How do you remove goop from a tranducer ?

Oops , I screwed up , and left an air bubble in the goop, any ideas how to remove the goop from the TD without harming it would be appreciated , it came off with the holder clean from the hull. 

Read this post a while back with your similar problem.  I've seen Goo Gone at Walmart but that was a while ago.

http://www.norcalkayakanglers.com/index.php/topic,22420.msg232421.html#msg232421

http://www.magicamerican.com/googone.aspx

I changed mine over recently from a goop install to a foam block and water install.   When I removed the transducer from the hull, it came off just as you said.. goop and all.   In my case, I was able to just pull the goop from the transducer in one piece. It was pretty rubbery and came off completely clean.

Thanks guys , I ended up using a small sharpened plastic scraper to lift the edge and slowly peeled it off.
Removed the thin residual with my thumb using friction, was afraid to try the goo gone. I'm going to try
the pool of water nex't time I mount it. 

use acetone, nail polish remover, it should help a lot. From there just scrape it off with a sharp knife and peel away the old goop. Worked for me in the past.