Kawasaki Ninja Service Manual: Piston Ring Groove Width Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Ring Groove Width Inspection

Use a vernier caliper at several points around the piston.

Piston Ring Groove Width Standard:

Top [A] 0.82 0.84 mm (0.0323
0.0331 in.)


Second [B] 0.82 0.84 mm
(0.0323 0.0331 in.)


Service Limit:

0.92 mm (0.036 in.)

Second 0.92 mm (0.036 in.)

Piston Ring Groove Width Inspection


If the width of any of the two grooves is wider than the service limit at any point, replace the piston.

Piston Ring, Piston Ring Groove Wear Inspection
Check for uneven groove wear by inspecting the ring seating. The rings should fit perfectly parallel to groove surfaces. If not, replace the piston and all the piston rings. With the pist ...

Piston Ring Thickness Inspection
Measure the piston ring thickness. Use the micrometer to measure at several points around the ring. Piston Ring Thickness Standard: Top [A] 0.77 0.79 mm (0.0303 0.0311 in.) Second [B] 0. ...

Other materials:

Troubleshooting Guide
NOTE Refer to the Fuel System chapter for most of DFI trouble shooting guide. This is not an exhaustive list, giving every possible cause for each problem listed. It is meant simply as a rough guide to assist the troubleshooting for some of the more common difficulties. Engine Doe ...

Fuel Tank and Cap Inspection
Visually inspect the gasket [A] on the tank cap for any damage. Replace the gasket if it is damaged. Check to see if the water drain pipe [B] and fuel breather pipe [C] in the tank are not clogged. Check the tank cap breather also. If they are clogged, remove the tank and drain it ...

Steering Play Adjustment
Remove: Steering Stem Head with Handlebars (see Handlebar Removal in the Steering chapter). Bend the claws [A] of the claw washer [B] straighten. Remove: Steering Stem Locknut [C] Claw Washer Adjust the steering using the steering stem nut wrench [A]. Special Tool - Ste ...