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Old November 24th, 2019, 07:34 PM   #21
ducatiman
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Name: Gordon
Location: new york
Join Date: Sep 2009

Motorcycle(s): '95 DUCATI 900SS/SP '07 DUCATI SS800 '19 HONDA CBR650R

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MOTM - Nov '18, Mar '17
All Keihin OEM standard needles are clearly marked, adjustable jet kit needles are not normally marked at all.
Pregen use 105 main, N16I needles both left and right..... newgen needles actually differ Left N9VU and right N9VW and used with the smaller mains.

So the set using the 105 mains and N16I needles should be correct for your gen.

I had asked if OP had documented carb jetting earlier in the thread. Needles are part of the jetting scenario and need to be confirmed as correct for the application, along with mains.

I dunno, he's checked all the right boxes to this point, all the right answers.

However, I'd like to ask, after his most recent efforts, if closing one pilot screw at a time will still allow that particular cylinder to run? This happens on both left and right cylinders? This occurs using either set of carbs?
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