Suzuki · Suzuki GS air-cooled four (GS400-GS1100 1976-1988)

GS1100E / GS1100L (chain)

Library entry covers 1980-1983

35 factory 39 guideline

Published source

Suzuki GS1100 Service Manual (80-83 GS1100T/LT/EX compilation), Periodic Maintenance Schedule 3-1 and Lubrication Chart 3-2 (PDF p.39-40)

Factory workshop manual. Covers GS1100 base service manual, US/EPA chart (manual also covers GS1100L '80, GS1100EX '81).

Open the source

74 items for a 1980 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, shim adjusted (incl. desmo)
Ignition: Battery and coil with contact points
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: 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

1980 Suzuki GS1100E / GS1100L (chain)

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

On the road: every 500 mi

1 item

Walk-around: check nuts and bolts for vibration loosening

Pre-ride / on the road

Guideline

Old machines shake things loose: exhaust nuts, mudguard stays, footrests, tank mounts, battery strap.

On the road: every 600 mi

2 items

Check chain slack and rear wheel alignment

Pre-ride / on the road

Guideline
Lubricate drive chain

Pre-ride / on the road

Factory

Manual: Drive chain: clean and lubricate. Factory: every 600 miles (1000 km). p.39

On the road: every 1,000 mi

1 item

Check road kit: plugs, points file, master link, tube patches, wire, tape

Pre-ride / on the road

Guideline

Every 600 mi

1 item

Drive chain: motor oil

Final drive

Factory

Factory: motor oil every 600 miles (1000 km). Lubrication chart p.40

Every 1,500 mi or 6 months

1 item

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.

Every 2,000 mi

1 item

Clean / inspect air filter

Fuel and air

Factory

Manual: Air cleaner element: clean. Factory: clean every 2000 miles (3000 km). p.39

Every 3,000 mi or 12 months

10 items

Check engine mounting bolts and plates

Engine

Guideline
Check throttle cable(s) free play and return

Fuel and air

Guideline
Clean fuel tap filter / sediment bowl

Fuel and air

Guideline
Synchronize carburetors

Fuel and air

Guideline
Check / set ignition timing

Ignition and electrics

Guideline
Clean and gap contact breaker points, oil cam felt

Ignition and electrics

Guideline
Adjust clutch pushrod / clutch adjuster

Primary and gearbox

Guideline
Check chain guard, chain oiler (if fitted), rear chain case

Final drive

Guideline
Check steering damper (friction or hydraulic)

Front end

Guideline
Check wheel bearings for play

Wheels and tires

Guideline

Every 3,728 mi or 12 months

13 items

Change engine oil

Engine

Factory

Manual: Engine oil and oil filter: replace. Factory: R at 4000/7500/11000/15000 mi columns; first at 600 mi. p.39
Chassis bolts and nuts: tighten

Engine

Factory

Factory: T at every column, first at 600 mi. p.39
Check and adjust valve clearances

Engine

Factory

Manual: Valve clearance: inspect. Factory: I at every column, first at 600 mi. p.39
Check cylinder head bolt torque

Engine

Factory

Manual: Cylinder head nuts and exhaust pipe bolts: tighten. Factory: T at every column, first at 600 mi. p.39
Inspect, clean and gap spark plugs

Engine

Factory

Manual: Spark plug: clean. Factory: C at 4000 and 11000 mi, R at 7500 and 15000 mi. p.39
Replace oil filter

Engine

Factory

Manual: Engine oil and oil filter: replace. Factory: replaced with the oil. p.39
Carburetor idle rpm: inspect

Fuel and air

Factory

Factory: I at every column, first at 600 mi. p.39
Check battery electrolyte, top up with distilled water

Ignition and electrics

Factory

Manual: Battery: inspect. Factory: I at 4000/7500/11000/15000 mi columns. p.39
Adjust clutch free play, lubricate cable and lever pivot

Primary and gearbox

Factory

Manual: Clutch: inspect. Factory: I at every column, first at 600 mi. p.39
Inspect chain and sprockets for wear (measure stretch)

Final drive

Factory

Manual: Drive chain: inspect. Factory: I at every column, first at 600 mi. p.39
Check steering head bearing adjustment

Front end

Factory

Manual: Steering: inspect. Factory: I at every column, first at 600 mi. p.39
Check brake pads and discs

