Tips on getting a tire to seal?

[makenzie71]

I hate doing the 16" 250 wheels because everytime I do them I put the tires on backwards.  Last time I put both tires on backwards...realized it and took them off...then put them on backwards again.

I did finally get the tires to seat...bought a half gallon bottle of hand soap and slathered it on the bead.  Worked great.