...except for my first vehicle, a '79 Chevy Big 10. That thing would lock frequently. I was 15/16 and it was smarter than me back then. Left me stranded enough that I learned to fear it.
1/2 ton truck with 454. Stock except for side exit exhaust.
It would die instantly. No warning of any kind. Just died. 15 minutes later life was good again, ...every time.
I know. It's not a Goldwing. But that is my experience (my only experience) with a vapor-lock issue.
PS - I should add that I had a '84 Fiero; a 2M4 4-cylinder. First year. That was a throttle-body engine. 2.-something. I don't remember exactly. It had a recall due to the fuel line running too close to the exhaust manifold. I had done nothing about the recall and sold the car. The new owner did nothing either and the line melted catching the rear of the car on fire. I never had a fuel issue with it, meaning no vapor-lock. It was injected and the pressure was too high to allow for it to happen. If it were carbureted the problem would've been resolved prior to leaving the proving grounds... Raising the fuel pressure also raises the boiling point, but this is really a non-issue at 2-4 psi as this is not enough pressure to affect boiling temperature. The alcohol is more of a issue than pressure. All alcohol solvents evaporate faster than gasoline does. Ethanol is no different (even at 10% by volume).
The real answer would be to install a return line to the tank. Where to install the return line so that pressure is relieved and keeps the bowls filled would be like debating oil.
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The "cool-can" is real-deal problem solver. In the trunk is where I've used them.
Today, ...the ricers have replaced us old-school types that've used cool-cans with their fancy CO2 sprayers. Kids... Eghhh. What do they know about anything rear-wheel drive anyways. That in itself is old-school now-a-days. Absurd. I still can't believe I have a Civic (it's really Baby's car, as it stays with her. Ha!)...
