ORIGINAL: Saxman1819
I don't want to hijack a thread so if someone answers his question could you also include a picture of the idler wheel? I don't know what it is. Thanks.
It's the wheel on the top limb of a single cam bow.
Problem could also be bad shims or bearings. I'd have the proshop pull and inspect the idler and then, if it's okay, have them tune the lean out by loading one side of the yoke more than the other.