2021 Ktm 790 ADVENTURE R problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
22 owner complaints analyzed
0 distinct recall campaigns
Not available median reported failure mileage
Scope: 2021 model year. Data snapshot: . 0 complaints include usable failure mileage.
Most common problems
Engine is the most frequently named component, appearing in 11 of 22 complaints (50.0%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Braking behavior | 7 | 31.8% |
| Engine operation | 5 | 22.7% |
| Fuel system concerns | 2 | 9.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Engine | 11 |
| Fuel/Propulsion System | 8 |
| Service Brakes | 5 |
| Exterior Lighting | 4 |
| Unknown Or Other | 3 |
| Electrical System | 2 |
| Power Train | 2 |
| Tires:Bead | 1 |
Engine: 11; Fuel/Propulsion System: 8; Service Brakes: 5; Exterior Lighting: 4; Unknown Or Other: 3; Electrical System: 2; Power Train: 2; Tires:Bead: 1
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 0 |
| 25,000 to 49,999 | 0 |
| 50,000 to 74,999 | 0 |
| 75,000 to 99,999 | 0 |
| 100,000 to 149,999 | 0 |
| 150,000 and above | 0 |
Under 25,000: 0; 25,000 to 49,999: 0; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0
No usable failure mileage is recorded. 22 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2021 | 9 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
2021: 9; 2022: 6; 2023: 1; 2024: 3; 2025: 2; 2026: 1
Pattern summary
Engine leads the component reports. Braking behavior appears in 7 complaint narratives. Engine operation appears in 5 complaint narratives. Fuel system concerns appears in 2 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 11432047 · 2021-09-07 (September 7, 2021)
The brake lights were not illuminated intermittently and ABS was not engaging intermittently
Owner-reported narrative. Look up ODI 11432047 at NHTSA ↗
Owner report 11448515 · 2022-01-23 (January 23, 2022)
The motorcycle's instrument cluster (TFT Display) often becomes obscured by internal condensation (fogging), sometimes remaining obscured for extended periods of time (i.e., 30 minutes). When this occurs, it is impossible to see critical operation/safety information such vehicle speed, traction, and ABS settings. It is also impossible to operate the menu to control these same settings. The resulting conditions make vehicle operation unsafe--especially when fogging occurs while operating the vehicle. Based on extensive forum searches, this iss…
Owner-reported narrative. Look up ODI 11448515 at NHTSA ↗
Owner report 11438301 · 2021-10-26 (October 26, 2021)
I just wanted to make you aware of my 2021 KTM 890 R VIN # [XXX] 2000 MILES Since new it has had a hard start when cold or sitting overnight. It takes 2 or 3 times to start and keeps stalling I stalls runs rough and even runs on one cylinder for 30 to 60 seconds. Its a 2 cylinder motorcycle. Once running it runs great rest of day. MANY folks are seeing the same condition and KTM is not responding with anything of a solution I have owned many many motorcycles and even 6 KTMS but their lack of attention here is not good. Dealers say it's…
Owner-reported narrative. Look up ODI 11438301 at NHTSA ↗
Owner report 11438484 · 2021-10-28 (October 28, 2021)
Stalled dozens of times and sudden loss of power when cold
Owner-reported narrative. Look up ODI 11438484 at NHTSA ↗
Owner report 11437938 · 2021-10-24 (October 24, 2021)
Starting immediately after the mandatory 600 mile service check by an authorized KTM dealer, this vehicle started experiencing prolonged cold start failures. It went from starting 100% of the time after three or less start attempts to requiring approximately ten failed start attempts before starting and running. Until 10/20/21, this motorcycle has always been fueled with either 93 octane gasoline with 10% alcohol or 90 octane fuel with no alcohol (only 2-3 times) as recommended by the manufacturer. On 10/20/21, I filled the nearly empty fuel ta…
Owner-reported narrative. Look up ODI 11437938 at NHTSA ↗
Owner report 11613634 · 2024-09-09 (September 9, 2024)
Good day to whoever is reading! I've recently discovered that my brake light does not turn on on my bike no matter what brake i use front or rear. Only way it works if i push brake really hard, like way beyond regular or emergency braking. I've found similar issues online and people pointing on faulty brake sensors. They are located under the gas tank. It requires good amount of skill and time to replace them. But i did and my brake lights returned, but during a test ride i'm loosing my rear brake COMPLETELY. I take everything apart again and…
Owner-reported narrative. Look up ODI 11613634 at NHTSA ↗