BMW Motorrad GMBH Service Bulletins

Updated: 15 January 2021

Click on the Bulletin Number for the PDF file

Group Number	Group Name	Bulletin Number	Date	Subject
-	Engine	1/73 (056M) e	Dec 72	New automatic centrifugal advance
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-	Engine	5/72 (043M) e	Nov 72	Rocker arm bearing supports
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11	Engine	1/73 (073M) e	June 73	Engine with lower compression- BMW R50/5-R75/5
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11	Engine	1/73 (090M) e	Nov 73	Carburetor
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11		1/74 (148M) e	Nov 74	Screw neck for carburetor mounting @ the cylinder head
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11	Technical	2/75 (203M) e	Dec 75	1.Flywheel mounted shaft sealing ring 2. Cylinder head nuts
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11	Engine	2/75 (164M)e	Jan 75	Flywheel mounting/6 models
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-	Engine	11.011.78(1061R)	Mar 78	Engine Oil Circulation
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-	Engine	11 006 78 (1045R)	June 78	Cylinder Head Locating
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-	Engine	11 009 78 (1057R)	Sept 1978	Cylinder base spacer for R60/5-R100RS
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11	Engine	11 015 80 (2017)	Feb 1980	Improved rear main engine seal
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11	Engine	11 014 80 (2015)	Feb 1980	Stealing cap for chain tensioner Bore- from model year 1979 with hydraulic chain tensioner
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11	Engine	11 013 80 (2013)	Feb 1980	Valve clearances on R65-R100 RT
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13	Fuel Supply & Adjustment	13 003 80 (2021)	May 1980	Air Intake Modification for all Models
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-	Instruments	62 001 78 (1063R)	May 78	Electronic Revolution Counter for R60-R100 model '77
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