Well, you had one who responded. Let's see if he comes back.

I seem to recall folks being able to remove the tilt piston without removing the assembly but I don't know why you would want to do it this way. Just as easy and perhaps better to remove the assembly and do the work on a bench.

There's YouTube video that I watched that showed how to do both -- repair on boat and remove the whole unit

Search you Tube -- it's there in several forms

FishermanTom;

I've got a Performance 40 with three 2005 F225s. I purchased these 11 year old Yammies when they were factory new in 2005.

After the first five years, one of my T/T wasn't working right. I found the 17MM socket wrench size fitting to fill these Yamaha power Trim/tilts, and added some transmission fluid. It then worked fine.

Yamaha engineers provided this "fill" hole for my F225s, and I'm sure your F250 has one too. Look above the water line on your T/T. It should be right in front of you.

My other two T/Ts on the other two F225s engines started leaking at about the same time (2010).

Because it is 20 miles (and @$160 in gas) to the Marina to haul my 40 footer, and it costs $560 just to haul, I decided it was smarter, less time consuming, and cheaper to learn to add hydraulic fluid every 6 months to a year, and forego the expense of three $65 seal rebuilding kits Yamahas sells for leaking T/Ts ($200 if you have 3 engines) + the mechanic’s expertise you should have to do the job right.

I’ve seen rebuilt T/Ts for my F225s costing $800 each – but how do you know the rebuilt was done right. I’ve never priced new T/Ts from Yamaha, but I bet they are upwards of $1,400 each (and I need three).

I back my boat up to a ramp about 40 yards from my slip when the "tide is coming up" and it takes me 15 minutes to top off my three F225 T/T.

Once topped off my T/T work perfect, and I’ve been doing this for 6 years.

The costs for me has been about $20 in hydraulic fluid (two quarts?) – as compared to the cost of replacing with new seals 5 years ago… and probably having to do that job again after another 5 years.

I rigged 8 inches of clear hose that "just" fits in the Yamaha f225 T/T fill hole, and run it to a small squeeze bottle with a narrow spout filled with hydraulic fluid. I just tilt the bottle up and gravity does the filling.

If you search my posts here at the Yamaha forum, I’ve written about how I have maintained my T/Ts before.

Remember, Yamaha didn't put a T/T fill hole on your F250 so you wouldn't use it.

Meant to add, use Yamaha T/T fluid as it is made to absorb small amounts of water and better for your T/Ts

Poorsche;

Thanks, I have searched diligently and have only found the trim videos not the tilt, feel free to PM me the link. As I understand removing the whole unit you have to split/loosen the engine bracket, I wanted to stay away from that if possible.