Re: John Deere 314 Shuts off while mowing.
I had a 314 for a few years and I can highly recommend what is now called the "Trandenser II" from kirk engines. It used to be called a points saver. It drops the amount of current going through the points by 90% and essentially will make your points last many many years and possibly the life of the engine. I installed that along with new points and condenser, adjusted the points after install, and didn't touch the points again while I owned the machine.
1992 JD 318, 48" deck, 54" blade, wheel weights, chains
1980 JD 314, 46" deck (sold)
1990 JD STX38 yellow deck (sold)