Royal Enfield Hunter 350 — Example photo: Pintu dasaundhi, CC BY-SA 4.0, Wikimedia Commons

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Royal Enfield · Royal Enfield UCE / J / twins (2008-)

Hunter 350

Library entry covers 2022-2026

42 factory 30 guideline

Published source

Royal Enfield Hunter 350 Owner's Manual (BS VI, English), Part No. RAM01202/A, 19th May 2026

Factory owner's handbook. Covers Hunter 350 BS-VI manual, 19 May 2026.

72 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: Disc, hydraulic
Rear brake: Disc, hydraulic
Wheels: Cast / alloy, tubeless
Sidecar: No sidecar

Maintenance schedule

2025 Royal Enfield Hunter 350

On the road: every 300 mi

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline

On the road: every 311 mi

1 item

Lubricate drive chain

Pre-ride / on the road

Factory

Manual: Rear wheel drive chain. Factory: Clean and lubricate every 500 km; clean, lube, adjust every 5,000 km.

On the road: every 600 mi

1 item

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline

On the road: every 621 mi

1 item

Check engine oil level

Pre-ride / on the road

Factory

Manual: Engine oil level. Factory: Check every 1,000 km and top up.

Every 621 mi

2 items

Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Factory

Manual: Clutch lever/cable free play. Factory: Adjust every 1,000 km or earlier.
Lubricate control cables and lever pivots

Controls and cables

Factory

Manual: Hand levers and foot levers. Factory: Lubricate every 1,000 km or earlier.

Every 1,000 mi or 6 months

1 item

Inspect tire tread, sidewalls and date codes

Wheels and tires

Guideline

Every 3,000 mi or 12 months

5 items

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
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 3,107 mi or 6 months

15 items

All mounting fasteners in vehicle for tightness

Engine

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Evaporative emission equipment rubber hoses & drain the overfilled hoses by removing plug (inspect)

Engine

Factory

Factory: As printed: I I I I I I I I R I I (I in every column except 40 km x1000, which is R); km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier
HT lead for crack

Engine

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Injector hose

Engine

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Rubber hose-intake adapter

Engine

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Starter motor & starter relay connection

Engine

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Clean / inspect air filter

Fuel and air

Factory

Manual: Air filter element. Factory: C at 0.5k and odd 5k columns.
Vent pipe under air filter box

Fuel and air

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: Battery terminals (apply petroleum jelly). Factory: C every column.
Front fork oil (inspect)

Front end

Factory

Factory: Printed per the re-read doubt: Front fork oil row prints I I I I R I I I R I I; the I marks fall on the regular columns (every 5 000 km / 6 months, first at 0.5 km x1000; chart has no miles row), taken as inspect every 5,000 km. The existing entry holds the replace. (From the re-read doubt notes: Royal Enfield Hunter 350, printed line or second operation stated in the DOUBT line.)
Grease and check center / side stand and springs

Rear suspension and frame

Factory

Manual: Pivots: side/center stand, footrest, shifter, brake pedal, levers. Factory: L every column.
Side stand switch operation

Rear suspension and frame

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Check brake pads and discs

Brakes

Factory

Manual: Brake pads, front and rear. Factory: I every column.
Front & rear brake hose & banjo bolt

Brakes

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)
Tire wear pattern (front & rear)

Wheels and tires

Factory

Factory: As printed: I in all 11 columns (km x1000: 0.5, 5, 10 ... 50; Months: 1.5, 6, 12 ... 60; Whichever is earlier)

Every 3,107 mi

4 items

Check throttle cable(s) free play and return

Fuel and air

Factory

Manual: Throttle cable. Factory: Adjust every 5,000 km or earlier.
Rear wheel drive chain: clean, lubricate & adjust

Final drive

Factory

Factory: Printed per the re-read doubt: the Rear wheel drive chain row prints 'Clean, lubricate every 500 km / clean, lubricate & adjust every 5,000 km or earlier as required'. The existing entry holds the 500 km operation. (From the re-read doubt notes: Royal Enfield Hunter 350, printed line or second operation stated in the DOUBT line.)
Check steering head bearing adjustment

Front end

Factory

Manual: Steering ball races play. Factory: Lubricate every 5,000 km or earlier.
Grease swingarm pivot

Rear suspension and frame

Factory

Manual: Swing arm pivot bush and spacer. Factory: Lubricate every 5,000 km or earlier.

