Hi,<br />I'm the one who had the post about a small amount of diesel in the gas tank. I did not mention in the last post that the idle speed also increased from about 750 rpm to about 1200 rpm. I drained the gas as much as I could - I couldn't pump any more out with the primer bulb - and added fresh gas and oil mix - six gallons. I ran it in a tank today and the idle speed was still at the 1200 mark. I turned the idle speed down to 750 rpm and the motor seemed to run fairly well but still smoked quite a lot. This was with new plugs. What would cause the increase in idle speed? The motor is a great runner and I do not want to do any damage. I ran it for about an hour in the tank at various rpm's. Thanks for any help.
