Thread: New 496 wont run??

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Originally Posted by DennyW

He said in his post that: I am waiting for my fitting to come in so I can install a gauge and see my pressure. My carb has sight glasses so I can see the float levels and they are set to just below half way.

No disrespect meant, but we know he has an excess idle fuel delivery problem. While I missed the "waiting on a gauge" part buried in solid block of text with no paragraph breaks, my bad. However, excessive fuel pressure is a #1 suspect and should be checked first. Regardless of where the sight glass shows on a motor that won't run long enough to adjust properly.

My second question "Can you close the idle mixture screws completely and the motor still run?" While an overly rich condition (burning eyes) could account for the low vacuum (6hg), it could also be indicative of a vacuum leak or transition slot over exposure and closing the idle screws can confirm this.

It has always been my intention to help.