Every 4,000 mi or 12 months

1 item

Inspect, clean and gap spark plugs

Engine

Guideline

Every 6,000 mi or 12 months

8 items

Engine oil strainer on crankcase LH (clean)

Engine

Factory

Factory: C at 500 km, then every 10000 km (6000 mi) / 12 months Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart
Inlet/exhaust tappet setting (inspect and adjust)

Engine

Factory

Factory: I&A every 10000 km (6000 mi) / 12 months Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart
Spark plug (clean and adjust)

Engine

Factory

Factory: C&A at 10000, 30000, 50000 km; replaced at 20000 and 40000 km Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart
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
Spokes tightness / wheel rim run out, front and rear (inspect)

Wheels and tires

Factory

Factory: I at 500 km, then every 10000 km (6000 mi) / 12 months Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart
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 or 12 months

4 items

Change engine oil

Engine

Factory

Manual: Engine oil (level check/replace). Factory: R I R I... cols 0.5/5/10...50k km, 1.5/6/12...60 mo.
Replace oil filter

Engine

Factory

Manual: Engine oil filter element. Factory: 6 R marks over 11 columns, matched to oil-change columns.
Throttle body cleaning

Engine

Factory

Factory: Dry microfiber cloth only; cleaners prohibited.
Replace air filter element

Fuel and air

Factory

Manual: Air filter element. Factory: R at 10, 20, 30, 40, 50k km.

Every 8,000 mi or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 10,000 mi or 2 years

1 item

Compression test (or leak-down)

Engine

Guideline

Every 12,000 mi or 2 years

3 items

Spark plug (replace)

Engine

Factory

Factory: R at 20000 and 40000 km (12000, 24000 mi) Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart
Synchronize throttle bodies

Fuel and air

Guideline
Rear wheel cush drive rubbers (inspect and replace)

Wheels and tires

Factory

Factory: I&R at 20000 and 40000 km (12000, 24000 mi) Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart

Every 12,427 mi or 2 years

3 items

Change fork oil

Front end

Factory

Manual: Front fork oil. Factory: R at 20k and 40k km.
Brake fluid level, front & rear disc (replace)

Brakes

Factory

Factory: As printed: I I I I R I I I R I I (R at 20 and 40 km x1000, 24 and 48 months)
Replace brake fluid

Brakes

Factory

Manual: Brake fluid level, front and rear disc. Factory: R at 20k and 40k km.

Every 16,000 mi or 4 years

1 item

Replace spark plugs

Engine

Guideline

Every 18,000 mi or 3 years

1 item

Earth wire eyelet contact (inspect)

Ignition and electrics

Factory

Factory: Marked at 20000 km (12000 mi, 24 months) and 50000 km (30000 mi, 60 months) Re-read from Royal Enfield Hunter 350 owner's manual (BS-VI, English) pages 105-109, periodical maintenance chart

Every 18,000 mi

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

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 24,000 mi or 4 years

1 item

Replace fuel filter

Fuel and air

Guideline

Every 24,855 mi or 4 years

1 item

Evaporative emission rubber hoses and overfill drain: replace

Engine

Factory

Factory: R at 40k km column only.

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 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

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

1 item

Replace tires on age (regardless of tread)

Wheels and tires

Guideline

No interval set

4 items

Fuel filter in fuel pump

Fuel and air

Factory

Factory: As printed: R marked in one column only; column not readable
Clutch lever / cable free play (replace)

Primary and gearbox

Factory

Factory: As printed: Adjust every 1,000 km or earlier as required & replace if required.
Steering ball races play (replace)

Front end

Factory

Factory: As printed: Inspect & adjust, if required lubricate for every 5,000 km or earlier as required. Replace if necessary
Swing arm pivot bush & spacer (replace)

Rear suspension and frame

Factory

Factory: As printed: Inspect & if required lubricate for every 5,000 km or earlier as required. Replace if necessary

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.