suggestions for using YSM

I have just moved a project from Adwords that I have been having good success with. My clickthroughs on my ads in Google are around 1.5% to 3% and my profit is 100% or over depending on the week.

My question is that I put this exact campaign in YSM and am barely getting any clicks and less than 1% on my ads. The quality on all ads are between 1-3 in ad quality.

They are also showing up lower on as positions than they are in google, I have changed my adds to more closely fit the keywords but still same results.

I bumped my bid up a little bit but not much. Any suggestions on getting better clickthroughs without uping my bid?

thanks