Whats this wourth ?  is this 70hp 4 stoke. Electric trim tilt. Fule injected. Johnsson wourth ££?

Not nearly enough information.

Is the motor complete and in a good running condition? The photo of it running means nothing as buyers don’t know when that was taken or even whether it’s the motor you’re asking about.

What year is it? 

Has it been used in salt water mostly?

Does it come with any servicing history?

If you want a fair idea, look on ebay for models the same as yours or very nearly the same. Then use the listing filter to choose “Sold items”. That will only show you listings which ended in a sale and what price they went for.

If you cannot find Johnson models the same or similar look at what Mercury/Mariner (those two are really the same company), and also Yamaha of similar specification sell for as they are broadly the same pricing, reputation and quality as Johnson (Yamaha sell a bit higher as they’re generally more reliable).