need help with primary

[o4custom]

So I have seached for a week on this and no luck. I have a custom bike with a harley 96ci motor that i was told came from an 04 night train. the trans also. my primary began to leak a lil here and there, the other day i caome out to my bike and there is a huge puddle under it. I have worked on lots of cars but NEVER a bike. I pulled my primary cover off and the seal looks ok. I cleaned the bike to see where the leak came from originaly. it looks like it is coming from where the primary bolts to the motor. i was told by the guy at a local shop it could be the o-ring there. does this happen often? is this something i can tackle myself? I hope so being that i just got laid off and have NO money and my bike is my only ride. PLEASE HELP!!! sorry for the long post :

[SCHMIDTYS]

It's probably the inner primary main shaft seal that's leaking . The primary cover , comp. sprocket and clutch and drive chain come off , then the inner primary cover too , and loosen the starter bolts . Inner primary cover off then replace the main shaft seal and the starter shaft seal and reassemble in reverse order . SIMPLE !