YAMAHA YZ490 (K) 1983 Owner's Service Manual 23X-28199-70 #306

YAMAHA  YZ490 (K)  1983  Factory  Owner's Service Manual, 136 pages  1st Edition September 1982    Printed in English & French  OEM Ref. # 23X-28199-70  NOS  New Old Stock.   #306/A-B205/A

Although the cover of this manual shows some minor shelf ware, the inside is clean and in excellent condition.