Re: Johnson 1990 90 hp can't get up to full throttle to plane off
Noticed you weren't getting a response but here's what they would tell you if you did. Get a manual, preferably the original from KENCOOK, I too recently aquired an older Johnson and without this book I'd be screwed trying to depend on someelse to help. They may be a tech guy chime in sooner or later but if your like most of us on here, you just want to know how to do it yourself and the book gives great instruction. In my book they look to be the bottom 2 orfices on the outside of the float housing on the sides. Good luck.
