Yamaha 50GETO (62F) - Right side bracket / PTT removal stuck

[tutis2002]

Hello everyone!

I am writing to the forum to seek guidance from anyone with experience in disassembling the Power Trim & Tilt (PTT) assembly on 3-cylinder, 2-stroke Yamaha outboard motors (models 50/60/70 HP, 62F / 6H3 block), specifically on a Yamaha 50GETO, model 62F, long shaft (L), serial number 504715.

My main objective is to extract the complete Power Trim unit to replace the electric motor (which has a broken, threaded shaft stuck in the block) and take the assembly to a workshop for extraction on a workbench. To achieve this, and based on what I have researched, it is necessary on my Yamaha motor to separate the arm that acts as the right side bracket.

So far, I have carried out the following steps according to the standard service procedure:

1. Release of the central hydraulic: The manual valve for hydraulic bypass was turned, the tilt-lock pin/clip was removed, and the central pin of the main ram was taken out.
2. Trim side bolts: The 6 side bolts of the Trim body have been removed (3 on the left side and 3 on the right side).
3. Anode and brackets: The lower sacrificial anode was disassembled, and its fastening bar/bolt was completely removed.
4. Transom anchors: The 2 through-bolts securing the right side bracket/arm to the transom plate have been completely removed.
5. Steering connection: The steering was released by loosening and completely removing both the nut securing the cable housing and the threaded nut connecting it to the right arm of the motor.
6. Electrical connections: The blue and green wires at the relay box and the lower ground terminal were disconnected.

Once all the above elements are removed, the right side bracket remains physically attached to the structural body—meaning it won't budge at all.

Reviewing the service manual's exploded diagrams (Chapter 7, BRACKET UNIT), I do not see any additional bolts or threaded fixings that should hold both parts together at this point. Here is the link in case you need to download the manual: Manual Montaje YAMAHA 50 GETO 62F

I have applied heat and tapped it, but I cannot get it to separate. In this video for a model like mine, it seems to separate easily (you can turn on subtitles and auto-translate): YouTube Video

As you can see, I need help because I don't know how to make the right side bracket move freely outward. I am unsure if there is an internal circlip, seal, collar, or pin that is not visible at first glance and continues to hold the arm back.

I know that seizing due to galvanic corrosion is common in the swivel tube / bushing area on this series of Yamaha engines, but I have applied heat with a heat gun and struck it with a nylon mallet, and I still can't get it to budge.

Before trying something more aggressive—like placing a jack between both arms and applying slight pressure—I wanted to know if anyone has encountered this problem and how they solved it.

I am sending you a link with a PDF containing images and the steps I have taken so far: PDF with images
Best regards to everyone, and thank you very much in advance for your help!

 

[boscoe99]

Have you tried to remove the trim and tilt unit from the motor without removing the clamp bracket? In a number of Yams this will work.

Disconnect the electrical leads. Trim the motor fully upwards and lock the motor in place. Remove the upper piston attach parts from the motor. Trim it fully inward. Remove the lower fasteners. Slide the trim and tilt unit out.

 

[boscoe99]

When it comes to loosening a clamp bracket you may find that sealant is holding it in place.

 

[boscoe99]

 

[tutis2002]

Thanks for the feedback!

Regarding sliding the Trim & Tilt unit out without removing the clamp bracket: on my specific Yamaha 50GETO model (62F block), it is physically impossible to extract the PTT unit with both clamp brackets in place. The body of the electric motor and the hydraulic reservoir strike the inner frame of the right clamp bracket—there is simply not enough side clearance to tilt, angle, or slide the assembly free without spreading or removing that right arm.

As for the sealant on the transom: I have spent quite a bit of time scraping and cleaning away all sealant residue from every accessible area where the bracket contacts the transom plate.

I am attaching a few images so you can see the current state, the lack of side clearance, and the contact points I have already cleared.

 

[tutis2002]

In the photos, you can see the marks from driving a screwdriver in and tapping it with a hammer to separate the bracket and prevent any friction between it and the wooden backing plate it rests on... In addition to clearing out all the sealant from the entire area, at least as far as I could reach.

 

[boscoe99]

All Yamaha 2 stroke 50's are not the same. What is the year of the motor?

 

[tutis2002]

All Yamaha 2 stroke 50's are not the same. What is the year of the motor?

It is a 2001 model.

The full ID tag on the clamp bracket reads:

• Model: Yamaha 50GETO (62F block, Long shaft)
• Year: 2001
• Serial Number: 504715

The link I provided to the PDF file contains photos and the engine's identification plate.