Honda-SOHC

That oil will be fine, their spec is just for mineral oil but with regular changes in general use, it'll not give you problems.

To be clear: "mineral" oil = conventional, non-synthetic?

Thanks guys and gals!  I'll have a chat tomorrow with the guy who has been keeping the bike for the owner - find out if anything was done before or during storage (although the owner says he was in a "bad place" two years ago, and he just put it on the center stand and walked away from it).  I'm hopeful I'll be able to turn it over easily; a look into the tank and carbs will settle whether I'll try to run it...

I live on the coast of Maine, in Camden, about a four hour drive north of Boston.  I've worked on the water since I moved here in 1990...

Greetings all, from Maine, USA...

In two days, a '77 CB400f (21K miles) arrives at my door - I'm taking custody from a friend who sadly cannot keep it.  I have no experience with this type of bike (and not much with any other type, either!), so I'm hoping to find some useful info to help me along.  I did ride the bike three years ago, and it seemed to run pretty well then, but the bike has been in storage for the previous two years, and I know it wasn't prepped beforehand, so I'm imagining issues with the fuel tank and carbs right off.  I'll basically be moving it right into my own storage for the winter, so I'm looking to help it along with some proper preparation.

I have no print resources to guide me; I did download what Honda manuals I could find, but they're a bit short on details.  I am in the middle of reading through Nurse Julie's engine rebuild thread, and have learned that I probably should be very careful about even trying to turn the engine over after two idle years - although I am told the bike was stored indoors, completely out of the weather.

Advice on what a beginner might do to stabilize and protect it for the winter would be most welcome!

~ Matt