|
250 CC Twin
A1, A1SS (Samurai) KA-2 (125cc twin road-race) 250cc Twin cylinder rotary valve engine. Carburetors are fitted to both sides of the engine. Speedy bike that came in two varieties. A low pipe street only model and an upswept pipe (SS) street scrambler model. Shares a lot of parts with the bigger 350cc version the A7. 1971 was the end of the 250cc rotary valve twin. This would be replaced by the 1973 S1 (250cc) triple. There was no 250cc version for 1972. 2 stroke Oiling System: Super-Lube Ignition: CDI |
|
A1, A1SS
Type- VM22SC (22mm) Main Jet - 140 Needle Jet - 0-6 Jet Needle - 4JI3-34Et 3-3 Pilot Jet - 30 Cutaway - 2.5 Air screw - 1-1/2 turns out Float height (measurement A): 27-29mm A1R (facory roadrace model)
Type-M26R (26mm) Factory Carburetor settings unknown |
Diagram for float height measurement "A"
|
250cc Twin model identification
Factory racing KA1, KA2 for GP racing only
KA-1, KA-2 1965?-1969?
*factory experimental 125cc twin road-race model
A wild technical marvel for the time. 125cc rotary valve twin with water cooling, dry clutch, 8 speed transmission. Specifically designed for 125cc class GP racing.
*factory experimental 125cc twin road-race model
A wild technical marvel for the time. 125cc rotary valve twin with water cooling, dry clutch, 8 speed transmission. Specifically designed for 125cc class GP racing.
1967-1968 A1R
|
A1R 1967-1968
*rare factory road-race model Engine No. A1 E50001- Frame No. A1-50001- Road race model using the A1 engine with modifications including expansion chamber exhausts. Makes 12 more horsepower over the stock engine. Special suspension & wheels with larger brake drums. Lubrication is achieved by pre-mix & Injecto-lube type system for the main bearings and crank pin. Use frame# and engine# for positive identification of a real A1R |
1967-1968 A1 Samurai
|
A1 1967-1968 (Samurai)
*low pipe street model Engine No. AlE00001- Frame No. A1-00001- Kawasaki's first 250cc rotary valve twin cylinder. Two tone painted tank with badges. Shares some parts with the larger A7 (350cc) |
1969 A1
|
A1 1969 Samurai
*CDI ignition added Engine No. AlE00000 Frame No. A1-00000 Tank graphics changed, badges removed. Different rear shocks and seat. Gauges are now separate from headlight bucket. "Samurai - Electronic Ignition" displayed on oil tank |
1970 A1A
|
A1A 1970
*stylistic updates Engine No. A1E15311 - Frame No. A1-13519- Redesigned rear fender (lighter) & seat. Tank changed to a more squared off design. "Samurai" removed from badging on oil tank. |
1971 A1B
|
A1B 1971
*Styling updates Engine No. A1E21044- Frame No. A1-17477- Styling updates only. "Electronic Ignition" badging removed, replaced with "250" badging on oil tank. |
1967-1968 A1SS (street scrambler)
|
A1SS 1967-1968
*Street scrambler version Engine No. AlE00001- Frame No. A1-00001- Upswept pipes, skid plate, and cross-braced handlebars communicate some dirt road prowess. |
1969 A1SS
|
A1SS 1969
*CDI ignition added Engine No. A1E00000 Frame No. A1-00000 Same refinements and changes as the A1 (low pipe) model |
1970 A1SSA
|
A1SSA 1970
*Styling updates Engine No. AlE15561- Frame No. Al-68053- Same refinements and changes as the A1A (low pipe) model. |
1971 A1SSB
|
A1SSB 1971
*Styling updates Engine No. A 1 E21067- Frame No. A1-69822- Same refinements and changes as the A1B (low pipe) model. |