MotoService Log
BMW R80 / R100 monolever / paralever (incl. GS)
Example photo: Peprovira, CC BY-SA 4.0, Wikimedia Commons

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BMW · BMW airhead (/5 /6 /7, R45-R100 1969-1995)

R80 / R100 monolever / paralever (incl. GS)

Library entry covers 1984-1996

25 factory 39 guideline

Published source

BMW R 80 RT, R 100, R 100 CS, R 100 RT, R 100 RS Rider's Manual (BMW AG), Service Schedule pp.38-39

Factory owner's handbook. Covers R 80 RT / R 100 / R 100 RT / R 100 RS rider's manual (BMW, monolever era), schedule in miles and km.

64 items for a 1992 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 valve, pushrods, adjustable tappets
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
Separate gearbox oil
Clutch control
Hand lever, cable
Final drive
Shaft
Front suspension
Telescopic fork
Rear suspension
Swingarm, single shock / cantilever
Front brake
Disc, hydraulic
Rear brake
Drum (or band / belt rim)
Wheels
Spoked, tubed
Sidecar
No sidecar
Maintenance schedule

1992 BMW R80 / R100 monolever / paralever (incl. GS)

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 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

7 items
  • Check throttle cable(s) free play and return
    Fuel and air
    Guideline
  • 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.

  • 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 spoke tension and wheel true
    Wheels and tires
    Guideline
  • Check wheel bearings for play
    Wheels and tires
    Guideline

Every 4,000 mi or 12 months

2 items
  • Inspect, clean and gap spark plugs
    Engine
    Guideline
  • Lubricate brake cam spindles, check linings and drums
    Brakes
    Guideline

Every 5,000 mi or 6 months

2 items
  • Change engine oil
    Engine
    Factory

    Manual: Engine oil and oil filter: change. Factory: Service schedule pp.38-39: at every BMW Service and Inspection (every 5,000 mi), first at 600 mi; at least every 6 months, every 3 months or 2,000 mi for short trips or freezing weather

  • Replace oil filter
    Engine
    Factory

    Manual: Oil filter cartridge: replace. Factory: Service schedule pp.38-39: with every oil change

Every 5,000 mi

4 items
  • Check and adjust valve clearances
    Engine
    Factory

    Manual: Cylinder head nuts: tighten; valve clearances: adjust. Factory: Service schedule pp.38-39: first at 600 mi

  • Synchronize carburetors
    Fuel and air
    Factory

    Manual: Carburetors: clean float chambers, synchronize, adjust cables. Factory: Service schedule pp.38-39: first at 600 mi

  • Final inspection and check for road safety (tires, tire pressure, wheels, lights, signals, indicator lamps, clutch, shifting, brakes, steering, instruments)
    Front end
    Factory

    Factory: Service schedule pp.38-39 (columns 600 miles (1000 km) Service Check, BMW Service every 5,000 mi (7,500 km), BMW Inspection every 10,000 mi (15,000 km)): X at the 600 mile Service Check, BMW Service and BMW Inspection. (Read from the page images, ManualsLib BMW R 80 RT rider's manual pp.38-39.)

  • Grease swingarm pivot
    Rear suspension and frame
    Factory

    Manual: Swinging arm bearings, clutch cable joints, side stand pivot: lubricate. Factory: Service schedule pp.38-39

Every 6,000 mi or 12 months

7 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 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 10,000 mi or 1 month

1 item
  • Check battery electrolyte, top up with distilled water
    Ignition and electrics
    Factory

    Manual: Battery acid level: check. Factory: Service schedule pp.38-39: at least once a month

Every 10,000 mi or 12 months

3 items
  • Change gearbox oil
    Primary and gearbox
    Factory

    Manual: Gearbox oil: change. Factory: Service schedule pp.38-39: at each Inspection, first at 600 mi; at least once a year

  • Change final drive (rear drive) oil
    Final drive
    Factory

    Manual: Drive shaft housing and final drive oil: change. Factory: Service schedule pp.38-39: at each Inspection, first at 600 mi; at least once a year

  • Change fork oil
    Front end
    Factory

    Manual: Telescopic fork oil: change. Factory: Service schedule pp.38-39: at each Inspection, first at 600 mi; at least once a year

Every 10,000 mi or 2 years

1 item
  • Compression test (or leak-down)
    Engine
    Guideline

Every 10,000 mi

12 items
  • Walk-around: check nuts and bolts for vibration loosening
    Pre-ride / on the road
    Factory

