OK, I have had quite a few frames I have bought and when I got them home and lifted the tank, have noticed that the frame rails had been cut, so they can get the motor out easier, but - They never put the rails back.
This severly weakens the frame if there is no support.
So, I thought I would make some frame rail adapter kist and I use these all the time now and glad I do.
These are well thought out and must say, they are a real bonus for your bike.
Well, even if you do have rails there, you know what it is like to remove the motor and you only want to remove the cylinder head.
If you fit my kit, you can unbolt them, thus exposing the top end of your engine and can easily remove valve cover and head, but leave motor in the frame.
Or, it is also a lot easier to remove the whole Motor and not have to struggle to wiggle the damn thing out, as these motors are fitted really tight.