Category: Service Bulletin

7?r~:::··· ◄~ – .,,.)j,.J,,-” ·- ….. I I \,._) SERVIINCFEO RMATION . – -· . . _, ,_: ‘ • Motorcycle•.~ group: geal’hox Ref.: Thrust wa:sher at drive shaft Dear Sirs, No. caused by further techntcai development we etarted ~n the series ex chassis No. 2 903 693 – ” ” 2 9,a 962 – ” ” 2 982 820 – R .50/5 R 6·0/5 :Ft 75/5 a improved thrust washer and altered the bushing .tor the drive shaft or the g,arbox. – • \. present version part No .• starter disc and 2 321 1 020 16Ji .. 1…

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SERVINICFEO RMAllONr’ Tech. Customer Service VXT 20 Gi/Zr/Go Motorcycles R60/5,R60/5,R75/5 group: transmission Munich, Jan. 71 Nr. 3/70 (301) eng. Ref.~ Winter oil for transmission, flywheel and rear wheel drive Dear Sire, for winter service always use for transmission, flywheel and rear wheel drive the braip h1poid transmission-oil SAE 80, which we released aFer ong tests, since at low outer temperatures there is the danger that the tough hypoid oil SAE 90 will be pressed out via the ventilation. We recommend as follows: outer temp. above+ s0c brand hypoid tranemieeion oil SAE 90 outer temp. below+ 5°c brand hypoid tranemiaeion oil…

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( SERVIINCFEO RMATION Teohn.Cu ■ t.Scrvice YKT 20 fm/cb/ca Motor cycle R50/5,R60/5,R75/5 Groups Tran■■ i ■ eion Munich, Dec.2nd 70 po. 2/70 (295) • Bet.a Clutch Co■plaiat. ■ Dear Sirs, aa main reason fOr the elutch knock=lika E~l~•••••t of the clutch which got known in varioue aa ■ ea, ia dae to a too lar1e axial clearance of the aaim drive11haft of the t.ran ■= 111is11loni n con.oie~tic:m with the a1u·.r1d,l111J:oi!fi l th:;II I Bennewitz$ (

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( SERVIINCFEO RMATION Teohn.Cu ■ t.Scrvice YKT 20 fm/cb/ca Motor cycle R50/5,R60/5,R75/5 Groups Tran■■ i ■ eion Munich, Dec.2nd 70 po. 2/70 (295) • Bet.a Clutch Co■plaiat. ■ Dear Sirs, aa main reason fOr the elutch knock=lika E~l~•••••t of the clutch which got known in varioue aa ■ ea, ia dae to a too lar1e axial clearance of the aaim drive11haft of the t.ran ■= 111is11loni n con.oie~tic:m with the a1u·.r1d,l111J:oi!fi l th:;II I Bennewitz$ (

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( Service-Informatio&n Group 23 August Bulletin No.: Transmission 1983•’ 23 005 83 ( 208 3) – – For U.S.A. and Canada only – RE: CHANGES IN THE FIVE-SPEED GEARBOX Dear Dealer: To supplement Service Info·rmation 23 004 83 (2073), March 1983, further design changes to improve shifting have been made in the shift control mechanism. Segment with Off-Set (arrow) Pawl Spring with Straight Arms Please route and initial before filing ,· • .. ,…: Shift Pawl with Overshift Ratchet (arrow) without Off-Set 2 It was possible that the arms of the pawl spring could bind because of tight tolerances. Now,…

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( Service-Informatio0n Group 23 June Bulletin No. : Gearbox 1983 26 005 83 (2078) – For U.S.A. and Canada only – RE: COUPLING OF UNIVERSAL JOINT TO GEARBOX Dear Dealer: In the future, lock washers will not be used to bolt the universal joint to the gearbox drive flange. Long-time testing has demonstrated that drive shaft bolts without lock washers will not come lapse provided they are tightened to the specified torque ‘.qf_ ‘d;.i.(‘ -….,.._ 4 0 Nm ( 2 9 ft/ 1 b ) . •• –~ •• “”””-· ·.ak.J::\ure no oil Lock Bolt Part MS -x 1 x…

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( ..-.-. ·. •\ S81ViCe-irlfoi&n l8tion Group 23 March Bulletin No.: Gearbox 1983 23 004 83 (2073) – For U.S.A. and Canada Only – RE: MODIFICATIONS TO 5-SPEED GEARBOX Dear Dealer: During 1982, gearboxes have been modified to improve gear shift action. Starting with gearbox number Z or ZSA 56 476, all 5-speed gearboxes (with or without kick starte~) have a modified selector mechanism to improve the selection of gears. Gearboxes with the new shift mechanism can be identified by a green paint spot near the air cleaner housing surface. All 5-speed gearboxes ca~ .be modified by installing the following:…

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n ( Service-Informatio&n Group: 23 June Bulletin No. Transmission 1982 23 003 82 – For U.S.A. and Canada Only – RE: GEARBOX OUTPUT SHAFT SEAL Dear Dealer: (2056) To reduce the possibility of an oil transfer from the gearbox into the drive shaft housing of the swinging arm, we have introduced a new seal: Part No. 23 12 1 232 681 This new seal bears the inscription 11:KACO” and is bluish-green in color. The old seal: Part No. 23 12 1 232 679 Color – black, inscribed with “cFw,” should be removed from your parts stock. Also check gasket sets:…

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Service-l nf ormation fa) BMW MOTORRAD GMBH Motorrad R6O/6-Rl00RS Munich,. • June 78 Techn. Kundendienst Technik R-VK-1O wb-st Group: Transmission 23 002 78 (1049R -For U.S.A. and Canada Only- Subject: Kinematic Shift Mechanism Dear Dealer, Starting with the 1978 Model introduction, a new shift selector was introduced called “kinematic.” The advantages are to lower the efforts in selecting gears and a more positive geat selection. All previous models with a 5-speed transmission could be equipped with the “kinematic” kit Part No. 23 31 1 237 796 install as per instruction, no internal alterations are necessary in the transmission. Yours truly,…

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( ( Service-1n formation BMWM OTORRADG MBB Motorcycles R60/6-R100RS Munich, Aug. 77 Service Technic R-VK-10 wb/ur Gearbox 23 001 77 ( 10238) For U.S. and Canada only Subject: Repair Hints on 5-Speed Gearboxes and Technical Data on the Racing Gearbox Dear Dealer, Constant research and development produced improve ■ ents in the production of the 5-speed gearbox. The following is a summary of these improve ■ents and suggestions that could be incorporated in future repairs. In addition, you will find infor■ation covering the racing gearbox ratios. Latest production of gearboxes have the following changes: a) Strengthen sliding gears, identified by…

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