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 altitude settings, a label (see sample below) must be affixed to the rear fender next to the original vehicle emission control label. This label should be requested through the Motorcycle Service Department in writing by quoting: No. 2 121 222 For customer information purposes, please display a copy of this Service Information in your showroom or customer waiting area. ( Very truly yours. BMWof North America, Inc. Frank Stevens Richard Dampf National Service Manager Motorcycle Group National Technical Manager FS:jel/237.7 Att. ,::”tiVt.E HICLEE M1SS10N·coNIBOLIN FORMATIONU PDATE ~,, BAYERISCHEM OTORENW. ERKE:A G • , THIS VEHICLE HAS BEEN MODIFIED TO IMPROVE EMISSION-··- •• – CONTROL PERFORMANCE WHEN OPERATED AT HIGH ALTITUDE INFORMATION ON ALTITUDE PERFORMANCE ADJUSTMENTS MAY BE OBTAINED FROM ANY BMW OEAt£RSHIP._ 2 121 222 Please initial and route to the following before filing Service I Parts ! Sales ! Warranty / Technicians Jet Size Jet Size Mooel f,tide l High MJdel ~l High Year T.Yf:€ Altitude Std. Year T,Yp- Altitude Std. n 1978 R8J/7 *142 145 1985 R65 135 138 Rl00/7 *142 145 R65LS 135 138 R100S *158 160 P80 130 135 RlOORS *158 160 R8JRT 130 135 ROOGS 130 135 1979 R65 138 140 1986 R65 125 130 R8J/7 *142 145 R8J 130 135 RlOOS *162 165 R8JRT 130 135 RlOOT *162 165 PID3S 130 135 RlOORS *162 165 All K100s + X RlOORT *162 165 All K75s + X 1900 R65 *142 145 1987 R65 125 130 R8J/7 148 150 R8) llJ 135 RlOOS *162 165 R8JRT 130 135 RlCOT *162 165 All KlOOs + X RlOORT *162 165 All K75s + X 1981 R65 *142 145 19!!3 Rlax;s llJ 135 R8lGS 148 150 RlOORS 130 135 RlOO *158 160 RlOORT l:Jl 135 All KlOOs + X RlOOCS *158 160 All K75s + X RlOORS *158 160 ( RlOORT *158 160 1989 RlOOG•S 130 135 RlOORS 130 135 1982 R65 *142 145 RlOORT 130 135 R65LS *142 145 All KlOOs + X ·~ 148 150 All K75s + X RlOO *158 160 RlOOCS *158 160 199:l RlOOGS 130 135 RlOORS *158 160 RlOCXPi/5D 130 135 RlOORT *158 160 RlOORS 130 135 RlOORT 130 135 1983 R65 135 138 Klca..T + X R65LS 135 138 KlOORS R8lGS 148 150 (8 valve) + X ROORT 148 150 K75 + X ROOST 148 150 K75S + X RlCO *158 160 K75RT + X RlOORS *158 160 Kl No adj. needed RlOORT *158 160 KlOORS (16 valve) Self-Carpensating 19&1- R65 135 138 R65LS 135 138 1991 RlOCXi5 13′.l 135 Ra:x;s 148 150 RlCOGPS/D 130 135 ROORT 148 150 Rl