I just recently bought a 175 Johnson, that I still have no idea what the model number or year is. I have it narrowed down to 1982-1984 just by talking to some of you guys and some guys from johnson tech support. My question is: Can I buy a used 1983 OMC manual that I found on ebay for $25, and it work? The manual states it covers 2hp-V6 (mine is V6) 80-235hp.