Category: Service Bulletin

( Service-InformationM otorcycle Group: ©BMW of N.A. Service Department 11 Engine June 1990 11 043 90 (2412) For USA Only ImprovedB oxer Valve Component-s UnleadedF uel The evolution of the Boxer engine, due to emission contro7s and changing fuels, has resulted in a net increase in combustion :emperatures from 1978 to present. Over this period of time numerous changes have been made to components to maintain engine reliability at these higher temperatures. The changes made to the 1988 and later RlOO models have proven so effective in minimizing valve lash wear between service intervals that these components have been adapted…

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( Service-Information Motorcycle BMW NA Service Department Group: 11 Engine March, 1988 11 038 88 (2298) For USA Only Engine Identification Numbers – Boxer Models Some states require that the motorcycle engine number be recorded with the State Department of Motor Vehicles. Location of Stamping: Each Boxer crankcase. the engine, engine number is stamped on a machined surface This surface is located on the forward lower left below the exhaust pipe and frame tubing. on the side of The stampings are on two levels. The upper level is broken into 3 sections. This row of numbers is the engine number.…

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Service-InformationM otorcycle BMW of N.A. Service Department Group: 11 Engine June 1986 11 034 86 (2214) For USA Only Oil Supply to the Rocker Shafts — Boxer Engines Situation: Assembly: Note: Very truly yours, BMW OF Richard Dampf Examination of parts returned under warranty has revealed that the rocker shafts are sometimes installed incorrectly, so that the oil supply cannot reach the rocker pivot bearings. The rocker shafts have an off-center punch mark on one end. Make sure that this mark is at the TOP on all shafts, and is FACING OUT, away from the cylinder head. This is to…

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( ( Service-Information Motorcycle BMW of N.A. Service Department Group: 11 Engine May 1985 11 031 85 (2162) For USA and Canada Only Connecting Rod Weights — Kand Boxer Models General Information: Note: For any engine with more than one cylinder to run smoothly, it is important for the weights of each connecting rod to differ as little as possible from each other. BMW connecting rods are divided into seven weight catagories when manufactured, differing in weight by 7 – 8 grams. They can be identified by color coding. Only connecting rods in the same weight catagory should be installed…

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( ( Service-Informatio8n Group 11 March Bulletin No. Engine 1984 11 026 84 ( 20 96) – For U.S.A. and Canada Only – RE: NEW VALVE CLEARANCES ALL MODELS FROM RS0/5 TO PRESENT EXCEPT R65 & R65LS Dear Dealer: Recent experience has proven the need to enlarge the exhaust valve clearances on all above models. Clearances are to be set when the engine::is c’?ld. – ..:..: – ‘·~;-·:·- .-.~.; ·:· ~ ·;.t,J~ ..- —–··· -· Va-lve_tl~arahce .. ·.i’ .—~~:\_=· P.D.I. – 600 milei: Intake o ;1smn(.: .. (-.• 0_06-~->- ·Exhaust .•· –0. 25nun–;( .;-·ofd1J?-,”. • . – . • —…

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Service-Informatio&n r Group 11 November Bulletin No. : Engine 1983 11 025 83 (2088) – For U.S.A. and Canada Only – RE: ENGIN1′ IDENTIFIC.Z\TION NUMBERS Dear Dealer: We have decided to no longer match the engine number with the frame or 17 digit V.I.N. numbers. Each engine is now stamped on a machined surface on the crankcase. This surface is located on the forward lower left side of the engine, below the exhaust pipe and frame tubing. The stampings are on two levels. The first: the unique engine sequence· _nu111_bers, identifying model year, week of production·:·and- the sequence number. •…

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( ( Service-Informatio&n Group 11 May Bulletin No.: Engine 1983 11 024 83 (2077} -For U.S.A. and Canada Only- RE: INSTALLATION OF THE OIL FILTER HOUSING CANISTER Dear Dealer: With the introduction of the R65 and change in the oil passages on all motorcycles beginning in 1980, it is possible in isolated cases that a small oil pressure drop can occur. ·., Should the clearance be as described below, we suggest referring to Service Information 11 011 _7 8.a}Jl061R) for further details. ..>;:;_x”-:>, i:\ we suggest _th~~during any se:cvice. oi2:rt?i;,uild31, the depth bof the cf~~i,”caz:iister, s_l~:7,~{‘..t;_9;’.~i~nkcase cover ~ . ·~·……

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Service-Informatio0n Group: 11 March Bulletin No.: Engine 198 2 11 023 82 (2052) – For U.S.A. and Canada only – RE: CYLINDER BASE O-RING Dear Dealer: For replacement, an additional “O”-ring has been introduced with an 0.2 mm thicker diameter. This new O-ring will fit all older models with “O” rings of a diameter of 2 mm. and will enhance better sealing. This new 2.2. mm O-ring is available through regular parts channels under Part No. 11 11 l_\33} 567 :-~–; Yours truJ,y;; OF foRTH-AMERICA,·._~Nc> ~- eas National Service Manager \ HN/vaa ‘ease route and initial before filing

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Service-Informatio&n Group 11 February Bulletin No. : Engine 1983 11 024 83 {2072) – For U.S.A. and Canada Only – RE: Adjusting Procedure in the Event of Uneven Idling Dear Dealer: If comolaints are received of motorcycles idling unevenly, the recornrnended 9rocedure is as follows: 1. Adjust valve clearances with engine cold (20°C/68°F) _/ Above 1000 km< I / Up to 1000 km (app. 600 miles) (app. 600 miles) ~ Inlet Exhaust Inlet Exhaust R80G/S - Rl00RT R65 0.15 mm 0.20 mm {0.006 in) {0.008 in) 0.15 mm (0.006 in) 0.25 mm (0.010 in) 0.10 mm (0.004 in) 0.10 mm…

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