Kawasaki Ninja Service Manual: Piston Wear Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Wear Inspection

Measure the outside diameter [A] of each piston 5 mm (0.20 in.) [B] up from the bottom of the piston at a right angle to the direction of the piston pin.

If the measurement is under service limit, replace the piston.

Piston Wear Inspection

Piston Diameter

Standard: 75.959 75.974 mm
(2.9905 2.9911 in.)
Service Limit: 75.81 mm (2.985 in.)

Cylinder (Upper Crankcase) Wear Inspection

Split the crankcase (see Crankcase Splitting). Remove the pistons (see Piston Removal). Assemble the cylinder (upper crankcase) [A], the cylinder head [B] and the cylinder head gasket [C]. ...

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 ...

Other materials:

Drive Chain Slack Adjustment
Remove the cotter pin [A], and loosen the rear axle nut [B]. Loosen the both chain adjuster locknuts [C]. If the chain is too loose, turn out the left and right chain adjusters [D] evenly. If the chain is too tight, turn in the left and right chain adjusters evenly, and kick the wheel f ...

Brake Disc Installation
Install the brake disc on the wheel so that the marked side [A] faces out. Front Brake Discs [B] Rear Brake Disc [C] Apply a non-permanent locking agent to the threads of the brake disc mounting bolts. Tighten: Torque - Brake Disc Mounting Bolts: 27 N·m (2.8 kgf·m, 20 ...

Fuel Filter Cleaning
The fuel filter [A] is built into the fuel pump and can not be cleaned or checked. If the fuel filter is suspected of clogging or being damaged, replace it with the fuel pump as a set. Fuel Pump Circuit 1. Ignition Switch 2. Engine Stop Switch 3. Joint Connector E 4. ECU 5. Engine G ...