Yesterday I found myself in Aiea a little before lunch time and decided.... after years of driving past it, to give Forty Niner Fountain a try. I had the fried saimin with garlic chicken on the side (also available with teri-beef). The noodles were nice and thin, not overcooked, and had a nice taste and texture. There was plenty of spam, kamaboku, char siu, and green onion. It reminded me a lot of the fried saimin at the Old King's bakery on King St. in Pawaa/Moiliili. I almost automatically put shoyu on, but it wasn't necessary. If i have one criticism, it was almost too salty (no wonder it reminded me of Kings Bakery). Quite a few of the other people who came in ordered regular saimin (hawaii style ramen). I asked the (very friendly and competent) waitress and she said they make their own shiro (broth) from scratch. The garlic chicken was really good... maybe not mitsuken... but ono. Nice and crispy with a fresh garlicy flavor.
The place is divided into two halves, on the highway side there is a lunch counter that seats about a dozen people. The mauka half has table seating for about 30. There is a small parking area mauka of the building, parking for about 6 or 8 cars. They open early, around 6 or 7, close after lunch, then open again around 4 till 7 or 8 for dinner. The "decor" is very retro, right down to the lack of A.C., which wasn't a problem when I was there, the ceiling fans provided a nice breeze. I will definitely be going back to give it a second try.