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Suzuki · Modern shaft-drive motorcycle (2000-)

VS 1400

Library entry covers 1987-2003

19 factory 33 guideline

Published source

Suzuki VS1400GLF/GLP Intruder Service Manual, Periodic Maintenance Schedule p. 2-1 (US/EPA chart)

Factory workshop manual. Covers 1987-1990s (VS1400GLF/GLP service manual; km, miles and months).

Open the source

52 items for a 1989 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: Two or more carburetors
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: Shaft
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

1989 Suzuki VS 1400

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

2 items

Check lights, horn, brake light switches

Pre-ride / on the road

Guideline
Check tire pressures

Pre-ride / on the road

Guideline

Every 1,000 mi or 1 month

1 item

Check battery electrolyte, top up with distilled water

Ignition and electrics

Guideline

Wet-cell batteries on old machines need regular topping up, more in hot weather.

Every 3,000 mi or 12 months

5 items

Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean fuel tap filter / sediment bowl

Fuel and air

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 wheel bearings for play

Wheels and tires

Guideline

Every 4,000 mi or 12 months

10 items

Change engine oil

Engine

Factory

Manual: Engine oil and oil filter - R. Factory: Initial 600 mi/1,000 km/2 months; columns 1,000/6,000/12,000/18,000/24,000 km
Chassis bolts and nuts - T

Engine

Factory

Factory: T in each column (I printed at 18,000 km)
Engine idle speed - I

Engine

Factory

Factory: Initial 1,000 km; then every column
Replace oil filter

Engine

Factory

Manual: Engine oil and oil filter - R. Factory: Replaced with engine oil every column
Clean battery terminals, check charge and strap

Ignition and electrics

Factory

Manual: Battery - I. Factory: Every column from 6,000 km (4,000 mi)
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Guideline
Check steering head bearing adjustment

Front end

Factory

Manual: Steering - I. Factory: Initial 1,000 km; then every column
Check brake pads and discs

Brakes

Factory

Manual: Brake - I. Factory: Initial 1,000 km; then every column
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Tire - I. Factory: Initial 1,000 km; then every column
Automatic de-compression cable - I

Controls and cables

Factory

Factory: Initial 1,000 km; then every column

Every 4,000 mi or 2 years

1 item

Replace hydraulic clutch fluid

Primary and gearbox

Factory

Manual: Clutch fluid - I; replace every two years. Factory: Inspect every column; replace every two years

Every 4,000 mi or 4 years

3 items

Replace fuel lines

Fuel and air

Factory

Manual: Fuel line - I; replace every four years. Factory: Inspect every column; replace every four years
Clutch hose - I; replace every four years

Primary and gearbox

Factory

Factory: Inspect every column; replace every four years
Inspect brake hoses; replace old rubber

Brakes

Factory

Manual: Brake hose - I; replace every four years. Factory: Inspect every column; replace every four years

Every 4,000 mi

1 item

Clean / inspect air filter

Fuel and air

Factory

Manual: Air cleaner element - clean. Factory: Clean every 6 000 km (4 000 miles)

Every 6,000 mi or 12 months

8 items

Clean carburetor float bowl(s), check float level and jets

Fuel and air

Guideline

Ethanol fuel varnishes old carbs quickly in storage.
Synchronize carburetors

Fuel and air

Guideline
Check charging voltage and regulator / cut-out

Ignition and electrics

Guideline
Check final drive for leaks and bearing play

Final drive

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 6,000 mi or 2 years

1 item

Check and adjust valve clearances

Engine

Guideline

Every 7,500 mi or 2 years

4 items

Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug - I. Factory: Inspected at 6,000 and 18,000 km columns
Replace spark plugs

Engine

Factory

Manual: Spark plug - R. Factory: Replaced at 12,000 and 24,000 km columns
Change final drive (rear drive) oil

Final drive

Factory

Manual: Final gear oil - R initially, then I. Factory: Replaced at 1,000 km; inspected at 12,000 and 24,000 km
Inspect fork seals, stanchions and fork boots

Front end

Factory

Manual: Front fork - I. Factory: Marked at 12,000 and 24,000 km columns

Every 10,000 mi or 2 years

2 items

Compression test (or leak-down)

Engine

Guideline
Change fork oil

Front end

Guideline

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

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 20,000 mi or 4 years

3 items

Lubricate drive shaft splines / check U-joint

Final drive

Guideline
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 12 months

1 item

Check speedometer / odometer against a known distance

Controls and cables

Guideline

Old speedos drift with tire size and drive wear. Use phone GPS over a measured 10 miles / km.

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

Factory

Manual: Brake fluid - replace every two years. Factory: Time-based only

Every 4 years

1 item

Rebuild calipers and master cylinders (seals)

Brakes

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.