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KTM · Two-stroke single, premix, chain drive

Adventure 50 Mini

Library entry covers 2003-2007

25 factory 49 guideline

Published source

KTM 50 Senior Adventure / 50 Mini Adventure 2006 owner's manual, periodic maintenance printed p.14 (ManualsLib 744024 p.15)

Factory source. Covers 2006 owner's manual (cover prints 50 Mini Adventure); brake fluid items in the chart are for the 50 Senior Adventure only and are left out.

74 items for a 2004 model, grouped by interval the way a factory chart is laid out.

How this bike is built (what the schedule is based on)

Engine cycle: Two-stroke
Engine lubrication: Two-stroke premix (oil in fuel)
Oil filtration: None (no filter)
Valve gear: None (two-stroke porting)
Ignition: Electronic (CDI / transistor / ECU)
Charging: Alternator / stator with rectifier
Battery: Wet cell (flooded lead-acid, needs topping up)
Fuel system: Single carburetor
Cooling: Air / oil cooled
Primary drive: Gear or chain inside engine, shares engine oil
Gearbox oil: Separate gearbox oil
Clutch control: Automatic or semi-automatic
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, single shock / cantilever
Front brake: Drum (or band / stirrup)
Rear brake: Drum (or band / belt rim)
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2004 KTM Adventure 50 Mini

On the road: every 200 km

1 item

Check two-stroke oil tank / carry premix oil

Pre-ride / on the road

Guideline

Running a two-stroke out of oil seizes it. Injection bikes: check the tank. Premix: carry oil and a measure.

On the road: every 500 km

3 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Guideline

Lube warm, ideally at the end of the riding day so it soaks in overnight. Sooner after rain.

On the road: every 1,000 km

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,600 km or 6 months

3 items

Adjust front drum brake

Brakes

Guideline
Adjust rear drum brake and rod / cable linkage

Brakes

Guideline
Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 km or 12 months

1 item

Replace spark plugs (two-stroke)

Engine

Guideline

Every 5,000 km or 12 months

11 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean fuel tap filter / sediment bowl

Fuel and air

Guideline
Adjust automatic / semi-automatic clutch

Primary and gearbox

Guideline
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Guideline

Non O-ring chains on old machines: remove, clean, soak in hot chain grease or lube, refit with the master link clip closed end leading.
Inspect chain and sprockets for wear (measure stretch)

Final drive

Guideline
Check steering head bearing adjustment

Front end

Guideline
Inspect fork seals, stanchions and fork boots

Front end

Guideline
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Guideline
Grease and check center / side stand and springs

Rear suspension and frame

Guideline
Check spoke tension and wheel true

Wheels and tires

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 5,000 km or 2 years

1 item

Decarbonize exhaust ports, pipes and baffles

Engine

Guideline

Two-strokes coke up the exhaust port and muffler baffles; power falls off gradually.

Every 6,500 km or 12 months

2 items

Inspect, clean and gap spark plugs

Engine

Guideline
Lubricate brake cam spindles, check linings and drums

Brakes

Guideline

Every 9,500 km or 12 months

7 items

Clean / inspect air filter

Fuel and air

Guideline

Mesh or oiled foam: clean and re-oil. Paper: blow out or replace. Some very early machines have no filter at all.
Clean carburetor float bowl(s), check float level and jets

Fuel and air

Guideline

Ethanol fuel varnishes old carbs quickly in storage.
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check swingarm bushes for play

Rear suspension and frame

Guideline
Inspect rear shocks for leaks and damping

Rear suspension and frame

Guideline
Lubricate control cables and lever pivots

Controls and cables

Guideline
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Guideline

A dry speedo cable whips the needle and eventually kills the instrument.

Every 16,000 km or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change gearbox oil

Primary and gearbox

Guideline

Every 19,500 km or 2 years

3 items

Replace air filter element

Fuel and air

Guideline
Clean and grease rear suspension linkage

Rear suspension and frame

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 24,000 km or 3 years

1 item

Change fork oil

Front end

Guideline

Some early telescopic forks are grease filled or use very small oil quantities. Check your manual.

Every 24,000 km

1 item

Replace brake linings / skim drums (wear based)

Brakes

Guideline

Every 25,500 km or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 29,000 km

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 32,000 km or 4 years

2 items

Repack / replace steering head bearings

Front end

Guideline

Many old machines use loose balls in cups and cones. Taper roller conversions are common.
Repack / replace wheel bearings

Wheels and tires

Guideline

Cup-and-cone and taper roller hubs need periodic repacking and adjustment.

Every 40,000 km or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 48,500 km or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 5 h

10 items

Engine leaks (check)

Engine

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Air filter and air filter box (clean)

Fuel and air

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Transmission oil (change)

Primary and gearbox

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Chain (lubricate)

Final drive

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Chain, chain joint, chain wheels, chain guides wear, fit and tension (check)

Final drive

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Brake system screws tight fit (check)

Brakes

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Spoke tension and rim joint (check)

Wheels and tires

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Wheel bearings play (check)

Wheels and tires

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Actuating cables (check for damage, smooth operation, routing; adjust and lubricate)

Controls and cables

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.
Hand levers smooth operation and free travel (check, adjust)

Controls and cables

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in both columns: every 5 hours and every 20 hours.

Every 20 h

11 items

Exhaust system leaks and suspension (check)

Engine

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Idle setting with engine warm (check)

Engine

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Intake flange cracks (check)

Engine

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Spark plug (check, change if necessary, set electrode gap)

Engine

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Carburetor tight fit at intake flange (check)

Fuel and air

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Chassis screws tight fit: fork plates, axle nuts, swinging-fork pivot, suspension strut (check)

Front end

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Steering-head bearing (check, adjust)

Front end

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Suspension strut and fork leaks and function (check)

Front end

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Swinging-fork pivot (check)

Front end

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Brake cables (check for damage)

Brakes

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.
Tire condition and inflation pressure (check)

Wheels and tires

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Marked in the 20 hours column only.

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 12 months

4 items

Carburetor float chamber (drain and clean)

Fuel and air

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Recommended supplementary work, once a year.
Fork (complete maintenance)

Front end

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Recommended supplementary work, once a year.
Steering-head bearing and sealing elements (clean and lubricate)

Front end

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Recommended supplementary work, once a year.
Swinging-arm bearing (clean and lubricate)

Rear suspension and frame

Factory

Factory: Periodic maintenance chart (KTM 2006 owner's manual, 50 Senior Adventure / 50 Mini Adventure, printed p.14; columns 'Service every 5 hours' and 'Service every 20 hours', plus supplementary work 'once a year'). Recommended supplementary work, once a year.

Every 2 years

2 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline

Every 4 years

1 item

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.

Every 6 years

2 items

Replace inner tubes and rim tape with tires

Wheels and tires

Guideline
Replace tires on age (regardless of tread)

Wheels and tires

Guideline

Guideline lines: Intervals here are general guidelines for the machine's era and layout, compiled for this app. They are not factory manual figures. Check your workshop manual, and edit any interval in the bike's Schedule tab.