It combines the RFVC engine from the proven NX650 Dominator dual sport with the lighter, off-road capable XR600R chassis, the latter of which is not road legal in the US.

It has been produced virtually unchanged since 1993 and is still in production as of 2024.

The engine is a 40 hp, air-cooled 644 cc (39.3 cu in) SOHC, dry-sump, single-cylinder, four-stroke.

With an electric starter, headlight, taillight, turn signals, mirrors, US EPA and California Air Resources Board (CARB) compliant exhaust system, and a 2.8-US-gallon (11-litre; 2.3-imperial-gallon) metallic fuel tank, the 650L has a 349 lb (158 kg) wet weight.

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