The Kawasaki Z1000J (Kawasaki internal make J1) was in 1981 available in the colours "luminous ruby red"  and "luminous navy blue".

Frame No. Europe: KZT00J-000001 - KZT00J-007900
Frame No. USA :   JKAKZCJ14BA000001 - JKAKZCJ14BA007900
Motor No.:             KZT00JE-000001 - KZT00JE-019200