    Manual: Bolts and nuts, hose clamps, driveshaft bellows: check tightness. Factory: Service schedule pp.38-39: first at 600 mi

  • Replace spark plugs
    Engine
    Factory

    Manual: Spark plugs: renew. Factory: Service schedule pp.38-39

  • Clean fuel tap filter / sediment bowl
    Fuel and air
    Factory

    Manual: Petcocks (outlet filter screen): clean. Factory: Service schedule pp.38-39

  • Replace air filter element
    Fuel and air
    Factory

    Manual: Air cleaner element: replace. Factory: Service schedule pp.38-39: every 5,000 mi in very dusty conditions

  • Check / set ignition timing
    Ignition and electrics
    Factory

    Manual: Ignition timing: check. Factory: Service schedule pp.38-39: first at 600 mi; electronic ignition, no points

  • Clean battery terminals, check charge and strap
    Ignition and electrics
    Factory

    Manual: Battery poles: clean and lubricate. Factory: Service schedule pp.38-39

  • Adjust clutch free play, lubricate cable and lever pivot
    Primary and gearbox
    Factory

    Manual: Clutch free travel: check and adjust. Factory: Service schedule pp.38-39: first at 600 mi

  • Check steering head bearing adjustment
    Front end
    Factory

    Manual: Steering and swinging arm bearing play: check, adjust. Factory: Service schedule pp.38-39: BMW recommends relubricating steering and wheel bearings every 20,000 mi (30,000 km)

  • Brake fluid level: check; hydraulic brake system: check for leaks
    Brakes
    Factory

    Factory: Service schedule pp.38-39 (columns 600 miles (1000 km) Service Check, BMW Service every 5,000 mi (7,500 km), BMW Inspection every 10,000 mi (15,000 km)): X at the 600 mile Service Check and at BMW Inspection. Important: change brake fluid annually. (Read from the page images, ManualsLib BMW R 80 RT rider's manual pp.38-39.)

  • Check brake pads and discs
    Brakes
    Factory

    Manual: Brakes: remove wheels, check calipers, discs, drums, pads and linings. Factory: Service schedule pp.38-39: rear brake free travel at the same interval, first at 600 mi

  • Rear brake free travel: check, adjust if necessary (no adjustment for rear disc brake)
    Brakes
    Factory

    Factory: Service schedule pp.38-39 (columns 600 miles (1000 km) Service Check, BMW Service every 5,000 mi (7,500 km), BMW Inspection every 10,000 mi (15,000 km)): X at the 600 mile Service Check and at BMW Inspection. (Read from the page images, ManualsLib BMW R 80 RT rider's manual pp.38-39.)

  • Front and rear wheel bearing play: check, adjust if necessary
    Wheels and tires
    Factory

    Factory: Service schedule pp.38-39 (columns 600 miles (1000 km) Service Check, BMW Service every 5,000 mi (7,500 km), BMW Inspection every 10,000 mi (15,000 km)): part of the wheel removal and brake check line, X at BMW Inspection; extra charge for this service. (Read from the page images, ManualsLib BMW R 80 RT rider's manual pp.38-39.)

Every 12,000 mi or 2 years

1 item
  • Clean and grease rear suspension linkage
    Rear suspension and frame
    Guideline

Every 15,000 mi

1 item
  • Replace brake linings / skim drums (wear based)
    Brakes
    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 20,000 mi

1 item
  • Recommendation: Lubricate steering and wheel bearings
    Front end
    Factory

    Factory: Service schedule p.39, Recommendation: lubricate steering and wheel bearings at 30 000 km or 20 000 miles intervals.

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 30,000 mi

1 item
  • Lubricate clutch / gearbox input splines
    Primary and gearbox
    Guideline

Every 40,000 mi

1 item
  • Inspect timing chain and tensioner
    Engine
    Guideline

Every 12 months

2 items
  • Replace brake fluid
    Brakes
    Factory

    Manual: Brake fluid: change. Factory: Service schedule pp.38-39: change annually; level and leaks checked at each Inspection

  • 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

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

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

No interval set

1 item
  • Removing front and rear wheel, check brake caliper, disc drum and pads or linings as well as all operating parts, replacing damaged parts if necessary
    Brakes
    Factory

    Factory: As printed: replacing damaged parts 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.

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