John Deere 50

What causes the timing mark to fluctuate in the timing hole when setting the timing using a timing light? Could this be caused by the mechanical advance in the distributor? The distibutor was never rebuilt, my pop was the original owner of this tractor.

 

Free Kid's Craft Day

Saturday, December 20th 10:00am – 4:00pm Theme: Trees Craft: Tree Ornaments John Deere Pavilion, Moline, IL