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Discussion Starter #1
Hi all!!

I am the happy owner of a set of Keihin Fcr`s 41 mm carbs. I bought mine prejetted to suit my engine. I have a SilMotor 43 mm stainless steel header,open airbox with K&N airfilter,SilMotor 105 db silencers,stock heads and valves. And i have the "small" valves (750 heads) I havent dynoed or checked the air/fuel ratio on my bike but it runs really good and strong. So i wonder what main jets you guys are using with the same mods as i have.......My plugs looks nice by the way.
 

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Discussion Starter #2
Re: What main jets are you guys using on your Fcr`

No one......??? ???
 

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Re: What main jets are you guys using on your Fcr`

Start here:
http://www.ducatitech.com/2v/fcr_faq.html

Most folks just leave `em as be. A couple will dyno tune to optimise fuel delivery. Since this is mod, bike, and altitude dependent, the numbers won't really apply to you.

Everything but the "small valved" heads tells me you're candidate for normalcy. But you may need to lean out a little. Only gas analyzer can really answer that question.

:)
Chris
 
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