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completed a REFURB of a set of BSDT38 Mikuni's off a Ducati 900SS/FE today, basically returning them back to stock spec.
Findings included: 150 mains (replaced with OEM supplied 140)
pilot screws backed out 5 (!) turns, returned to 3 1/2 (more normal starting point for Ducati spec)
As current owner is replacing airbox top with a stock unit, he found a basically removed (drilled/modded) cover upon purchase, the PO in an obvious search for "more fuel/more air".
Standard for these Mikunis, I found ovaled emulsion tubes (replaced with new). This condition is known to cause uncontrollable rich running.
Last futzed with by ducatiman; March 20th, 2022 at 03:42 PM.
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