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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