Quote:
Originally Posted by JMcDonald
am I correct in understanding the guideline to be go to a larger pilot if the mixture screws are more than 3 turns out?
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that's correct, but I would wait till you get the mains sorted, then the needle clip settings and then worry about the pilots. moving the clip position on the needles has a small affect on the pilot circuit.
if you find you need the 108s, you may need to compensate by going richer with the needle clip position, which will in turn richen the pilot circuit, which is why they recommend you start from top and work your way down, otherwise, you're pretty much guessing.
btw, if you have access to a good dyno shop in your area, you might want to consider taking the bike there to sort the jetting. your custom pipe may be giving you some results that are not common with an exhaust designed specifically for the 250 ninja.