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Bajaj · Overhead-cam four-stroke single, wet sump, gearbox shares engine oil, chain drive

Discover (94 cc)

Library entry covers 2004-2015

35 factory 51 guideline

Published source

Bajaj DTS-i Discover 100/125 Owner's Manual, Periodic Maintenance & Lubrication Chart printed pp.27-31 (copy hosted by BanglaMotor)

Factory source. Covers Bajaj DTS-i Discover owner's manual covering Discover 100 (94.38 cc) and Discover 125; no year or edition printed.

86 items for a 2013 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: Four-stroke
Engine lubrication: Wet sump (oil in crankcase)
Oil filtration: Replaceable cartridge or spin-on filter
Valve gear: Overhead cam, screw/locknut adjusters
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: Shares engine oil
Clutch control: Hand lever, cable
Final drive: Chain
Front suspension: Telescopic fork
Rear suspension: Swingarm, twin shocks
Front brake: Disc, hydraulic
Rear brake: Drum (or band / belt rim)
Wheels: Spoked, tubed
Sidecar: No sidecar

Maintenance schedule

2013 Bajaj Discover (94 cc)

On the road: every 200 mi

1 item

Check engine oil level

Pre-ride / on the road

Guideline

Each fuel stop on old machines. Dry sump: check the tank hot, engine idling or just stopped, per your manual.

On the road: every 300 mi

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 600 mi

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

Every 1,000 mi or 6 months

2 items

Adjust rear drum brake and rod / cable linkage

Brakes

Guideline
Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 mi 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
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 brake pads and discs

Brakes

Guideline
Check spoke tension and wheel true

Wheels and tires

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 3,107 mi

19 items

All fasteners (check and tighten)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,T at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Engine breather tube (check)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C every 5,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Idle speed and CO (check and adjust)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Muffler drain hole and tail pipe (clean)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL every 5,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Valve tappet clearance (check and adjust)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Air cleaner element and cover O-ring (clean)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL at 500, 5,000, 10,000, 20,000 and 25,000 km; clean more often in dust. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Fuel pipe (check)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C at 500, 5,000, 10,000, 20,000 and 25,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Battery electrolyte level and specific gravity (check)

Ignition and electrics

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A at every service (500 km, then every 5,000 km); not for VRLA batteries. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Ignition switch barrel and handlebar switch contacts (clean)

Ignition and electrics

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,CL at every service (500 km, then every 5,000 km); use WD40 spray. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Wiring harness and battery connections (check, tighten)

Ignition and electrics

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A,T at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Drive chain (clean, lubricate and adjust)

Final drive

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL,L,A at every service (500 km, then every 5,000 km); for a sealed chain apply chain spray every 500 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Front fork dust seals and bellows (clean)

Front end

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL every 5,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Steering play (check and adjust)

Front end

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Swing arm pivot pin (lubricate)

Rear suspension and frame

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): L every 5,000 km (non silent bush type). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Brake cam and brake pedal pivot pin (check, lubricate)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C at 500 km; C,L,R every 5,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Brake lining or pads (check wear indicator)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,R at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Cables and rear brake pedal free play (check and adjust)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A at every service (500 km, then every 5,000 km). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Clutch lever, front brake lever and kick lever (lubricate)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): L every 5,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Spokes, front and rear (check and tighten)

Wheels and tires

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,T at every service (500 km, then every 5,000 km) (as applicable). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.

Every 4,000 mi or 12 months

3 items

Inspect, clean and gap spark plugs

Engine

Guideline
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline
Lubricate brake cam spindles, check linings and drums

Brakes

Guideline

Every 5,000 mi or 12 months

2 items

Change engine oil

Engine

Guideline

Pre-1970 machines: many owners run non-detergent or classic-spec oil with no filter, so short intervals matter. Dry sump: drain the tank and the crankcase/sump, flush the tank and clean the feed and return screens.
Replace oil filter

Engine

Guideline

Every 6,000 mi 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 6,214 mi

7 items

Engine oil (replace)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 500, 10,000, 20,000 and 30,000 km; top up at 5,000, 15,000 and 25,000 km; 10W30 for 100 cc models. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Engine oil filter (replace)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 500, 10,000, 20,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Oil strainer (clean)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL at 500, 10,000, 20,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Spark plug (clean and adjust)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL,A at 10,000 and 20,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Steering stem bearings (check, clean, lubricate)

Front end

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,CL,L,R at 10,000, 20,000 and 30,000 km; replace if damaged. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Main and side stand pins (clean and lubricate)

Rear suspension and frame

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL,L at 10,000, 20,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Disc brake assembly (check function and leaks)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C at 10,000, 20,000 and 30,000 km (as applicable). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.

Every 8,000 mi or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 9,321 mi

6 items

Engine mounting silent bushes (check)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C at 15,000 and 30,000 km (as applicable). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Air cleaner element and cover O-ring (replace)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 15,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Fuel cock sediment bowl (clean)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): CL at 15,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Fuel pipe (replace)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 15,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
In-line fuel filter and fuel cock filter (replace)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 15,000 and 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Brake fluid level (check, top up)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,A at 15,000 km (as applicable). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.

Every 10,000 mi or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 12,000 mi or 2 years

2 items

Replace air filter element

Fuel and air

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 12,427 mi

1 item

Carburetor rubber duct (check, replace)

Fuel and air

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): C,R at 20,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.

Every 15,000 mi 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 15,000 mi

1 item

Replace brake linings / skim drums (wear based)

Brakes

Guideline

Every 16,000 mi or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 18,000 mi

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 18,641 mi

2 items

Spark plug (replace)

Engine

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 30,000 km. Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.
Brake fluid (replace)

Brakes

Factory

Factory: Periodic Maintenance & Lubrication Chart (printed pp.27-31): R at 30,000 km (as applicable). Columns as printed: 1st free service 500-750 km, 2nd 4,500-5,000 km, 3rd 9,500-10,000 km, then every 5,000 km after the previous service (shown to 30,000 km). Key: C check, A adjust, CL clean, R replace, T tighten, L lubricate. Rows marked ** apply as applicable to model.

Every 20,000 mi 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 25,000 mi or 6 years

1 item

Replace swingarm bushes / bearings

Rear suspension and frame

Guideline

Every 30,000 mi or 6 years

1 item

Rebuild forks: seals, bushes, springs

Front end

Guideline

Every 6 months

1 item

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline

Every 2 years

3 items

Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Replace brake fluid

Brakes

Guideline

Every 4 years

3 items

Replace fuel lines

Fuel and air

Guideline

Old rubber and modern ethanol fuel do not mix well.
Inspect brake hoses; replace old rubber

Brakes

Guideline
Rebuild calipers and master cylinders (seals)

Brakes

Guideline

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.