Before you buy expensive electronic modules, coils, stators, carbs,
pumps and such, CHANGE the spark plug. Don't check to see if it is
getting spark because many times they can show spark and run fine,
only to fail a minute later and then work fine after another few
2 days ago a guy brought me a John Deere Gator 4X2 to fix. It would
start and run great for a minute or two, then die, then start right
back up for a minute or two. It would idle forever. AFter checking the
fuel delivery system ( it was fine), I replaced the spark plug and it
ran fine for my test drive of a few miles. $3 part and $35 labor and
he was on his way.
Well, today's the day for me to get serious about diagnosing the
problem. If I determine it is in the electronics, I will start with
replacing the cheaper parts like plugs first and move on.
I will report what I find.
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