Hey Mike, Roger that - All gummed up.
On the little Valentine I can pass a thin copper armature winding wire through the needle into the supply side. It is the tiny little spray hole which I think is clogged and can't get to w/o pulling it apart. Even so your ideas of the vibo-sonic cleaner may just do the trick. i am overdue to buying one!
Thank you for your help buddy!
Your engine looks better than new!