Hi,I need to buy a power pack for a 1989 VRO Evinrude long shaft but,in the charters that I been looking for it only shows up to 1987 and then it jumps from 1991 to 1992, Can somebody help me get the part number for this part, the part goes behind the power head all the way on the top close to the flywell,just behind where the spark plugs are at,but all the way up on the head where the flyweel its at,any help im going to apreciated, thank for any help.