Just cut the Smaller part of the Nipples off with a Razor Knife and it fits well.
You can pick one up for just over $3 at any NAPA Store.
I've been using this one on my bike for a few years now without any problems.
No Actually I cut that 1/4" part off so it's a bit bigger (3/8" I Believe).
You can just look at the I.D. of the Fuel Line that connects to the Fuel Filter to be sure.