Upvote:2
As you have checked luggage, remember that the critical point is the check-in deadline, which is 1 hour before the departure time of your outgoing flight.
This means you have 1 hour 20 minutes to:
If everything goes as planned, this should be more than enough. However, if your incoming flight is late, it will quickly become very tight. Remember that if you miss the check-in deadline, you're on your own:
If you still can, I would recommend rebooking with a bit more time. 4 hours between scheduled departure and arrival should give you enough buffer. If not, check if you are eligible for travel insurance which would actually cover this situation.
Upvote:3
You do have to pass through immigration, collect your bags, pass through security and re-check your bags.
140 minutes might be OK, a little tight but doable. If your nationality requires you to have a transit visa from Turkey then you definitely need a visa/eVisa for this. It is not a direct air-side transfer.
Run, Don't walk!
As noted in George's comment below, if you don't have checked baggage then you don't need to go through these steps. You can check-in online, have a boarding pass and go straight to your gate after passing security.