There are different soaking times and cooking times for each kind of bean. If I knew what kind of beans you are using, I could be of more help. But since I don't, I will give you some information. Here are the approximate soaking and cooking times for some widely used Legumes:
Adzuki Beans:
Soaking Time: 4 hours
Cooking Time: 1 hour
Black Beans:
Soaking Time: 4 hours
Cooking Time: 1 1/2 hours
Black Eyed Peas:
Soaking Time: None
Cooking Time: 1 hour
Chickpeas:
Soaking Time: 4 hours
Cooking Time: 2 to 2 1/2 hours
Fava Beans:
Soaking Time: 12 hours
Cooking Time: 3 hours
Great Northern Beans:
Soaking Time: 4 hours
Cooking Time: 1 hour
Kidney Beans (Red or White):
Soaking Time: 4 hours
Cooking Time: 1 hour
Lentils:
Soaking Time: None
Cooking Time: 30 to 40 minutes
Lima Beans:
Soaking Time: 4 hours
Cooking Time: 1 to 1 1/2 hours
Mung Beans:
Soaking Time: 4 hours
Cooking Time: 1 hour
Navy Beans:
Soaking Time: 4 hours
Cooking Time: 2 hours
Peas, Split:
Soaking Time: None
Cooking Time: 30 minutes
Peas, Whole:
Soaking Time: 4 hours
Cooking Time: 40 minutes
Pigeon Peas:
Soaking Time: None
Cooking Time: 30 minutes
Pink Beans:
Soaking Time: 4 hours
Cooking Time: 1 hour
Pinto Beans:
Soaking Time: 4 hours
Cooking Time: 1 to 1 1/2 hours
Soybeans:
Soaking Time: 12 hours
Cooking Time: 3 to 3 1/2 hours
The reason for soaking beans is that soaking the beans softens their skin, making them less likely to burst while cooking. It also causes most of the simple sugars (the bad kind) to leach into the water, thus making them healthier.
Hopefully you will find your beans listed on the listed I have provided for you.
Good luck.