Model
Years
Displ.
Power Output
R50/5
70-73
496cc
32 HP @ 6400 RPM
R60/5
70-73
599cc
40 HP @ 6400 RPM
R75/5
70-73
745cc
50 HP @ 6200 RPM
R60/6
74-76
599cc
40 HP @ 6400 RPM
R75/6
74-76
745cc
50 HP @ 6200 RPM
R90/6
74-76
900cc
60 HP @ 6500 RPM
R90S
74-76
900cc
67 HP @ 7000 RPM
R60/7
77-80
599cc
40 HP @ 6400 RPM
R75/7
77
745cc
50 HP @ 6200 RPM
R80/7
78-84
797cc
55 HP @ 7250 RPM
R100/7
77-79
980cc
60 HP @ 6500 RPM
R100S
77-78
980cc
65 HP @ 6600 RPM
R100RS
77-84
980cc
70 HP @ 7250 RPM
R100RT
78-84
980cc
70 HP @ 7250 RPM
R100T
79-84
980cc
65 HP @ 7250 RPM
R100CS
81-84
980cc
70 HP @ 7000 RPM
R45
79-84
473cc
27 HP @ 6500 RPM
R65
79-84
649cc
45 HP @ 7250 RPM
