I have been out of it for a while now.... long story but am doing some maintenance on my bike before I take it out in the next few weeks. One of the things I am doing is putting on a new chain and sprockets. Since they ship the chains covered in the gooey grease..... I just forgot, do I clean this stuff off before my first ride or leave it on there? Contact cleaner, wipe it with gas?? Please get me back up to speed. Thanks!