KTM 640 Enduro Motorcycle - Dual-Sport (1999-2002)

The KTM 640 Enduro, part of the versatile LC4 family, was produced from 1999 to 2002. These models were equipped with a liquid-cooled, four-stroke, single-cylinder LC4 engine, typically displacing 624.6 cc (often rounded to 625 cc). Horsepower generally ranged from 49 hp to 55 hp, delivered through a 5-speed transmission. The engine featured a SOHC with 4 valves and an engine balancer. During this period, the 640 designation was used across several models, including the Enduro (off-road), Adventure R (adventure riding, larger tank), Supermoto, and Duke (street-oriented), all sharing the same core engine. A notable mid-cycle engine change occurred in 2000 with the introduction of a 40-mm Mikuni carburetor, replacing the previous Dellorto. This improvement aimed to provide better throttle response and enhanced usability. FAQ:

Q: How do I know if this part fits my KTM 640 Enduro?

A: To ensure perfect compatibility, please use our year and model selector at the top of the page.

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