börje jansson 

Statements about this table:
there be no win in the 250cc class in 1971
1971 be the earliest year that the yamaha team rank 21 with less than 45 point
yamaha be in the 1st rank in 1969
year
class
team
points
rank
wins
1969
125cc
maico
4
40th
0
1969
250cc
yamaha
45
5th
0
1970
125cc
maico
62
3rd
0
1970
250cc
yamaha
34
5th
0
year
class
team
points
rank
wins
1971
125cc
maico
64
3rd
0
1971
250cc
yamaha
9
21st
0
1972
50cc
jamathi
10
12th
0
1972
125cc
maico
78
4th
2
year
class
team
points
rank
wins
1972
250cc
yamaha
36
8th
1
1973
125cc
maico
64
4th
1
1973
250cc
yamaha
12
18th
0