Kawasaki Ninja Service Manual: Connecting Rod Bend Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Crankshaft and Connecting Rods / Connecting Rod Bend Inspection

Remove the connecting rod big end bearing inserts, and reinstall the connecting rod big end cap.
Select an arbor [A] of the same diameter as the connecting rod big end, and insert the arbor through the connecting rod big end.
Select an arbor of the same diameter as the piston pin and at least 100 mm (3.94 in.) long, and insert the arbor [B] through the connecting rod small end.
On a surface plate, set the big-end arbor on V block [C].
With the connecting rod held vertically, use a height gauge to measure the difference in the height of the arbor above the surface plate over a 100 mm (3.94 in.) length to determine the amount of connecting rod bend.

If the connecting rod bend exceeds the service limit, the connecting rod must be replaced.

Connecting Rod Bend Service Limit: TIR 0.2/100 mm (0.008/3.94 in.)

Connecting Rod Bend Inspection

Crankshaft/Connecting Rod Cleaning

After removing the connecting rods from the crankshaft, clean them with a high flash-point solvent. Blow the crankshaft oil passages with compressed air to remove any foreign particles or res ...

Connecting Rod Twist Inspection

With the big-end arbor [A] still on V block [C], hold the connecting rod horizontally and measure the amount that the arbor [B] varies from being paralleled with the surface plate over a 100 ...

Other materials:

Thermostat Removal
Remove: Fuel Tank (see Fuel Tank Removal in the Fuel System (DFI) chapter) Air Cleaner Housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter) Throttle Body Assy (see Throttle Body Assy Removal in the Fuel System (DFI) chapter) Throttle Body Assy Holder Clamp [A] ...

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] Valve Seat Cutter, 45° - 27.5: 57001-1114 Valve Seat Cutter, 32° - 28: 57001-1119 Valve Seat ...

Additional Considerations for High Speed Operation
Brakes: The importance of the brakes, especially during high speed operation, cannot be overemphasized. Check to see that they are correctly adjusted and functioning properly. Steering: Looseness in the steering can cause loss of control. Check to see that the handlebar turns freely but ha ...