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Haynes BMW K75, K100 1983-1996 Repair Service ManualClick To Enlarge Product Image

BMW K75 1985-1996, K100 1983-1992 Repair & Service Manual

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  • Item Description
  • Table of Contents
  • Specifications

This repair manual by Haynes covers 1983-1996 BMW K75, K100 motorcycles, including the following models:

  • BMW K75, 1987-1996
  • BMW K75C, 1985-1988
  • BMW K75T, 1986-1987
  • BMW K75S, 1986-1996
  • BMW K75RT, 1990-1996
  • BMW K100, 1983-1986
  • BMW K100RS, 1983-1990
  • BMW K100RT, 1984-1988
  • BMW K100LT, 1986-1992
BMW motorcycles covered by this manual are liquid-cooled, 4-stroke, 3-cylinder 740cc (on 75 models) and 4-cylinder 987cc (on 100 models).

Notice: this manual also covers the K75S Special, K100RS Special, and K100RS Motorsport Limited Edition. However, the 4-valve BMW K100RS, BMW K1, BMW K1100 and BMW K1200 models ARE NOT covered in this manual.


Book Excerpt: 1983-1996 BMW K75, K100 Repair Manual

ENGINE

CAMSHAFTS AND CAM CHAIN-REMOVAL
  1. If the engine unit is in the frame, remove first the engine outer covers, as described in Section 6 of this Chapter. Remove the spark plugs, as described in Chapter 1.
  2. Rotate the crankshaft by means of an Allen key placed in the ignition rotor retaining bolt until the camshafts are placed so that all valves are closed as far as possible, i.e. so that there is the minimum pressure possible exerted on the camshafts by the valve springs.

    On 75 models this position is close to number 3 cylinder being at TDC on the compression stroke.

  3. Removal of the chain tensioner. Some early 100 models are fitted with a chain tensioner which can be locked by turning a screw as far as possible clockwise; the tensioner mounting screws are then removed and the unit can be withdrawn.

    The screw is to be found in that face of the tensioner opposite to the plunger/tensioner blade assembly.

    On 75 models and later 100 models compress the tensioner by hand, remove the mounting screws and withdraw the unit; slowly allow it to extend until the spring pressure is released.

  4. Remove their retaining clips or circlips, noting the washer behind each, and withdraw the cam chain tensioner blade and chain guide (see illustration).

    Remove its retaining screws and withdraw the chain top guide rail from between the camshafts; these are the Torx screws which BMW states are size T30 but were found on the machine to be size T27 (see illustration 8.4b overleaf).

    Owners should ensure that both sizes of keys are available.


FUEL SYSTEM AND LUBRICATION
AIR FILTER HOUSING-REMOVAL AND REFITTING
(Note: The cleaning and renewal of the air filter element are covered in Chapter 1).
  1. On K75RT, K100RS,K100RT and K100LT models, remove the fairing knee pads, radiator cover and lower side panels. On K75S models owners may wish to remove the fairing side panels, or at least their bottom covers, to gain easier access.

    On all other models, remove the radiator cover panels (see Chapter 8). Removing its top retaining screw (where fitted), withdraw the intake hose.

  2. Although not strictly necessary, the removal of the fuel tank makes work so much easier that it is strongly recommended.
  3. Release the three retaining clips which secure the filter assembly top and bottom halves, then withdraw the filter element; note that the single front clip is lifted upwards to release it and the filter is withdrawn diagonally to the rear.
  4. Slacken the clamp that secures the plenum chamber end of the air filter/plenum chamber hose; this is extremely awkward to reach with the fuel tank and/or radiator in place and will require the careful use of a suitable screwdriver (see illustration).
  5. With the clamp slackened, pull the air filter top half away from the plenum chamber. Again this is awkward due to the presence of the pieces of insulating material. To enable the filter top to be completely removed, the airflow meter must be detached so that its connector plug can be unfastened.

TABLE of CONTENTS:
  • Maintenance
  • Engine, clutch and transmission
  • Fuel system and lubrication
  • Ignition system
  • Frame and forks
  • Wheels, brakes and tires
  • Electrical system including wiring diagrams.
Subject: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996 BMW K75, K100 service, maintenance, repair. ISBN-10: 1859602665 | ISBN-13: 9781859602669 | Haynes 1373

  • Publisher: Haynes Manuals
  • Pages: 236 - Hundreds of b&w photos and illustrations
  • Binding: Hardcover - 8.5 x 11 inches
  • ISBN: 978-1-85960-266-9
  • Years: 1983 - 1996