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jluetjen jluetjen is offline
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Join Date: Oct 2001
Location: Westford, MA USA
Posts: 8,643
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I've been collecting jetting information as it's been posted on this board and to be honest F11 emulsion tubes have never turned up until you posted your configuration. For a discussion about emulsion tubes and the affects -- have you seen this thread from a while ago? The data on that thread suggests that F11 are for "High RPM weakening with air corrector jets larger then 2.0 mm (which you have btw)". If your carb is set up to be OK at higher RPM's, then you might find that you're out of whack at lower RPM's. Note how at 2500 RPM you're mixture is rich at 2500 and lean at 3500 RPM. Also, have you confirmed that the accelerator pumps are set correctly? BTW, F3 or F26 seem to be more common in "happy" engines with a similar configuration.
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'69 911E

"It's a poor craftsman who blames their tools" -- Unknown
"Any suspension -- no matter how poorly designed -- can be made to work reasonably well if you just stop it from moving." -- Colin Chapman
Old 02-01-2006, 01:33 PM
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