Kawasaki Ninja Service Manual: Seat Cutter Operation Care

Kawasaki Ninja Service Manual / Engine Top End / Valves / Valve Seat Repair / Seat Cutter Operation Care

1. This valve seat cutter is developed to grind the valve for repair. Therefore the cutter must not be used for other purposes than seat repair.

2. Do not drop or shock the valve seat cutter, or the diamond particles may fall off.

3. Do not fail to apply engine oil to the valve seat cutter before grinding the seat surface. Also wash off ground particles sticking to the cutter with washing oil.

NOTE

Do not use a wire brush to remove the metal particles from the cutter. It will take off the diamond particles.

4. Setting the valve seat cutter holder in position, operate the cutter in one hand. Do not apply too much force to the diamond portion.

NOTE

Prior to grinding, apply engine oil to the cutter and during the operation, wash off any ground particles sticking to the cutter with washing oil

5. After use, wash it with washing oil and apply thin layer of engine oil before storing.

Marks Stamped on the Cutter

The marks stamped on the back of the cutter [A] represent the following.

60° ........................... Cutter angle [B]

37.5 .......................
Outer diameter of cutter [C]

Marks Stamped on the Cutter


Valve Seat Repair
Repair the valve seat with the valve seat cutters [A]. Special Tools - Valve Seat Cutter Holder Bar [B]: 57001 -1128 Valve Seat Cutter Holder, 4.5 [C]: 57001 -1330 [For Exhaust Valve Seat] V ...

Operating Procedures
Clean the seat area carefully. Coat the seat with machinist’s dye. Fit a 45° cutter into the holder and slide it into the valve guide. Press down lightly on the handle and turn it right ...

Other materials:

Tire Air Pressure Inspection
Remove the air valve cap. Measure the tire air pressure with an air pressure gauge [A] when the tires are cold (that is, when the motorcycle has not been ridden more than a mile during the past 3 hours). Install the air valve cap. Adjust the tire air pressure according to the specifi ...

Intake Air Temperature Sensor Removal
NOTICE Never drop the intake air temperature sensor especially on a hard surface. Such a shock to the sensor can damage it. Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). Disconnect the connector [A] from the intake air temperature sensor. Remove the da ...

Camshaft, Camshaft Cap Wear Inspection
Remove the camshaft caps (see Camshaft Removal). Cut the strips of plastigage (press gauge) to journal width. Place a strip on each journal parallel to the camshaft installed in the correct position. Tighten the camshaft cap bolts and upper camshaft chain guide bolts to the specified ...