Johnson and Evinrude Champion Spark Plugs
HP
Year
Spark Plug
Gap
Two Stroke
1.5
1968-1970
J6C
.030
2 / Colt / Jr.
1971-1990
RJ6C
2.0 / 2.3
1991-2001
QL87YC L87YC
2.5
1987-1988
QL86C
3
1952-1968
3.3
3.5
2001-Thru
3 / 4 / 4 Deluxe
1989-2001
Ultra / Excel 4
QL77JC4 L78V
.030Surface Gap
4
1969-1976
1977-1987
QL86C L86C
1988
QL77JC4
4.5
1980-1985
5 (109cc)
1998-2001
BPR7HS
5.5
1954-1964
6
1965-1976
1977-1979
View Plug
6.5 Comm.
1981-1993
7.5
1952-1958
7.5 / 8 / 8 Comm.
1980-2001
QL86C QL77JC4
9.5
1964-1973
J4C
9.9
1974-1976
UL81C
1977-1992
QL77JC4QL82C
View Plug View Plug
10
1959-1963
10 Comm.
1991-1992
10 / 15 Comm.
1993-2001
QL82C
14
1988-1989
14 Comm.
1981-1991
15
9.9 & 15 Big Bore
1993-Thru
1954-1956
15 Comm.
18
1957-1973
18 JET (25 HP)
1995-2001
20
1966-1973
25
1952-1955
20 / 25 / 28 / 30 / 35 (2-cyl)
1977-2005
QL77JC4 QL82CL78V
25 Comm.
1981-2001
QL16V L16V
Surface Gap
25 (3-cyl)
1995-1997
28
1962-1964
28 JET (40 HP)
1992-2001
QL78YC
30
1956
33
1965-1971
35
1957-1959
1976
35 (3-cyl)
35 JET (50 HP)
40
1960-1973
40 Comm. (43 cu. in.)
1981-1990
40 Comm. (45 cu. in.)
1984-2001
QL16V
45 / 55 Comm.
1986-2001
50 V4
1958-1959