You will need to polish the stainless cover. example buy one extra get one keyring free buy 10 extra get 10 keyrings for free. This will fit both RD250/350LC.
CNC Gear Change Shift Oil Seal Leak Fix Kit For Yamaha RD 350 250 LC & 350 YPVS
For Yamaha Gear Change Oil Seal Leak Fix Kit RD 350 250 LC & 350 YPVS 1973-1979
RD 350 250 LC S/S LASER CUT TUNING FORK CLUTCH ADJUSTMENT COVER
Yamaha RD350Lc Pair Of Mirrors Rd250 lc Rd350 LC RD 350 250 lc Rz -- W1-01
Yamaha RD350Lc Pair Of Mirrors Rd250 lc Rd350 lc Rd 350 250 Rz -- W1-01
Yamaha RD350Lc Complete Headlight Unit Rd250 lc Rd350 lc Rd 350 250 lc D1-03