Featuring a 98% pure copper core and high-grade alumina silicate ceramic for improved throttle response, service life and performance.
Cold-rolled threads
Trivalent plating
Specialized ground electrode designs

Fitment
1978 Suzuki RM50
1979 Suzuki OR50
1980 Suzuki OR50
1986 Yamaha YF60 4-Zinger
1984 Yamaha YT60 Zinger
1985 Yamaha YT60 Zinger
1991 Yamaha PW 80
1992 Yamaha PW 80
1993 Yamaha PW 80
1994 Yamaha PW 80
1995 Yamaha PW 80
1996 Yamaha PW 80
1997 Yamaha PW 80
1998 Yamaha PW 80
1999 Yamaha PW 80
2000 Yamaha PW 80
2001 Yamaha PW 80
2002 Yamaha PW 80
2003 Yamaha PW 80
2004 Yamaha PW 80
2005 Yamaha PW 80
2006 Yamaha PW 80
1983 Yamaha PW 80
1985 Yamaha PW 80
1984 Yamaha PW 80
1986 Yamaha PW 80
1987 Yamaha PW 80
1988 Yamaha PW 80
1989 Yamaha PW 80
1990 Yamaha PW 80