Re: Can someone please tell me what year?
Hello;<br />Sorry for the lag time, I don't get here as often as I would like.<br />OMC's Service Manual Pt# 507546 lists the information for your engine.<br />The 14Hp, 28Hp, 48Hp, 88Hp, & 148Hp engines built by Johnson & Evinrude were refered to as "SPL's" Special production, Price engines. They were OMC's original Package Boat Motors. At first offering it was the only way you could purchase them. Enough Dealers Requested that they be able to purchase them loose so they made them available loose a year or two later.<br />Your 28Hp is pretty close to a 25 hp, carboration and a differant gearcase seprate the two. The 28hp has a splitline, shearpin type case like those used in the 60's & 70's and earlier small and mid range engines. The 25 had a Thru-hub style case. This was the most defined differance, other then price, the 28's were $7-800. less money. Came in a 20" Remote model only.<br />You can probibly use the manual you have with a little imagination but the above book described is exact.<br />Good luck<br />Rob