So I took some advice I found in another forum about diagnosing early shutoff with Yamaha. Here are the steps.
Yamaha's trouble shooting method for early shut off applies here.
"1, disconnect all of the speaker wires from the back of the receiver.
2, turn the receiver on, and turn the volume control up to about half way. If the receiver stays on, please go to Step 3. If the receiver shuts off right away, the unit will require service. Please consult with your dealer for further assistance.
3, carefully inspect all of the speaker wiring and the connections at the back of each speaker. Remove and reconnect the wiring at the back of each speaker if necessary.
4, re-connect the main speakers only, and test the system. If operation appears normal, turn the power off and re-connect the surround speakers. If it shuts down prematurely, you should have your main speaker system checked.
5, test the system after the surround speakers have been re-connected. If operation appears normal, turn off the power and re-connect the center speaker. If it shuts down prematurely, you should have your surround speakers checked.
6, test the system after the center channel speaker has been re-connected. If operation is normal, you have located and fixed the over-current condition.
If the receiver shuts off prematurely, you should have the center channel speaker checked. Other problems which might cause premature shut off can include using speakers with impedance of less than 4 ohms, an internal problem with the receiver, or a problem with a source component."
I made it to step 4 and it shut off. I only had the front two speakers hooked up. hooked one up at a time and found my front right was causing the shut off. I switched wires and no good. The speaker sounds fine the whole time but is causing my system to shut off. I took it apart and nothing I could tell was wrong except the positive lead looked a little too close to the capacitor. At least I think thats what it is. Moved it away but still causing a problem. I wonder if the capacitor in the speaker is bad. Would that cause a short like problem and cause the receiver to shut off?