Suzuki GSX-R 1000 Service Manual: Spark plug inspection and cleaning

Suzuki GSX-R 1000 Service Manual / General information / Maintenance and lubrication / Repair instructions / Spark plug inspection and cleaning

Inspect spark plug every 6 000 km (4 000 miles, 12 months)

Heat range

Remove the spark plugs. Refer to “ignition coil and spark plug removal and installation” in section 1h .
Check spark plug heat range by observing electrode color. If the electrode of the spark plug is wet appearing or dark color, replace the spark plug with hotter type one. If it is white or glazed appearing, replace the spark plug with colder type one.

Heat range

Suzuki GSX-R. Heat range

After finishing the spark plug inspection, reinstall the removed parts.

Tightening torque

Spark plug gap spark plug: 11 n·m (1.1 Kgf-m, 8.0 Lbf-ft)

Remove the spark plugs. Refer to “ignition coil and spark plug removal and installation” in section 1h .
Measure the spark plug gap using a wire gauge. If it is not within the specification, replace the spark plug.

Caution

To prevent the damage of iridium center electrode, use a wire gauge to check the gap.
Never adjust the spark plug gap.

Spark plug gap 0.8 – 0.9 Mm (0.031 – 0.035 In)

Suzuki GSX-R. Spark plug gap

After finishing the spark plug inspection, reinstall the removed parts.

Tightening torque spark plug: 11 n·m (1.1 Kgf-m, 8.0 Lbf-ft)

Electrodes condition

Remove the spark plugs. Refer to “ignition coil and spark plug removal and installation” in section 1h .
Check the worn or burnt condition of the electrodes.
If it is extremely worn or burnt, replace the spark plug. And also replace the spark plug if it has a broken insulator, or damaged thread.

Caution

confirm the thread size and reach when replacing the plug. If the reach is too short, carbon will be deposited on the screw portion of the plug hole and engine damage may result.

After finishing the spark plug inspection, reinstall the removed parts.

Tightening torque spark plug: 11 n·m (1.1 Kgf-m, 8.0 Lbf-ft)

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 ...

Fuel line inspection

Inspect fuel line every 6 000 km (4 000 miles, 12 months) Inspect the fuel line in the following procedures: lift and support the fuel tank. Refer to “fuel tank removal and installation” ...

Other materials:

Fuel tank cap
To open the fuel tank cap, insert the ignition key into the lock and turn it clockwise. With the key inserted, lift up with the key and open the fuel tank cap. To close the fuel tank cap, push the cap down firmly with the key in the cap lock. Fuel level Fi ller neck Wa ...

Drive chain related components
Drive chain Engine sprocket Rear sprocket Dust seal Bearing Retainer Sprocket mounting drum Wheel damper 145 N·m (14.5 Kgf-m, 105.0 Lbf-ft) 60 N·m (6.0 Kgf-m, 43.0 Lbf-ft) Apply grease Apply thread lock to thread p ...

Ignition system check
Remove the spark plugs and reattach them to the spark plug caps. Put the engine stop switch in the "" position and ignition switch in the "on" position. While holding a spark plug with its base firmly against the engine, push the electric starter butt ...