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:

Special Tools and Sealant
Compression Gauge, 20 kgf/cm²: 57001-221 Valve Spring Compressor Assembly: 57001-241 Valve Spring Compressor Adapter, 25: 57001-1019 Valve Seat Cutter, 45° - 27.5: 57001-1114 Valve Seat Cutter, 45° - 32: 57001-1115 Valve Seat Cutter, 32° - 28: 57001-1119 Valve Seat Cutter ...

Kawasaki Clean Air System
The Kawasaki Clean Air System (KCA) is a secondary air suction system that helps the exhaust gases to burn more completely. When the spent fuel charge is released into the exhaust system, it is still hot enough to burn. The KCA System allows extra air into the exhaust system so that the spen ...

Current Mileage
This display mode shows the current mileage by numerical value. The current mileage display is renewed every 4 seconds. A. Current Mileage B. “km/L” NOTE The display unit modes can be changed, refer to the “Unit Setting” item in this section. The numerical value shows “ ...