Re: 115hp 1988 Mecury Outboard
You won't get a respons about this as everyone on here will recommend you remove that old blend system. It WILL FAIL and your motor will need a full rebuild or be scrap metal. If you hate measureing oil than buy a 4 stroke or a newer 2 stroke that has a better injection system. If you have a measuring system down it doens't take more than 2 minutes to add the oil.
It's part of boating my friend.........and for me there is just something about know that your engine has what it needs and is not depending on a system to add oil.