Here is a THREAD you can read ...it has pictures of yorkies AND the trimmers we use - ( I posted some) and it may help you -
http://www.yorkietalk.com/forums/sho...t=wahl+trimmer
I usually do a tiny bit around the eyes - TINY - just enough so my girls can see - they're outside quite a bit - and have Spying Jobs at the fence...They need to be able to see the cute boys (and girl) on the other side