.76 – 0.81 Mm (0.0299 – 0.0319 In) standard (1st): 1.08 – 1.10 Mm (0.0425 – 0.0433 In) standard (2nd): 0.77 – 0.79 Mm (0.0303 – 0.0311 In)

Suzuki GSX-R. Piston diameter


Suzuki GSX-R. Piston diameter


Piston ring free end gap and piston ring end gap

Measure the piston ring free end gap using vernier calipers. Next, fit the piston ring squarely into the cylinder and measure the piston ring end gap using the thickness gauge. If any of the measurements exceed the service limit, replace the piston ring with a new one.

Special tool (a): 09900–20102 (vernier calipers
(200 mm))

Piston ring free end gap service limit (1st): 5.6 Mm (0.22 In) service limit (2nd): 6.4 Mm (0.25 In)

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


Piston ring end gap service limit (1st): 0.50 Mm (0.020 In) service limit (2nd): 0.50 Mm (0.020 In)

Suzuki GSX-R. Piston ring free end gap and piston ring end gap


Suzuki GSX-R. Piston ring free end gap and piston ring end gap


Piston pin and pin bore

Measure the piston pin bore inside diameter using the small bore gauge. If either is out of specification or the difference between these measurements surpass limits, replace the piston.

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

Piston pin bore service limit: 15.030 Mm (0.5917 In)

Suzuki GSX-R. Piston pin and pin bore


Measure the piston pin outside diameter at three positions using the micrometer. If any of the measurements are out of specification, replace the piston pin.

Special tool (c): 09900–20205 (micrometer (0 – 25
mm))

Piston pin o.D.

Service limit: 14.980 Mm (0.5898 In)

Suzuki GSX-R. Piston pin and pin bore


Piston ring removal and installation
Removal Remove the piston. Refer to “engine bottom side disassembly” .  Carefully spread the ring opening with your thumbs and then push up the opposite side of the 1st ring to remove i ...

Balancer shaft disassembly and assembly
Refer to “engine bottom side disassembly” (page 1d- 49). Refer to “engine bottom side assembly” . Disassembly Remove the balancer shaft. Refer to “engine bottom side disassembly” .  Re ...

Other materials:

Specifications
Tightening torque specifications Note the specified tightening torque is described in the following. “Chassis bolt and nut inspection” Reference: for the tightening torque of fastener not specified in this section, refer to “tightening torque list” in section 0c . ...

The sport of motorcycling
Your motorcycle and this owner's manual have been designed by people like you who enjoy motorcycling. People become motorcyclists for many reasons. For starters, street riding is fun and invigorating. But no matter why you became a motorcyclist, or how experienced you are, you will eventu ...

Wheel / tire / air valve inspection and cleaning
Refer to “tire removal and installation” . Wheel Wipe the wheel clean and check for the following points:  distortion and crack  any flaws and scratches at the bead seating area.  Wheel rim runout. Refer to “front wheel related parts inspection”  and “rear wheel rela ...

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