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gasolinealcohol-13-009-84-2134-1284
Service-Information Motorcycle Group: 13 BMW of N.A. Service Department Fuel Supply & Adjustments December 1984 13 009 84 (2134) For USA and Canada Only GASOLINE/ALCOHOINL BOXERA ND K MODELS It has come to our attention that many oil companies are selling gasoline mixed with up to 10% alcohol. This mixture can cause corrosion in aluminum, brass, rubber, and plastic parts — all of which can be found in our fuel system. Attached is a reprint of an article from American Motorcyclist Magazine, September 1984. This excellent report describes the effects of alcohol on motorcycles. A simple test is provided so…
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intake-system-modification-13-007-84-2120-884
( Service-InformationM otorcycle Group: 13 BMW of N.A. Service Department Fuel Supply & Adjustments August 1984 13 007 84 (2120) Modifications to the Intake System on R80GS, R80ST and R80RT Models For USA and Canada Only As a means of optimizing the part-load power characteristic on these models and reducing fuel consumption, the intake system has been modified and the followi,19 new parts incorporated: 1. Cover for air cleaner housing Part No. 13 72 1 337 675 with 2 intake orifices of different sizes (as on R65 and R65LS) 2. Carburetor Left: Bing V 64/32/351 Part No. 13 11 1…
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high-altitude-adjustment-13-005-83-2080-1183
Service-Informatio&n Group 13 November Bulletin No. : Fuel Supply & 1983 13 005 83 (2080) Adjustment -For U.S.A. and Canada only- RE: HIGH ALTITUDE PERFORMANCEA DJUSTMENT (Over 4,000 feet above sea level for all 1978 – 1983 models) Dear Dealer: EPA requires from the manufacturers of motor vehicles to provide altitude performance instructions. (This requirement is applicable to all motor vehicles to which Title II of the CAA a~plies.) To improve the emission/performance of. low altitude vehicles when operated at a high altitude, a main jet change, as recommended in the enclosed ,list, is necessary. ·, . When such a…
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pulse-air-system-modification-13-004-81-2035-581
Service-Informatio&n Group 13 May Bulletin No. Fuel Supply And 1981 13 004 AdJustments – For U.S.A. and Canada Only – Subject: Optional Modification to 1980/81 Pulse Air System Dear Dealer, 81 (2035) An effort is continuously at work at BMW to refine it’s technology in the motorcycle market. To enhance customer satisfaction through our dealer network, BMW has decided to make available it 1 s refined pulse air system to owners of 1980 and some 1981 mod.e l BMWm otorcycles as we,11 as any unsold units ~ at your dealership. \,:f/’ This pulse air modification kit can be 0.1::,¢.er:d_from our…
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air-intake-modification-13-003-80-2021-580
Service-Informatio&n r–~- Group 13 May 1980 Bulletin No..: ‘ Fuel Supply & Adjustment 13 003 ao(2021) I – For u. S. A. and Canada Only – Subject: Air Intake Modification for all 1980 Models Subsequent to the start of 1980 model production, it was discovered that a modification to the air filter housing top was beneficial to the air intake/carburetion systems. All 1980 models should be checked to ascertain if this modification was performed during manufacture. If not, it should be performed by the dealer. The modification consists of drilling four (4) holes in each air horn as indicated in…
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carburetion-13-002-79-1068r-579
Service-lnformation 0 Service Group: 1 3 Munich, Yray 1979 RM-K-1 bl-ur Fuel supply & adjust.’11.ents 13 002 79 ( 1068R) For U.S.A. and Canada only Subject: Carburetion – All 1979 R 65 Models Dear Dealer, At low altitudes it may be possible that the ca=buretors on some R 65 models are too lean in the beginning of the carburetor needle range (below 4000 rpm}. This leanness could influence gas response slightly. We therefore recommend to raise the needles to the 3rd notch ( position from the standard 2nd position. This change should only be carried out when necessary due to…
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carburetion-1-74-122M-674
\ \ •; Service-Information Cr1 Tech.Cus~.Service VS-2011 kl/Kr/fm Re: Carburettors Gentlemen: Motorcycles R60/6 – R90 S Group: 13 Munich, June ’74 1/74 (122 M) e Below please find a list showing the standard carburettors for our /6 models. This information bulletin replaces the Number 7/73 (090 M) Service Information 11Fuel Preparation and Regulation. n CarburettorT ypeB ing,l eft CarburettorT ypeB ing,r ight CarburettorT ypeO ellorto, left with cold start equipment CarburettorT ypeO ellorto, right with cold start equipment CarburettorI .D. 111111 Main jet Needle jet Jet needle number Needle posi hon Idling jet Idling air jet Idling air screw/ Idling…
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carb-13-022-91-2456-591
.. – Service-ln(ormationM otorcycle BMW NA Service Department Group: 13 Fuel. System . May 1991 13 022 91 (2456) For .USA Only ·Carburetor – RlOOGS – 40 mm (Information only, Hot us Mode1s) .Note: condition: Cause: Remedy: Series All U.S. models have 32 mm carburetors . Carburetor slide rattles at various engine speeds (usually one side of engine). Engine falters when braking if the choke is on and the engine is cold. The carburetor slide oscillates vertically in the slide chamber. Fuel is reaching the choke reservoir via the bleed valve. A rubber “O” ring has been fitted to the…
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high-altitude-adjustment-13-021-90-2440-1290
Service-InformationM otorcycle BMW NA Service Department Group: 13 Fuel Supply & Adjustment December 1990 13 021 90 (2440) For USA Only High Altitude Perfonnance Adjustment: Over 4000 Feet Above Sea Level for all 1978 – 1991 Models The EPA requires the manufacturers of motor vehicles to provide altitude performance instructions. {This requirement is applicable to all motor vehicles to which Title II of the CAA applies). To improve the emission/performance of low altitude vehicles when operated at a high altitude, a main jet change, as recommended on the enclosed list, is necessary. When such a vehicle is changed to high…
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carb-vibration-13-020-90-2414-890
Service-InformationM otorcycle Group: ©BMW of N.A. Service Department 13 Fuel Supply ·•Adjustment August 1990 13 020 90 (2414) For USA Only Carburetor Vibration – 1988 1100 Complaint: Problem: Remedy: Warranty Status: Presence of fuel stains on the outside of the carburetor and float bowl. This could occur when engine is running at certain higher rpm’s. The carburetor can vibrate at certain speeds (usually high-speed), causing an increase in the fuel level in the float bowl. First, ensure that float bowl gasket is in good condition, that no contaminants are present in float bowl, and that fuel level is to specificatiqn.…
