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

CT 110

Library entry covers 2021-2025

27 factory 28 guideline

Published source

Bajaj CT110X BS VI Owner's Manual, Periodic Maintenance & Lubrication Chart pp.26-32 (Bajaj Auto PDF on cdn.bajajauto.com; retrieved via Wayback capture 2024-06-16)

Factory owner's handbook. Covers CT110X BS VI owner's manual (CT 110 variant).

Open the source

55 items for a 2025 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: Fuel injection
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: Drum (or band / stirrup)
Rear brake: Drum (or band / belt rim)
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2025 Bajaj CT 110

On the road: every 300 km

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 500 km

2 items

Check lights, horn, brake light switches

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

On the road: every 5,000 km

1 item

Check tire pressures

Pre-ride / on the road

Factory

Manual: Tire air pressure. Factory: C,A every service.

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 5,000 km or 12 months

5 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Inspect chain and sprockets for wear (measure stretch)

Final drive

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
Check wheel bearings for play

Wheels and tires

Guideline

Every 5,000 km

10 items

All fasteners tightness

Engine

Factory

Factory: C,T every service.
Check and adjust valve clearances

Engine

Factory

Manual: Valve tappet clearance. Factory: C,A every service.
Check engine breather and oil return

Engine

Factory

Manual: Engine breather tube for cracks. Factory: C,R each service from 9500-10000 km.
Clean / inspect air filter

Fuel and air

Factory

Manual: Air cleaner element. Factory: CL every service except replacement services.
Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: Battery, connections & health by load tester. Factory: C,A,L,T every service.
Clean drive chain thoroughly (remove and soak, re-lube)

Final drive

Factory

Manual: Non-sealed Drive chain wear - Clean, Lubricate & adjust. Factory: Remove, clean in diesel, lubricate with molten chain grease every service.
Check steering head bearing adjustment

Front end

Factory

Manual: Steering play. Factory: C,A every service.
General lubrication - Clutch lever, Front Brake Lever

Brakes

Factory

Factory: L every service.
Lubricate brake cam spindles, check linings and drums

Brakes

Factory

Manual: Brake cam (Front & Rear). Factory: CL,L every service from 9500-10000 km.
Lubricate control cables and lever pivots

Controls and cables

Factory

Manual: All cables free play adjustment. Factory: C,A every service.

Every 6,500 km or 12 months

1 item

Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline

Every 9,500 km or 12 months

4 items

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 speedometer / tachometer cables, check drive

Controls and cables

Guideline

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

Every 10,000 km

9 items

Change engine oil

Engine

Factory

Manual: Engine oil (Bajaj DTSI 10000 oil). Factory: R at 1st service, every 10,000 km; top-up between. Services 500-750 km, then every 5000 km to 75000.
Check engine mounting bolts and plates

Engine

Factory

Manual: Engine foundation silent bushes for cracks. Factory: C,R at 1st service then every 10,000 km.
Clean oil strainers / mesh screens

Engine

Factory

Manual: Oil strainer. Factory: Clean at time of oil change.
Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug clean & check gap. Factory: CL,A every 10,000 km.
Rear sprocket fasteners for looseness

Engine

Factory

Factory: C,T at 1st service then every 10,000 km.
Replace oil filter

Engine

Factory

Manual: Engine oil Filter. Factory: Replace in 1st service and at every 10,000 km.
Clean carburetor float bowl(s), check float level and jets

Fuel and air

Factory

Manual: Carburetor float chamber cleaning. Factory: CL at 1st service then every 10,000 km.
Clean fuel tap filter / sediment bowl

Fuel and air

Factory

Manual: Fuel cock sediment bowl cleaning. Factory: CL at 1st service then every 10,000 km.
Repack / replace steering head bearings

Front end

Factory

Manual: Steering stem bearing & Cap steering bearing. Factory: C,CL,L at 1st service then every 10,000 km.

Every 15,000 km

3 items

Replace air filter element

Fuel and air

Factory

Manual: Air cleaner element. Factory: Replace air filter element (and cover O ring) every 15,000 km.
Replace fuel lines

Fuel and air

Factory

Manual: Fuel pipes for cracks. Factory: Check every service; replace at every 15,000 km.
Replace brake linings / skim drums (wear based)

Brakes

Factory

Manual: Brake shoes (Front & Rear) for wear limit. Factory: Check every service; R at 15,000 km multiples per chart.

Every 16,000 km or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 19,500 km or 2 years

2 items

Synchronize throttle bodies

Fuel and air

Guideline
Grease swingarm pivot

Rear suspension and frame

Guideline

Every 20,000 km

2 items

Drive chain link lock

Final drive

Factory

Factory: Replace at every 20,000 km.
Grease and check center / side stand and springs

Rear suspension and frame

Factory

Manual: Main stand & side stand both pivot pin. Factory: C,L at 1st service then every 20,000 km.

Every 29,000 km

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 30,000 km

2 items

Replace spark plugs

Engine

Factory

Manual: Spark plug. Factory: Replace at every 30,000 km.
Change fork oil

Front end

Factory

Manual: Front fork oil & seal. Factory: Replace oil, oil seal and dust seal at every 30,000 km; check each service.

Every 32,000 km or 4 years

1 item

Repack / replace wheel bearings

Wheels and tires

Guideline

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

Every 38,500 km or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

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 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 6 years

1 item

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.