KTM LC4 Duke Problems by year

on 10/18/2026 I found gasoline dripping on hot parts of the engine. There was the distinct smell of evaporating gas. After thorough investigation I found a fuel leak at the lower part of the fuel tank where the pump module sits. The pump module is secured with a flange ring and 5 bolts. However, when disassembling the thank I found that the tank itself (a blow molded Poly Amid part) has no "molded in" metal flange ring just a plastic reinforcement (higher wall thickness to provide the flange plane). The tank...

2017 Duke 690 (Base model) with 5600 miles. After filling fuel tank, fuel spills out onto the rider while riding. Very noticeable smell of fuel for hours after riding on my clothes. Current recall, NHTSA Campaign Number: 17V388000 does not include my VIN. Several others report this problem on non-included VINs even including 2018 Duke 690's. I called an authorized KTM dealer and they refused to fix the issue because my bike's VIN is not listed on the current recall. Thank you, Guillaume

Plastic fuel tank warps at the filler and fuel pump location. The warping causes leaks at these locations. Tank is available for inspection. Fuel tank is leaking. Fuel puddles under vehicle and could be a fire risk. Fuel tank has been replaced twice by a dealer and a recall has been performed. Nothing has helped the issue. The component has not been inspected by anyone but the dealer the previous two times. There are no warning lamps.

The fuel tank around the filler neck insert is warped which causes fuel to splash out from under the filler neck seal.

Fuel tank leak from bottom of fuel tank at the fuel pump gasket. The fuel tank has deformed and the gas tank cannot properly seal with the gasket for the fuel pump and as a result gasoline will leak out of the bottom if the tank. The gas then drips onto the electricals as well as the top of the motor.