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Were should i start for mains?


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Ok i just got this set of triple drag ported cylinders and i dont know were to start on the jetting.. I have the old school FMF's, stock carbs, +4 timing, airbox no lid, stock reeds, the bore is at 64.5, and the porting is pritty wicked i was thinking around 310's? I had 240's and 30 piolets on just a stock bore and pipes b4. :confused::confused: If you guy could help out that would be great

Edited by 87custom
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any idea where the cylinders came from, or who ported them ?.

 

id say start around 340-350 and work your way down. with 27.5 pilots

 

I go them form slowmoe he said a guy names coonie ported them.. heres a link to what they look like http://bansheehq.com/forums/index.php?showtopic=141551&st=0&p=1222520&hl=slowmoe&fromsearch=1entry1222520

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