checked the cables : working from throotle to mechanism atthe back.but its only running rear.no netural or reverse,throttle doesnt control the drive
what is this?

ttt

Sounds like the shift cable going to the outdrive broke. Mine just broke last week. Mine broke in the neutral positing, I had not forward or reverse.

You will need to pull the outdrive & verify.

shift cable or shifter fork ?????????????

Probably the shiftcable. If the cladding on the wire between the transom and the outdrive breaks , the wire can only pull, resulting in loss of forward and sometimes also neutral.

shifter fork!
i removed today and fork is broken

will fix and reinstall it tomorrow i have spare by chance