OEM parts for 1979 Yamaha Street Bike Models Where can I find my model number? RD50M RD50M (2L4) [999] RD50M (2L7) [999] RD50M (2L8) [999] XS250 XS250 (3N6) [999] XS400 XS400 (3N7) [999] XS750 XS750 (3G9) [999]