Zimmy,
After you determin that you balancer is ' out '.
The balancer should be replaced if it has slipped and is coming apart,it can be an explosive device if revving and comes apart.Also if it has slipped your engine will no longer be in balance and put undue stress on your bearings. Then again it may be something as simple as you clipping the timing light onto the wrong spark plug lead,it's easy to do,I'd check that 1st.
Good Luck,
Perry.
