FITS_PRE_1982 Z50_CT70 SL70_XL70 FITS_ALL_ATC70 ALL_TRX70 When using an old type 6volt camshaft please use this oil retainer washer in combination with this high flow oilpump! our number 214M 319J @ ORDER FLOW OF THE PARTS @ click on picture to SEE WHERE TO DRILL ORFICE OUT @ *WASHER, CAMSHAFT ATC70_78_&_UP OTHERS 14105-957-000 1/22M (214M)WASHER, CAMSHAFT I NEVER KNEW WHAT THIS PART DID TILL JUST NOW ???? IT KEEPS MORE OIL IN THE CAM TO FEED THE ROCKER ARMS AS IT FITS CLOSER AROUND THE CENTER BOLT GOING THRU THE CAMSHAFT. THUS KEEPING MORE OIL IN THE CAM/HEAD/ROCKER ARMS OIL NORMALLY FLOWS IN THE CAM FROM THE RIGHT AND EXITS ON THE LEFT BACK TO THE CAM CHAIN SIDE ATC70 78-85, C70 PASSPORT 80-83, CT70 80-82, TRX70 86-87, Z50R 80-91, Z50RD '86 214M