Judge me and Fix me

Any volunteers to make this have more contrast?! I need a photoshop buff. Because the spool is yellow, it just doesn't do high contrast black and white it seems. Ultimately I'd like it to have a hard edge around the spool too, and more black lines. I'm not sure if I love it yet but I'm thinking it would work as a logo if it had the contasted lines I'm talkin' about. What do you think?