Brakes

Factory

Manual: Brakes: inspect. Factory: I at every column, first at 600 mi. p.39
Inspect tire tread, sidewalls and date codes

Wheels and tires

Factory

Manual: Tire: inspect. Factory: I at every column, first at 600 mi. p.39

Every 4,000 mi

5 items

Clutch cable: motor oil

Primary and gearbox

Factory

Factory: initial and every 6000 km (4000 miles). Lubrication chart p.40
Check footrests, pegs, rear brake and gear lever pivots

Rear suspension and frame

Factory

Manual: Brake pedal and rod link: grease or oil. Factory: initial and every 6000 km (4000 miles). Lubrication chart p.40
Grease and check center / side stand and springs

Rear suspension and frame

Factory

Manual: Side stand pivot: motor oil. Factory: initial and every 6000 km (4000 miles). Lubrication chart p.40
Clutch and brake lever holder: motor oil

Brakes

Factory

Factory: initial and every 6000 km (4000 miles). Lubrication chart p.40
Lubricate control cables and lever pivots

Controls and cables

Factory

Manual: Throttle cable: motor oil. Factory: initial and every 6000 km (4000 miles). Lubrication chart p.40

Every 6,000 mi or 12 months

4 items

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

Every 6,000 mi or 2 years

2 items

Check engine breather and oil return

Engine

Guideline
Check valve clearances (shim adjusted)

Engine

Guideline

Every 7,456 mi or 2 years

2 items

Replace spark plugs

Engine

Factory

Manual: Spark plug: replace. Factory: R at 7500 and 15000 mi (12000/24000 km). p.39
Inspect fork seals, stanchions and fork boots

Front end

Factory

Manual: Front fork: inspect. Factory: I at 7500 and 15000 mi columns only. p.39

Every 7,500 mi

7 items

Throttle grip: grease

Engine

Factory

Factory: every 12000 km (7500 miles). Lubrication chart p.40
Replace air filter element

Fuel and air

Factory

Manual: Air cleaner element: replace. Factory: replace every 7500 miles (12000 km). p.39
Lubricate and check automatic advance unit

Ignition and electrics

Factory

Manual: Ignition timing governor link: grease. Factory: every 12000 km (7500 miles). Lubrication chart p.40
Clutch release: grease

Primary and gearbox

Factory

Factory: every 12000 km (7500 miles). Lubrication chart p.40
Lubricate brake cam spindles, check linings and drums

Brakes

Factory

Manual: Brake cam shaft: grease. Factory: every 12000 km (7500 miles). Lubrication chart p.40
Lubricate speedometer / tachometer cables, check drive

Controls and cables

Factory

Manual: Speedometer cable: grease. Factory: every 12000 km (7500 miles). Lubrication chart p.40
Tachometer cable: grease

Controls and cables

Factory

Factory: every 12000 km (7500 miles). Lubrication chart p.40

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 10,000 mi

1 item

Replace chain and sprockets (wear based)

Final drive

Guideline

Every 12,000 mi or 3 years

1 item

Replace points and condenser

Ignition and electrics

Guideline

Every 15,000 mi or 2 years

2 items

Repack / replace steering head bearings

Front end

Factory

Manual: Steering stem bearings: grease. Factory: grease every 2 years or 15000 miles (24000 km). p.40
Grease swingarm pivot

Rear suspension and frame

Factory

Manual: Swinging arm bearings: grease. Factory: grease every 2 years or 15000 miles (24000 km). p.40

Every 15,000 mi or 5 years

1 item

Inspect clutch plates and springs

Primary and gearbox

Guideline

Every 20,000 mi 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 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

2 items

Clean battery terminals, check charge and strap

Ignition and electrics

Guideline
Front fork: check air pressure

Front end

Factory

Factory: check air pressure every 6 months. p.39

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

6 items

Inspect fuel tank for rust, sealer failure, leaks

Fuel and air

Guideline
Replace fuel lines

Fuel and air

Factory

Manual: Fuel line: replace. Factory: replace every two years. p.39
Inspect wiring, bullet connectors and ground points

Ignition and electrics

Guideline
Inspect frame, welds and lugs for cracks

Rear suspension and frame

Guideline
Inspect brake hoses; replace old rubber

Brakes

Factory

Manual: Brake hose: replace. Factory: replace every two years. p.39
Replace brake fluid

Brakes

Guideline

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.