Category: Service Bulletin

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  • rear-drive-gear-ratio-171-305-371

    rear-drive-gear-ratio-171-305-371

    SERVINICFEO RMAllON Tech. Cuet. Service Motorcycle R 75/5 group: rear axle drive Munich, March71 VI~ 20 Gi/Zr/Go No. 1/71 (305) engo ( Ref.: New Rear Axle Transmission Dear Sire, in order to improv~ the accelleration valuee of the model R 75/5, ei!p

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  • rear-drive-gear-ratios-33-003-78-1064r-1178

    rear-drive-gear-ratios-33-003-78-1064r-1178

    ( Service-Information Q – R 100 Service Technical R-VK-10 wb-st Group: Rear Drive Munich, Nov. ’78 33 003 78(1O64R Subject: Rear Drive Gear Ratios Dear Dealer, – For U.S.A. and Canada Only – Below is a gearing information chart for your convenience. Whether checking, repairing, or ordering replacement gears or speedometers make sure ratios are accurate. Continuing changes make parts microfiche listings inaccurate. We must also remind you not to change any gearing on machines built after January 1, 1978 due to EPA emission regulations. No. of Teeth RPM at 55 mph SpeedometE Ratio Ring Gear/Pinion Gear (101 km/h) (aporox~)…

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  • rear-drive-oil-leaks-33-001-77-1021r-877

    rear-drive-oil-leaks-33-001-77-1021r-877

    Serv j ce-i nf orma tion BMWM OTORRAGDM BH Motorcycle R50/5 – R100RS Munich,August 77 Service Technic R-VK-10 wb/ur Group: Rear Axle 33 001 77(1021R) For U.S.A. and Canada only Subject: Rear Drive Oil Leaks Dear Dealer, It an oil leak on the rear drive â– ust be repaired, use the following guidelines: General Never install a replacement seal without a BMW- special tool, this seal is a delicate design, if re-shaped, by incorrect tools, could be damaged before its intended use. Inspect and remove any obstructions in the path of the seal before installation of the seal. ·Coat the seal,…

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  • motocross-shocks-172-012m-372

    motocross-shocks-172-012m-372

    ~US8rvice-lntormat&io n \_, echn. Cust. Service M1 ~torcycles R50/5,R60/5,R75/5 ~ unich, March 72 S-201 gi/mi G f’loup: suspension and shock : /72 (012 m) absorbers Supplement 1 Ref: Rear shock absorbers for motocross Dear Sirs, In addition to the earlier authorization of a ‘harder’ shock absorber it i~ now also possible to order a harder spring leg, complete, left Order no. 33 53 1 231 895 spring leg, complete, right Order no. 33 53 1 231 894 harder carrying spring (wire gauge 0.31″) Order no. 33 53 1 231 893 via the normal order channels. Information on the application of…

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  • driveshaft-oil-transferrence–1271

    driveshaft-oil-transferrence–1271

    MOTORCYCLES ( ••”” • v.o••~ •• ••••.,.•••••• .. •••- ……….. ~ ••• ••L •~ ~._ •• • ••••• • .,., •• .,,_.,,. …… _.. ~- M E M 0 TO: All Authorized BMW Dealers FROM: Butler & Smith, Inc. RE: Driveshaft Oil December 1, 1971 We have received various reports that customers experienced oil transferring from the driveshaft housing to the rear drive housing. We have found that in many of these cases the suspect seal, part number 33 12 1 230 356, is not defective, but that the oil seeps along the splines of the driveshaft pinion and around…

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  • shock-types-&-identification-33-004-79-2004-979

    shock-types-&-identification-33-004-79-2004-979

    ( ‘ Service-Informatio&n Group 33 September Bulletin No. Rear Drive 1979 33 004 79(2004 – For U.S.A. and Canada Only – Subject: Types of Rear Shocks, BMW R 50/5 to R 100 RT, Including R 65 Below find a listing of all rear shocks in use and optional equipment for your quick reference. It also informs you of a heavy-duty shock and its identification. Rate (N) Identification Part Number Class I 290-360 “l” No. stamped into R 65 flat spot (see draw- 33 53 1 240 647 ing on Page 2.) R 50/5-R 100 RT 33 53 1 240 646…

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  • nivomat-shcks-retrofit-33-008–83-2085-1083

    nivomat-shcks-retrofit-33-008–83-2085-1083

    _) Service-Information$ Group 33 October Bulletin No.: Rear Wheel Drive 1983 33 008 83 (2085) – For U.S.A. and Canada Only – RE: “NIVOMAT” SELF-LEVELING SHOCKS FOR BMW MOTORCYCLES Dear Dealer: To improve riding comfort, the RlOORT is equipped with “Nivomat” shocks as standard equipment. They can be used on all other BMW motorcycles from /5 models to the present except the R65, R65LS, R80GS and the R80ST. These Nivomats have been developed forBMW by Boge. , • 1, .’”-l ·_t·i~·–·:· Nivomata offer ‘”the: foliowi~g advantage;k,~::;;.~}~~ff;;,:,,- ‘ ‘.:~L’;~,~~n,:,~• ,••; ,.::-\, • The motorcycle remains at c6nstant ri.de~hei9.ht··up to its allowable…

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  • nivomat-improvement-kit-33-007-82-2062-682

    nivomat-improvement-kit-33-007-82-2062-682

    Service-Informatio&n Group: 33 June Bulletin No. Rear Wheel Drive 1982 33 007 82 (2062) – For U.S.A. and Canada only – RE: NIVOMAT IMPROVEMENT KIT Dear Dealer: After extensive testing, we are pleased to make available a helper spring kit for all Nivomats (with exception of the latest 1982 Nivomat identified by a black bottom leg stamped “L”). This kit is available under Part No. Yours truly, f E;t–1WO F .NORTH .AMERICA, INC. ‘r r ‘ \~Jv~J Herb Neas National Service Manager HN/vaa enclosure Please route and initial before filing r-,, – …… ~ …. …, ft II,.,,~,…,~.,..,,,.. 33 53…

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  • nivomat-failure-33-006-81-2033-681

    nivomat-failure-33-006-81-2033-681

    ( ( Service-Informatio&n Group: 33 June Bulletin No: Rear Wheel Drive 1981 33 006 81 (2033) – For U.S.A. and Canada Only – RE: Nivornat Since the introduction of the “Nivomat” rear shock, now standard on all 1981 RT Models, it has come to our attention that premature failures occur due to: l. FILLER PLUGS: 2. 3. WARNING: Do not remove or loosen these two phillip head screws. If done, the entire shock will be ruined and must be replaced at your cost. These holes are for manufacturing purposes only, no adjustments or rebuilding can be achieved by removing these…

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  • spring-sizes-33-005-80-2011-280

    spring-sizes-33-005-80-2011-280

    Service-Informatio&n Group 33 February Bulletin No. : Rear Wheel Drive 1980 33 005 80(2011) – For U.S.A. and Canada Only – Subject: Rear Shocks Two different springs can be supplied in each case for the rear suspension on our R 45, R 65, and R 50/5 – R 100 RT models: Part No. 33 53 1 237 286 33 53 1 237 586 33 53 1 235 550 33 53 1 231 893 Spring Length, Relaxed 244 :: 4 nm 238,1 + 2.6 nun 251 ! 1.5 mm Wire Thickness 7.5 ITDil 8 nun. 7.5 mm 8 nun ~~- .…

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About The Service Bulletin Archive

Searchable index of BMW service bulletins for repair and parts installation for a variety of 247 models. This is not an exhaustive list. If you have ones to share to help complete the archive, please contact us directly.