as far as carb tuning goes, type doesn't matter on the initial setup, warm it up, set it to correct idle rpm, then adjust the air/fuel screw. Before the slide = air screw-- so turning out means more air to the initial mix. Slides are considered better because of that good low end response. Always new o-rings on the air screw or idle will be a PITA to set. Leaking is likely float needle and seat not sealing. a little drip while it sits?-- bowl overflows and there you have it. that bad seal will also pull fuel up during initial, also messing with setup--ask me how i know that. LOL
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