Manufactured by SPI OEM style piston kits Includes 2 pistons, ring sets, wrist pins, circlips Engineered to provide the best possible path for combustion chamber heat transfer to the cylinder walls All pistons, rings pins, and circlips are manufactured to OEM specifications All individual components are interchangeable with original parts Piston weight compatible with original piston Pistons are for standard bore size 60.00mm Made in Taiwan Fits 1978 Yamaha Enticer 340 ET340 1979 Yamaha Enticer 340 ET340 1979 Yamaha Enticer 340E ET340E 1980 Yamaha Enticer 340 ET340 1980 Yamaha Enticer 340E ET340E 1981 Yamaha Excel III 340 EC340 1982 Yamaha Enticer 340 ET340 1982 Yamaha Enticer 340T ET340T 1983 Yamaha Enticer 340T ET340T 1983 Yamaha Excel III 340 EC340 1984 Yamaha Enticer 340 ET340 1984 Yamaha Enticer 340T ET340T 1984 Yamaha Excel III 340 EC340 1985 Yamaha Enticer 340 ET340 1985 Yamaha Enticer 340T ET340T 1985 Yamaha Excel III 340 EC340 1986 Yamaha Enticer 340 ET340 1986 Yamaha Enticer 340T ET340T 1986 Yamaha Excel III 340 EC340 1987 Yamaha Enticer 340 ET340 1987 Yamaha Enticer 340T ET340T 1987 Yamaha Excel III 340 EC340 1988 Yamaha Enticer 340 ET340 1988 Yamaha Enticer 340T ET340T 1988 Yamaha Excel III 340 EC340 1989 Yamaha Ovation 340 CS340 1989 Yamaha Ovation 340 LE Electric Start CS340E 1990 Yamaha Ovation 340 LE Electric Start CS340E 1990 Yamaha Ovation 340 LE CS340E 1992 Yamaha Ovation 340 LE CS340E 1993 Yamaha Ovation 340 LE CS340E 1994 Yamaha Ovation 340 LE CS340E 1995 Yamaha Ovation 340 LE CS340E 1996 Yamaha Ovation 340 LE CS340E 1997 Yamaha Ovation 340 LE CS340E 1998 Yamaha Ovation 340 LE CS340E 1999 Yamaha Ovation 340 LE CS340E 2000 Yamaha Ovation 340 LE CS340E