BMW 2-Valve Twins Owners Workshop Manual 1970-1993 473cc, 498cc, 599cc, 649cc, 745cc, 797cc, 898cc and 979cc (Haynes Manuals)

Note: The 4-valve engine introduced in 1993 is not covered in this manual. Models covered: R45.475cc UK only 1978-85; R50. 498cc. UK1970-73, US 1969-73;R60 599cc UK 1970-78, US 1969-78; R65, R65LS 649cc UK 1978-88, US 1979-87; R75 745cc UK 1970-77, US 1969-77; R80, R80/7, R80G/S, R80GS, R80ST, R80RT.797cc UK1977 on, US 1977-87;R90/6, RS,898cc UK and US 1973 to 1976,; R100, R11/7, R100CS, R100GS, R100R, R100RS, R100RT, R100S, R100SP, R100SRS, R100ST, R100T, R100TR, 979cc UK and US 1976 to 1984, 1987 on.