Kawasaki Ninja Service Manual: Valve-to-Guide Clearance Measurement (Wobble Method)

Kawasaki Ninja Service Manual / Engine Top End / Valves / Valve-to-Guide Clearance Measurement (Wobble Method)

If a small bore gauge is not available, inspect the valve guide wear by measuring the valve to valve guide clearance with the wobble method as indicated below.

Insert a new valve [A] into the guide [B] and set a dial gauge against the stem perpendicular to it as close as possible to the cylinder head mating surface.
Move the stem back and forth [C] to measure valve/valve guide clearance.
Repeat the measurement in a direction at a right angle to the first.

If the reading exceeds the service limit, replace the guide.

Valve-to-Guide Clearance Measurement (Wobble Method)

NOTE

The reading is not actual valve/valve guide clearance because the measuring point is above the guide.

Valve/Valve Guide Clearance (Wobble Method) Standard:

Exhaust 0.03 0.12 mm (0.0012
0.0047 in.)

Intake 0.03 0.13 mm (0.0012
0.0051 in.)

Service Limit:

Exhaust 0.34 mm (0.013 in.)

Intake 0.36 mm (0.014 in.)

Valve Guide Installation

Apply engine oil to the valve guide outer surface before installation. Heat the area around the valve guide hole to about 120 150°C (248 302°F). NOTICE Do not heat the cylinder head ...

Valve Seat Inspection

Remove the valve (see Valve Removal). Check the valve seating surface [A] between the valve [B] and valve seat [C]. Measure the outside diameter [D] of the seating pattern on the valve seat ...

Other materials:

Tire Repair
Currently two types of repair for tubeless tires have come into wide use. One type is called a temporary (external) repair which can be carried out without removing the tire from the rim, and the other type is called permanent (internal) repair which requires tire removal. It is generally unders ...

Separator Operation Test
WARNINGGasoline is extremely flammable and can be explosive under certain conditions. Turn the ignition switch OFF. Do not smoke. Make sure the area is well-ventilated and free from any source of flame or sparks; this includes any appliance with a pilot light. ...

Drive Chain
The drive chain slack and lubrication must be checked each day before riding the motorcycle and must be maintained in accordance with the Periodic Maintenance Chart for safety and to prevent excessive wear. If the chain becomes badly worn or maladjusted - either too loose or too tight - the c ...