It was one of the most popular of the 400 cubic centimetres (24 cu in) sport bikes that swept across Japan and later Europe in the 1990s.

It was discontinued in 1999 in worldwide markets but unsold models were imported to the United Kingdom until 2003.

The L series had increased power output, but less torque, and updated slimmer rear styling.

1999 (L9): Modified engine internals and suspension Both the L and H models were produced in a very limited "Sport Production" series, allowing Kawasaki to homologate a higher specification to make them more competitive in the Formula 3 race series, and were only available in Japan.

The J and M specification included these additions over and above the standard models : Close ratio gearbox, FCR Flatslide carburettors with TPS, adjustable camshafts, lighter rear subframe combined with single seat unit, front suspension with compression & rebound damping, fully adjustable rear suspension, Mitsubishi CDI with a raised rev limit of 15200rpm.