Category: Service Bulletin

Service-Informatio&n Group 12 May Butletin No. : Engine – Electrical 1983 12 007 83 – For U.S.A. and Canada Only – RE: IDENTIFYING TERMINALS ON IGNITION CONTROL UNIT Dear Dealer: On the ignition control units for motorcycles with TSZh ignition (transistorized coil ignition with Hall-effect trigger), the terminals are numbered in sequence from 1 to 7. In the circuit diagrams, the standardized terminal identification numbers appear-:: in· s9me cases . ….”. “. .. the two methods q’f_ ….. ~ ~..c.\; .: – • ..:.·.s ~– .. ~·- • .’ .•_:·} \ ;: ..,. .

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Service-Information$ Group: 12 March Bulletin No.: Engine – Electrical 1982 12 006 82 (2061) – For U.S.A. and Canada only – RE: OVERHEATING OF ELECTRONIC CONTROL (BLACK BOX) Dear Dealer: It is possible that the electronic “black box” can malfunction because of overheating, due to a poor heat transfer between the “black box” and the heat sink. This problem is aggravated by a build-up of corrosion between both heat conducting surfaces, isolating one part from the other. To prevent this, a heat transferring anti-corrosive material is applied to these mating surfaces between the 11black box” and the heat sink. (…

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Service-Informatio&n Group: 12 Engine – Electrical March 198 2 Bulletin No.: 12 005 82 (2055) – For U.S.A. and Canada Only – RE: Idle Speed Variations Dear Dealer: It is possible that after some high mileages, models equipped with electronic ignition (starting with all 1981 models), that the idle speed becomes erratic after reaching its normal engine temperatu~e. Normal idle speed is at 950 ± 150 RPMs. If the·apove problem exists, proceed as follows: • ..:,::;·_·.’, -~., .. -.:::.-,_ -~~: (1) Make sure that ignition timing, _idle adjustment ,,_/-~l· ·~• valve cle~~ances are cor,:;,~c:t::,~,,.,.,..,d::~~\ • \ i}•~~;:~~~~- • ., •…

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Service-Informatio&n Group 12 September Bulletin No. Motor-Electrics 1979 12 004 79(2003 – For U.S.A. and Canada Only – Subject: Battery – Starter Cable R 65 Special attention should be given to the clearance of the cable between starter and engine housing. If the cables are installed as per Illustration No. 1, a possibly serious short could occur. Check all R 65’s in stock immediately, and others upon the next regular service check. ‘ ) The correct assembly is shown in Illustration No. 2. In addition, after the nut is tightened, push down the end of the cables, away from the…

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Service-Informatio&n Group 12 September Bulletin No. Motor-Electrics 1979 12 003 79(2002 – For U.S.A. and Canada Only Subject: Change of Spark Plug Identifications Bosch has changed their identification of their spark plugs used in our motorcycles: BOSCH Old New w 175 T 30 w 7 D w 200 T 30 w 6 D w 225 T 30 w 5 D w 230 T 30 w 5 D 1 w 240 T 1 w 4 A 2 w 240 T 2 w 4 C 2 w 260 T 1 w 4 A 1 w 260 T 2 w 4 C 1…

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( l Service-Information$ Group 12 September Bulletin No. Motor-Electrics 1979 12 002 79(2001 – For U.S.A. and Canada Only – SUPPLEMENT I Subject: Improved Distributor Contact Breaker for R 65, R 80/7 to R 100 RT By mistake, a white plastic cap was included in the new set of contact breakers, part no. 12 11 1 243 969. Please be sure not to install this white plastic cap which, if installed, will interfere with the operation of the contact breaker arm. If you have, in the past, installed the above set of contact breakers, please inspect them upon the next…

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, … –. Service-lnformatlon 6\ BMW HOTORRAD GmbH Motorcycles: R 6 5 – R 100 RT Munich, July ’79 Service Technical Group: RM-K-11 da Engine Electrical. -1 ~., CO2 79( .., ,-,…..,.,.0 . . – – For U.S.A. and Canada Only – Subject: Stiffer Contact Breaker and Change in Distributor For All 1979 Model;; Dear Dealer: A new contact breaker assembly (BMW Part~ 12 11 1 243 969) is available in case a misfire occurs above 6500 engine rpms even the timing and carburetion is correct. Caution!! Due to the increased pressure of this contact breaker the lubrication of the…

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( SERVICE SERVICE BULLETIN 10-78-18 NS BUTLER & SMITH, INC. NORWOOD, NEW JERSEY 07648 COMPTON, CALIFORNIA 90224 1979 Ignition System Group 12 – Engine Electric Dear BMW Dealer: Due to certain technical improvements on our latest models, the following alterations have to be considered when servicing BMW motorcycles: Check dwell an?le (120° + 3%) every 7500 km 5000 miles): disconnect the battery, remove the 3 Alle·n screws (5mm) and take off the generator cover. Remove contact breaker housing cover by loosening slotted head screw. Unscrew the spark plugs and turn the engine clockwise, looking from the front, by means of…

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.. SERVINICFEO RMAllffi, Tech.Cust. Service VKT 20 Gi/Zr Motorcycles R50/5,R60/5,R75/5 Group: Engine Mtinchen, April 7: No. 3/71 (308) e1 ~· — Ref.: Engine oil recommendations Dear Sirs, Following latest tests and developments we have made up new engine oil recommendations for our new motorcycles: Periods of oil change eutside temI!. T;lEe of oil Brand-HD-oil for Otto engines Single r~nge Multioil -prefe- range oil rable – All year over every Over+ 30°0 SAE 40 6000 km latest after most~y over SAE 30 SAE20W,il_ 6 months. + 10 C SAE20W50 At exclusive short distance use O outi~de zemp. below O C –…

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SERV•1 ICNEFO RMAllON Tech. Customer Service VKT 20 fm/Zr/Go Motorcycles R50/5,R60/5,R75/5 Group: engine MUnchen,Jan. 71 No. 2/71 (303) eng Ref.: Engine ventilation Dear Sirs, in order to avoid – as it happened in some cases – the contamination by oil concenoo.te of the Micronic air filter inserts, a new ventilation hose, ordering No .• 11 15 1 255 146, started in the series with chassis No~ 2 901 704 2 932 473 2 973 142 – R 50/5 – R 60/5 – R 75/5 Please refit all engines of your district during their next workshop visit with tbis new ventilation…

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