Re: 1986 Yamaha 130 want to remove oil injection ???
I never heard of any problems with Yamaha's injection system. There was an inline checkvalve update once upon a time, but I think that was about the only thing. And that was just an upgrade, nothing serious. The problems I hear most about involve early Johnnyrude VROs and Merc's pump drive gear failures. That was back around 1986. The American companies were playing catch-up. Japaneese outboards had them first (not including those funky Accumix and Autoblend gadgets).