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Old 06-24-2011, 12:38 PM   #1
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Onan Vapor Locking??

I have an '07 Forester with the Onan 4.0 generator, it has developed a problem, it starts & runs perfectly for 3/10 of an hour, just long enough to get hot, then quits, with or without load, oil is full, the fuel is full, after it cools for a while, it will start up & run for a while, (1/10 of an hour) & quits again,leading me to think about vapor locking, it is about 85-90 degrees out, but I would think that it should run in any temp. It has run great at 99 degrees in the past.
Question is, how do you avoid vapor locking?
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Old 06-24-2011, 10:41 PM   #2
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Could be an ignition coil going bad. They usually fail when they get hot. Before you pull the trigger on the "parts canon", and blow away a bunch of money, you need to determine the cause of why it quits.
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Old 06-24-2011, 10:41 PM   #3
cat
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how long after shutdown before it will start sounds like a coil problem
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Old 07-19-2011, 11:26 AM   #4
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Quote:
Originally Posted by cat View Post
how long after shutdown before it will start sounds like a coil problem
5-10 min
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