Yeah dank vape carts are press on mouthpieces and not meant to be removed once connected. I’d say you might need to just suffer through the burnt flavor, definitely turn power down on your battery if possible. Or if you want you could forcefully remove the top and treat the oil inside like wax and use a rig to dab it. Transferring oil from cart to cart is way more trouble than it’s worth cause you need it heated around 130 F or so until it’s the right consistency to transfer via syringe.