2019+ Yamaha Connext 7 Inch Gen 2 Delamination? The Watery Bubble Fix
That watery bubble spreading across your Yamaha Connext 7 inch Gen 2 is delamination. The OEM optical adhesive between the glass and the LCD has been known to break down under marine sun and heat, and when it does you get the watery bubble look, glue leaking from the silver strip at the top of the display, and in some cases the LCD sliding down inside the housing. Here is what is happening on 2019 and newer Yamaha jet boats and how to fix it.
In this guide
- What the Yamaha Connext 7 inch Gen 2 is, and the part numbers it carries (F4Y-U8K12-10, F4Y-U8K12-11, and 78350843)
- The 3 ways the OEM adhesive fails: watery bubble delamination, glue leaking from the silver strip at the top, and the LCD sliding down inside the housing
- Why the OEM adhesive breaks down at a Yamaha helm
- How we replace the defective OEM components with our updated anti-delamination design using brand new parts, for half the dealer price
What Is the Yamaha Connext Gen 2?
The 7 inch helm display on 2019 and newer Yamaha jet boats
The Yamaha Connext 7 inch Gen 2 is the primary helm display on 2019 to 2024 Yamaha jet boats and select WaveRunners. It is the second generation of the Connext platform, updated from the earlier Gen 1 with a larger panel, improved resolution, and a revised housing design. It controls speed, RPM, fuel, depth, water temperature, GPS, and audio from a single touchscreen.
The Gen 2 uses different cabling and a different internal panel from the Gen 1. If your Yamaha is a 2019 or newer model, you have the Gen 2. The part number on the rear housing confirms it. Two Yamaha revisions exist, F4Y-U8K12-10 on earlier units and F4Y-U8K12-11 on later ones, along with the Murphy platform number 78350843. All of them share the same adhesive design and the same failure pattern.
Fits 2019 to 2024 Yamaha jet boats including the AR195, AR210, AR250, SX195, SX210, SX250, and compatible WaveRunner models equipped with the Connext 7 inch Gen 2 display.
The 3 Ways the OEM Adhesive Fails
One root cause, three visible symptoms
Everything that goes wrong with this display traces back to the OEM optical adhesive. The touch electronics themselves are reliable, we rarely see a genuine touch failure on a Gen 2. What we frequently see is the adhesive letting go, and it shows up in three ways.
💧 Watery Bubble Delamination
The signature failure. The digitizer separates from the LCD and the gap fills with degraded adhesive, creating a watery bubble look that usually starts at an edge and spreads toward the center. It grows every time the boat sits in the sun.
🎨 Glue Leaking from the Silver Strip
As the adhesive breaks down it turns liquid and leaks from the silver strip along the top of the display. You can see it seeping out at the top edge, and once it starts flowing it keeps going. No cleaning or software fix stops it, the display has to come apart to address it.
📉 LCD Sliding Down
Once the adhesive has fully let go, nothing holds the LCD in position. Gravity and vibration pull the panel downward inside the housing, so the image sits low with a dark band along the top edge. This is the end stage of the same adhesive failure.
🔎 What It Looks Like Up Close
A Gen 2 in our shop showing the bubble pattern in detail. The distortion sits between the glass layers, which is why it moves and shimmers as your viewing angle changes. If your screen matches this photo, the adhesive is actively breaking down.
🎦 Real Yamaha Connext Gen 2 Repair
A 2020 Yamaha jet boat Connext 7 inch Gen 2 in our shop with the adhesive leaking from the silver strip at the top. Watch the diagnosis and what the display looks like with our new anti-delamination LCD installed.
Why the OEM Adhesive Breaks Down
The OEM design at a marine helm, not user error
The Connext Gen 2 is built with an optically bonded LCD stack: cover glass, a glass digitizer, and the LCD panel bonded together with a clear optical adhesive. Under normal indoor conditions this adhesive is stable. At a Yamaha jet boat helm it faces a much harsher life:
- Direct UV all season, open-bow Yamaha helms get full sun for hours every day. UV gradually breaks down the polymer chains in the OEM adhesive until it loses its grip and begins to migrate.
- Heat cycling, the display heats up during every session and cools overnight. Each cycle expands and contracts the layered materials at slightly different rates, opening micro-gaps at the bond interface that let the degraded adhesive flow.
- Marine humidity, once the edge seal starts to give, humidity accelerates the breakdown and gives the adhesive a path to seep out at the silver strip.
- Vibration, hull and engine vibration over thousands of hours works the loosened layers apart and helps pull an unbonded LCD downward in the housing.
How to Remove the Display
About 20 minutes, standard hand tools
The Gen 2 Connext comes out of the Yamaha dash from the front as a complete unit. No heat gun, no dash disassembly, no specialty tools required.
- 1Disconnect the battery before any work at the helm.
- 2Remove the mounting fasteners from the rear of the dash with a standard socket. Set hardware aside to reuse.
- 3Disconnect the wiring harness from the back of the display. Snap a photo before pulling any connectors.
- 4Slide the display forward out of the dash with the bezel attached as one complete unit.
- 5Pack safely and ship with the prepaid UPS label emailed after checkout.
Real Customer Result
2020 Yamaha jet boat, leaking glue and delamination fixed
A 2020 Yamaha owner shipped in his Gen 2 Connext (F4Y-U8K12-10) with glue leaking from the silver strip at the top and the watery bubble starting to spread. Yamaha dealer pricing on a new Gen 2 unit ran over $3,000. We replaced the defective OEM components with our updated anti-delamination design using brand new parts and returned the display within 3 business days.
Why Our Parts Outlast OEM
Brand new anti-delamination design, not the adhesive that leaked
We do not put the same OEM adhesive back in. Every Gen 2 Connext repair replaces the defective OEM components with our updated anti-delamination design using brand new parts:
Fix Yours for Half the Dealer Price
Mail-in repair, brand new parts, returned in 3 business days
A new Gen 2 Connext from a Yamaha dealer runs over $3,000. We replace the defective OEM components with our updated anti-delamination design using brand new parts for half that price.
Mail-In Repair
Ship with a prepaid UPS label. We replace the defective OEM components with our updated anti-delamination design, all brand new parts, test, and return within 3 business days. Half the dealer price. Pay after repair.
Order Gen 2 Repair →
Free Diagnostic
Send a photo of the rear housing and your year and model. We will confirm the PN, identify the failure, and recommend the right path. No commitment.
Start a Chat →Replace the leaking OEM adhesive. Fix it right.
Fix Your Yamaha Connext Gen 2 for Half the Price
We replace the defective OEM components with our updated anti-delamination design using brand new parts. Bubble gone, leaking glue gone, LCD locked in place. Half the Yamaha dealer price. Back in 3 business days. All settings preserved.
Order Connext Gen 2 Repair →