Changes to the B2 were limited to the usual paint & striping modifications plus a number of relatively minor changes to the engine and running gear.

1 Different paint and striping
2 Rubber mounted footpegs
3 Four-way flashers
4 Colours: Luminous Dark Blue, Luminous Burnt Red

1 Diaphragm fuel tap
2 Three phase charging system replaces previous two phase
3 22mm carburetors to meet emissions requirements (B2A US
only)

1 Front brake caliper now mounted behind fork leg
2 Needle bearings used on swing arm pivot
3 Triangular front brake master cylinder

The C2 presented minor updates from the C1 but was essentially the same bike.

1 Different paint and striping
2 Rubber mounted footpegs
3 Four-way flashers
4 Colours: Moon Dust Silver

1 Automatic cam chain tensioner
2 Diaphragm fuel tap
3 Three phase charging system replaces previous two phase

1 Front brake caliper now mounted behind fork leg
2 Needle bearings used on swing arm pivot
3 Triangular front brake master cylinder

This bike was Kawasaki's entry in the factory-custom market based on the C2 with different bodywork, interesting header pipes and fatter rear wheel.

1 "Coffin" tank, differently shaped seat, no tail cowling
2 New paint & striping, mudguards same colour as tank
3 Shorter rear mudguard and rubber mounted footpegs
4 Four-way flashers and low fuel warning light
5 Chromed instrument binacles & headlight shell, "wire" mounts
6 Colours: n/a

1 Four-into-two exhaust with cross-over header pipes
2 24mm carburetors(22mm on D1A US only) and diaphragm fuel tap
3 Three phase charging system replaces previous two phase
4 Automatic cam chain tensioner

1 16" rear wheel
2 New rear brake caliper and mounting arm
3 Needle bearings used on swing arm pivot
4 Triangular front brake master cylinder