YAMAHA ORIGINAL OEM SET of 2 PISTONS + RINGS, BRAND NEW, BORE 4th O/S (61.00 mm)
reference piston # 159-11638-00-00reference rings # 159-11601-40-00
Fits the followings :
- 305 YM1 years 1965 to 1966
- 305 YM2 year 1967