2025 Ktm 390 Adventure R problems

Filed Sep 14, 2026 · Acceleration, Electrical · CA

I have a 2025 KTM 390 Adventure R with 4500 miles on it. Numerous times the E-throttle has lost throttle response mid-ride, the engine drops to idle and the check engine light comes on. After pulling over, I restart the engine and it works as normal. It has happened on the freeway and was difficult to pull over to the side to remedy the problem. I called several KTM dealers and they said they have never heard of such a problem. I researched the problem online and found recall #25v598 which was for 2022-2024 KTM 390 Adventure. It was for a faulty electronic throttle assembly which would lose throttle response mid-ride and the engine would drop to idle. It was exactly the problem I am having. It is very scary to be on the freeway when that happens.

Filed Feb 23, 2026 · Lights · 50 miles · OK

The contact owns a 2025 KTM 390 Adventure R. The contact stated that while riding the motorcycle on several occasions at various speeds in weather under 60 degrees, the left or right turn signals were activated but failed to operate as intended. Additionally, each time the turn signals were activated in cold weather, the message "Turn Signal Failure" was displayed. The motorcycle was taken to a dealer where it was diagnosed and it was determined that the turn signals were inoperable and needed to be replaced. The manufacturer was notified of the failure. The failure mileage was approximately 50.

Filed Feb 15, 2026 · Electrical, Lights · FL

in certain comditions when using the turn signal a yellow "turn light will pop up on the screen and the blinker fail to function properly. if that pops up all blinkers stop working

Filed Nov 13, 2025 · Electrical, Engine · NJ · crash

Vehicle frequently stalls or engine stops suddenly. Engine will "knock" and suddenly stall when engaging the clutch while providing throttle to begin riding. It will stall when engaging the clutch to downshift into lower gears while coming to a stop. This has happened at busy roadways at red lights, stop signs, and even when slowing down to navigate a turn. Engine may stall while in neutral and throttle is applied. Typically a short rattle or what sounds like valves knocking, is followed by a backfire, prior to stalling. There is no way to prevent stalling/engine stopping unless RPM's are kept over 3,000. I have fallen over or crashed offroad several times, when navigating obstacles or negotiating tight turns or turn-arounds in the trails, dirt roads or forest. Bike stalled when attempting to navigate over a small log, resulting in bike crashing and pinning me underneath. Dealer performed update to most current fuel/mapping software but this did not make a difference.

Filed Oct 27, 2025 · Body · 150 miles · NC

The contact owns a 2025 KTM 390 Adventure R. The contact stated that while riding at approximately 30 MPH, the kickstand extended into the parking stance. The contact stated that the motorcycle shut off as a default and lost power after the kickstand unfolded. The motorcycle was not diagnosed or repaired. The manufacturer was not notified of the failure due to the long call waiting. The failure mileage was approximately 150.

Filed Oct 13, 2025 · Electrical · NY

The biked suddenly stalled in a traffic light. The worst part is that right after, when I click the starter to turn the bike back on, the whole electric system shut off. This had been a recurring issue, at least 7 times over the first 600 miles of this bike. I have an appointment to run diagnosis o the bike but have heard will be hard for KTM, to really take care and fix this. Please help. This became a large issue being stuck with cars honking on me. Had to get off the bike and push it off the road.

Filed Oct 6, 2025 · Engine, Fuel system · CA

The bike stalls frequently when coming to a stop. It is very dangerous because I have to restart the bike every time. I think it's a fueling problem

Filed Oct 6, 2025 · Engine, Fuel system · NY

When fully warmed up the engine will cut out the moment the throttle is applied, seemingly misfiring - sometimes 3 times in a row after restarting. Sometimes this will happen at low speed, either with a clang from early detonation or completely stalling the bike when riding at low rpm. Off-road - this is particularly dangerous when traversing obstacles as sudden loss of forward momentum will affect control of the motorcycle, sometimes in precarious places. On road, especially dangerous if the engine cuts out while accelerating from a stop into traffic. While this doesn’t often happen while riding on the road it has happened a few times in my experience.

Filed Oct 6, 2025 · Acceleration, Engine · NC

The bike is prone to stalling as you come to a stop and are pulling in the clutch. It can happen without warning. There is also an issue with the side stand. It stacks out pretty far and if your boot touches it can kill power delivery leading to a sudden loss of power.

Filed Sep 30, 2025 · Engine · MO

Engine constantly stalls when coming to stop. It has stalled at stoplights and intersections when trying to takeoff. It’s also stalled when coming to a stop with the clutch in the engine dies. I have been riding motorcycles for 50+ years. It’s been to the dealer several times and it still does it. Install several times every time I take it for a ride.