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Adventure — middleweight

KTM 790 Adventure

2020
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KTM 790 Adventure — 2020
Image: KTM Press Center — KTM, KISKA

Vitals

Wet weight
196 kg
Seat height
830 / 850 mm
Fuel capacity
20 L
Real world range
450 km
Front tyre
90/90-21
Rear tyre
150/70R18
Tyre pressures
2.4 / 2.4 bar solo
Ground clearance
233 mm
TerrainTarmacGravel — easyGravel — technical

Field repair

Fuse box
Under the seat; 10 fuses plus spares, plus 1 main fuse and ABS fuses
Fuses
10
Battery access
Under the passenger seat / battery cover

Clearing a clogged fuel pump filter (fuel starvation / stalling)

  1. 01Remove the seat and fuel tank cover to access the fuel pump/sender flange on top of the tank.
  2. 02Disconnect the fuel line and electrical connector, then unbolt and lift out the fuel pump/sender assembly.
  3. 03Inspect the in-tank strainer/sock for white, mold-like manufacturing residue or debris; clean it with fresh fuel or replace the strainer if it is torn or heavily clogged.
  4. 04Reinstall the pump assembly with a new sealing gasket if available, reconnect the fuel line and electrical connector, and refit the tank cover and seat.
  5. 05Report the issue to a KTM dealer even after a field fix — many dealers cover this repair under warranty as a documented, known issue.

Data sheet

Dimensions & weights

Wet weight
196 kg
Seat height
830 / 850 mm
Ground clearance
233 mm
Wheelbase
1509 mm
Suspension travel
200 / 200 mm

Engine & drivetrain

Engine
799 cc · Parallel twin
Cooling
Liquid cooled
Output
95 hp · 88 Nm
Transmission
6-speed
Final drive
Chain
Fuelling
Electronic fuel injection

Fuel & range

Fuel capacity
20 L
Real world range
450 km

Electronics & rider aids

Ride modes
Street/Rain/Offroad/Rally
Cruise control
Yes
Traction control
Yes · defeatable
ABS
Yes · fully defeatable
Heated grips
No
Heated seat
No

Service intervals

Service interval
15,000 km
Valve check
30,000 km
Chain lube
every 1,000 km
Air filter
15,000 km

Protection

Bash plate
None
Radiator guard
No
Oil cooler guard
No
Hand guards
No

Consumables & service specs

Every value carries its source.

Tyres

Front
90/90-21Avon TrailRider OEM fitmentKTM OM 790 Adv 2020 · official
Rear
150/70R18Avon TrailRider OEM fitmentKTM OM 790 Adv 2020 · official

Tyre pressures

Front — solo
2.4 barSolo rider, cold tyreKTM OM 790 Adv 2020 · official
Rear — solo
2.4 barSolo rider, cold tyreKTM OM 790 Adv 2020 · official
Front — loaded
2.6 barFull payload (rider+passenger+luggage), cold tyreKTM OM 790 Adv 2020 · official
Rear — loaded
2.9 barFull payload (rider+passenger+luggage), cold tyreKTM OM 790 Adv 2020 · official

Engine oil

Viscosity
SAE 10W/50KTM OM 790 Adv 2020 · official
Capacity
2.8 lKTM OM 790 Adv 2020 · official
Filter part no.
61338015200Secondary source (maintenanceschedule.com) — not confirmed against primary manual part-number tablesMaintenanceSchedule.com 790 Adv

Coolant

Type
Silicate-free coolantKTM OM 790 Adv 2020 · official
Capacity
1.60 lKTM OM 790 Adv 2020 · official

Brakes

Fluid type
DOT 4 / DOT 5.1KTM OM 790 Adv 2020 · official

Forks

Oil viscosity
SAE 4KTM OM 790 Adv 2020 · official
Oil capacity
480 ml480±5 ml per fork legKTM OM 790 Adv 2020 · official

Final drive

Chain
5/8x1/4in (520) X-ringKTM OM 790 Adv 2020 · official

Filters

Air filter part no.
KT-1113Secondary/aftermarket cross-reference source, not confirmed against primary manual part tablesKTM OM 790 Adv 2020 · official

Spark plugs

Type
NGK LMAR9AI-10KTM OM 790 Adv 2020 · official
Gap
1.0 mmKTM OM 790 Adv 2020 · official
Quantity
2One per cylinderKTM OM 790 Adv 2020 · official

Battery

Type
HTZ12A-BSKTM OM 790 Adv 2020 · official

Fuel

Minimum octane
95 RONKTM OM 790 Adv 2020 · official
Ethanol tolerance
E10 maxKTM OM 790 Adv 2020 · official

What breaks first and where.

01

Front brake master cylinder return spring — weak preload

SeriousOccasional

The return spring in the front brake master cylinder piston can have insufficient preload, which may delay full return of the brake piston and pads after brake application, increasing stopping distance.

Symptoms

  • Increased front brake lever travel/drag
  • Longer than expected stopping distances
  • Front brake feels like it is not fully releasing

Field repairableNo — Requires dealer replacement of the return spring and plastic plug in the master cylinder; not a practical roadside/field fix.

NHTSA TSB 790 brake spring · official
02

LC8c camshaft wear (cam lobe / cam follower wear)

CatastrophicOccasional

KTM acknowledged premature camshaft wear on a population of 2018-2020 790 Duke and 790 Adventure engines, attributed to marginal oil supply to the cam followers. KTM addressed this via a non-recall goodwill program (announced via a KTM Facebook statement, July 18, 2024) rather than a formal safety recall. The fix incorporated an additional oil strainer starting 2020 production and wider cam followers from 2021 production.

Symptoms

  • Difficulty starting
  • Unusual engine noise/rattle from cylinder head
  • Reduced power
  • In advanced cases, complete loss of valve timing/engine damage

Field repairableNo — Not field-repairable; requires camshaft/cam follower replacement by a dealer/qualified mechanic. Owners are advised to have valve clearance and cam condition checked at or before the 30,000 km major service.

ADV Pulse KTM camshaft
03

Fuel pump filter contamination ("white goop"/mold from tank manufacturing)

ModerateOccasional

Manufacturing residue (described by owners and dealers as a white, mold-like or flashing residue) inside the fuel tank can clog the in-tank fuel pump filter, restricting fuel delivery.

Symptoms

  • Engine bogging under load
  • Stalling
  • Intermittent loss of power
  • Engine dying at idle or low RPM

Field repairableYes — Remove the fuel pump/tank sender assembly and clean or replace the in-tank fuel filter/strainer; owners report this is warranty-covered at dealers when reported, and is a documented, dealer-acknowledged issue rather than an official recall.

ADVrider blocked fuel pump filter