NOS OEM Piston & Rings +.25, 1st Over, 1967 1968 Yamaha YCS1 YCS1C 237-11635-00

NEW GENUINE YAMAHA 1968 YCS1 180 PISTON .25 OVERSIZE 237-11635-00-00

Fit For Honda C CT ST 70 DAX C90 CUB 12V XR70R CRF70F Piston Ring 0.25 NOS

NOS OEM 1968 Yamaha YCS1 YCS1C Piston Std Size 49.97 mm 193-11631-00

237-11631-00-98 NOS Yamaha Piston STD 1967 1968 YCS1 Scrambler

NOS OEM Yamaha 1967 1968 YCS1 YCS1 Piston Rings O/S .25 # 164-11601-10

1 NOS Genuine Yamaha IT125 Piston Ring Set 0.25 1st Over IT 125 OEM 3R9-11610-10

1968 YAMAHA YCS1 NOS OEM 1st Over Piston 50.25mm