I put up a coyote last week and i usually scrape them well but i felt i was scraping too much so this one i didn't get the membrane off and there is a good bit of fat under it and its not drying like it should. Is there any saving this or should i scrap it ? Can i rehydrate the hide and start over?

If you put it up last week,the only thing you can do now is scud the fat out from under the saddle with a dull scraper.Check first to make sure the hair is not slipping.If it is turned already fur out and the fur is not slipping put a fan on it and just leave it.

Ok thank you Boco. Can i moisten the head so i can turn it? I've always been rite on top of my put up but this season I'm in a new fur shed and the heat situation is not the best so i moved into an un heated basement so my drying time is much longer than I'm used to. I give you all credit that put up fur in 50° sheds cause its definitely new to me.

Yes,you can wrap the head in a wet(damp) towel to soften it if it has dried hard.
To dry fur properly at lower temps you need low humidity.Low temps with high humidity will cause problems.

When in doubt flesh it out.

Thanks for the help guys i got it put up.
I just feel like when i flesh all the fat off them i start pulling the hair through the hide. So im just trying to find that fine line i guess.

Coyotes are like otter, you need to get the membrane off to get at the fat.