1st gear CLACK

[ClassicVW_imp]

Are you 100% certain there's a "sheen"?
What is it's thickness?
And how much of a "sheen" is good enough?

Just like guessing that the engine is getting too hot, you're still guessing.

That's a nice story about the Ford Granadas, but has no bearing on our Honda engines or their expected longevity.
I can tell you an anecdote about Russian tank engines needing replacement after 100 hours, should I expect that from my CB?

You can certainly do as you wish, but I'm making a mental note to not buy any bike you're selling.
(I'm also done beating this dead horse). Going to the garage now.

Sure.

Because I don't let it overheat.

An air-cooled engine without an integral fan...WILL overheat when stationary. Not "might." WILL. It's why the manual tells you not to start it up and leave it idle when cold. It needs air flowing over the cooling fins and through the oil cooler.

A film of oil is all that's on lubricated parts at any given time. They are lubricated where there is metal-to-metal contact. And of course the contact presses off all but a film of oil.

I have explained how I know that repeated hot starts are not, in general, going to damage an engine. I have not seen or heard any contrary evidence. We KNOW what overheating does, even when not severe enough to seize the engine up. Warped heads, misshaped cylinders resulting in piston slap.

Nowhere, in any manual, warning, shop manual or text, does it advise leaving an engine, any engine, idling as opposed to turning it off. Many makers advise the opposite. Toyota, in some European models, has an engine that shuts of at stoplights and restarts upon releasing the brake pedal.

I grant, should someone buy a bike I've owned for a time, they might want to expect they'll be buying a starter and/or battery. But that's it.

Sure.

Because I don't let it overheat.

An air-cooled engine without an integral fan...WILL overheat when stationary. Not "might." WILL. It's why the manual tells you not to start it up and leave it idle when cold. It needs air flowing over the cooling fins and through the oil cooler.

A film of oil is all that's on lubricated parts at any given time. They are lubricated where there is metal-to-metal contact. And of course the contact presses off all but a film of oil.

I have explained how I know that repeated hot starts are not, in general, going to damage an engine. I have not seen or heard any contrary evidence. We KNOW what overheating does, even when not severe enough to seize the engine up. Warped heads, misshaped cylinders resulting in piston slap.

Nowhere, in any manual, warning, shop manual or text, does it advise leaving an engine, any engine, idling as opposed to turning it off. Many makers advise the opposite. Toyota, in some European models, has an engine that shuts of at stoplights and restarts upon releasing the brake pedal.

I grant, should someone buy a bike I've owned for a time, they might want to expect they'll be buying a starter and/or battery. But that's it.
I'd agree with some (maybe much?) of what you say if it was in regard to a long traffic jam where you're idling for an extended period or stuck in one spot with no idea when you'd get moving again. Like the time I was stuck in one spot for two solid hours on RT 81 in Virginia when a serious multi vehicle crash necessitated multiple medevac helicopter transports.

But shutting down and restarting as a regular behavior for just a red traffic signal is just not necessary. No one would ever consider buying a vehicle that could be damaged in the two minutes it takes for a light to change, and the manufacturer of said vehicle would be laughed off the planet and out of business in no time. And no owner's manual has ever suggested we do that. Cars that shut down and restart are using a different method than hitting the starter and the only reason they have that feature is to maximize fuel economy, nothing more. Nothing to do with a hot engine.