Supers and queen excluders. Bees don't like the supers...

[RustyUPNY]

I have a strong hive with 90% of the frames drawn. I put a queen excluder and super on two weeks ago and they haven't touched the super frames.  Should I ditch the excluder to coax them up there until they at least start building out comb?  Is there any other ways to keep the excluder but coax them up there?  I have heard of people putting a little 1:1 syrup on the frames first (not sure if that actually does anything).  I am using deep broos boxes and medium supers so swapping a frame of honey from the brood box up there won't work either. 

[Colobee]

This is one of the issues with deep brood boxes & medium supers - you can't swap some drawn frames up to entice them. Ditching the QE until they start drawing comb above an option. If there isn't much of a flow on, you'll likely need to feed syrup.

[AR Beekeeper]

If you are using 2 deeps for the brood area, find the queen and put her in the bottom deep, add the queen excluder, put on the second deep above the excluder and the honey super on top.  Slide the honey super to the rear 1/4 inch to make an upper entrance for the drones and foragers to use.  In seven days check the upper brood box for queen cells and remove them if you don't want to make any increase colonies.

By splitting the brood chamber with the queen excluder you have brood above and below the excluder, this causes the bees to pass through the excluder with no hesitation.  The bees will draw comb above the excluder as well as if the excluder was not there.  The bees fill the upper deep with the honey they will need for winter stores, then draw the comb in the super and fill it if the flow continues.

Some beekeepers will place all the capped brood above the excluder, this lessens the chance of the bees making queen cells above and also causes the bees to draw the foundation faster because of their need to store nectar above the brood.

[cao]

Should I ditch the excluder to coax them up there until they at least start building out comb?   

I would, but I don't use excluders.

Is there any other ways to keep the excluder but coax them up there?  I have heard of people putting a little 1:1 syrup on the frames first (not sure if that actually does anything).

The syrup can't hurt.  At least they will be going through the excluder to clean up the syrup.  Remember they only build comb when they need it.  If there isn't a flow, then they don't have nectar coming in that they need to store.

[Michael Bush]

I would retire the excluders until you actually need them, which will probably involve a very hard to find queen or some queen rearing issue...
http://www.bushfarms.com/beesulbn.htm#excluders

[Oldbeavo]

Who is running this hive? most of the time it is the bees. They don't have a need to go up into the super, the honey flow is not enough or the queen has plenty of space to lay what she wonts to and so why go up to the super. If she didn't have enough room they would shift honey up to the super. Or if the honey flow increases they will go up.
The excluder is not the problem.

[Acebird]

90% drawn is not 90% filled.  If you get to 80% filled and no activity in the super above then you can do something about it.  Now is not the time.  No need for the excluder now.  Use it if you like after the first super is filled but you don't need to.