Re: 125 hp force tilt/trim problem
I advise against trying to fix valve bodies at home. It is not easy to get working again and even more difficult to make it dependable. It's just not worth messing with.
Every year there are a few valve bodies in spring. By July they are on back order and the only people who still have stock want $300+. I am hoping that this year is different and that we will see a reliable source of new Valve bodies in the $240 range. You can also get your existing valve body rebuilt for about half that. do a google search or check ebay.
I see that you have a 1986. One thing you want to be careful with is the size of reservoir. If you change the reservoir from short to tall then you change the oil tubing alignment. The aluminum is super soft and the SS tubing is super hard. You will strip out threads if you are not careful. I fix a bunch of 84-87 valve bodies every year with stripped threads. It is almost always caused by replacing a short reservoir with a tall one.