2016 KTM 690 Duke

Complaints about the 2016 KTM 690 Duke center almost entirely on the fuel system, specifically fuel leaking from the top of the tank. Owners consistently describe gasoline seeping out near the filler cap or upper tank flange, with several pointing to the plastic tank warping at the seal area as the source. The leaking fuel runs down the sides of the bike and produces a persistent fuel smell while riding. Multiple owners report that dealer repairs, including filler cap replacements and even a full tank replacement under warranty, failed to resolve the problem, in at least one case the tank was replaced three times without eliminating the leak. A handful of owners also describe related symptoms including overheating, random stalling, difficulty restarting, and elevated oil consumption, though these appear alongside the fuel leak rather than as a separate dominant complaint pattern.

Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →