Osceola Power Equipment was purchased by Strikemaster. Call them. Apparently they still offer support for the Osceola auger. I read in a post in another forum that the one that you have is the same as the Strikemaster Mag 2000. They just rebranded it with the Strikemaster name. I't supposed to have a 2hp Tecumseh engine.
http://demandware.edgesuite.net/aagv_prd/on/demandware.static/Sites-rapala-Site/Sites-rapala-Library/default/v1389095991950/downloads/strikemaster/2hp_operator_manual.pdf?id=11Company Name Address City State/Province Zip Phone Website
Abele Tractor & Implement Co 72 Everett Rd Albany NY 12205-1418 5184384444
Turnpike Power Equipment 174 Western Tpke Altamont NY 12009-2000 5183558823
City Cycle Shop 19 Northern Blvd Amsterdam NY 12010-2911 5188422220
Mark Zanella's Repair Shop 120 Wallins Corners Rd Amsterdam NY 12010-1817 5188432476
Algers Power Equipment 307 County Route 47 Argyle NY 12809 518 638 6340
Jeffs Repair Shop 1518 Columbia Tpke Castleton On Hudson NY 12033-9545 5184793735