Posted by bsekf on May 31, 2010 at 08:41:42 from (69.207.59.97):
I have a 574 with the German 239 in it. Smokes quite a bit on start up. After it is warmed up it will smoke when not under a load, but under a load it does not smoke and runs smoothly. Have found that under 1500 rpm it smokes less when not under a load. It is white smoke (unburned fuel).
I understand it is fuel delivery, but is it the ejector pump or the ejectors? Or a combination? I keep hoping for a simple, cheap fix but am looking for an explanation.
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