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:

Open circuit check
Possible causes for the open circuit are as follows. As the cause can exist in the connector/coupler or terminal, they need to be checked carefully. Loose connection of connector/coupler. Poor contact of terminal (due to dirt, corrosion or rust, poor contact tension, entry of f ...

Ap sensor removal and installation
Removal Remove the front seat. Refer to “exterior parts removal and installation” in section 9d (page 9d- 6). Disconnect the starter relay (1) from the holder. Disconnect the coupler (2) and remove the ap sensor (3). Installation Install the ap sensor in the rever ...

Gearshift shaft construction
Gearshift shaft Washer Snap ring Gearshift shaft return spring Gearshift cam drive plate Gearshift plate return spring 8.5 N·m (0.85 Kgf-m, 6.0 Lbf-ft) 13 N·m (1.3 Kgf-m, 9.5 Lbf-ft) 19 N·m (1.9 Kgf-m, 13.5 Lbf-ft) Apply ...