Stock mains for this model are 112.5. The Dyno Kit advises to use their # 110 for stage 1 with stock exhaust. Does not say anything about the intake side, but I got a stock airbox off eBay to replace the pods with.
It also says to drill out the needle hole in the slide, presumably because the Dyno needle is thicker than the stock one. But the needles in my carbs are actually thicker than the ones in the Dynojet kit, at least at the top where they come through the slide. And they still wiggle a fair bit. How much clearance/play should there be for the needle emerging from the bottom of the slide?
I am wondering if I want to substitue the Dyno needle for the one in there now. It is obviously designed to work with their main jet but its diameter is a lot smaller than the hole in the slide it comes through. Would this cause me a problem?
It is obvious these carbs have been modified before with a needle and jet change. But the Dyno instructions assume a stock setup. I guess if I can safely use the smaller dyno needle in the large hole and the 110 jets I can continue the march. Am I correct in assuming that using the fatter needle with the 110 jet could have me too lean?
Another option is to just clean the carbs, Leave the fat needle and the 132s, keep the pods, set the air screws at 2.5 and see if the stumble is still there. My first choice is to take it all back to stock, but I'm not sure how possible that is with the carb parts I have.
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