Cactus, right on.
PB, Interesting your stock jets differed to mine. Oh well quality control. My settings are just a benchmark then. I did not simply throw in those jets and say "hey that's it". When changing one way or the other I would purposely over step each apparent ideal jet setting to confirm what I thought was happening. A time consuming process. It probably took me about 2 or maybe 3 hrs before I was convinced. If your OKO26 is not the same as mine then you'll have to do something similar and re-jet yourself. The inlet ports must match. Yours look pretty bad! I used the OKO inlet (not the Lifan one), but the OKO bend is more gradual so your carb will sit higher and on your bike you might run out of clearance above the slide cap. My whole header is coloured. Blue out of the head, then into a bronze colour. Tune by how it runs. Lean means hesitant. Rich is rough and deep sound. Way rich or lean can = big. Throttle position indicates which jet (or combo of jets). I do pilot+screw to make it just run somehow, then I set the main. Then I fine tune the pilot+screw, then fine tune the needle clip (1/2 to 3/5 open), then I go back over the whole lot and seek further improvements because they dont all work indep of each other. I know I am jetted slightly rich. If for example at wide open I go one leaner on the main, then for sure my engine pulls with a longer and more powerful top end, but it'll bog way to easy upon sudden wide open throttle use. Take your pick. I much prefer the response. You might get lucky with a not so rich main, if you are rich enough on the needle clip, but I tried that and it did not work for me. As mine is it's crispy response with a pretty quick throttle open to any position. That response let's me get away with all sorts of problems on nasty dirt tracks - which I think is the ticket to faster laps and massive fun. If nothing seems to make sense, then don't forget the float level because it effects everything else, and OKO are - OKO. Without the clear bowl, I think it's a bit of guesswork. I changed mine (raised the level) because I had bog when new (day1) at low lean angles around tight rutted corners, and I got real lucky. I played with the carb mount angle first, and then found I could corner one way but not the other. So I raised the level and bingo. I did all my jetting at a track, but I did find that the main can be set to a near right size just by going wide open in neutral and revving the crap out of it for about 2 secs. If lean it'll bog real easy. If rich it'll never rev out. When right it'll sound real clean and rev up real fast. But your engine is new, so probably not a good idea in your case.
right on...and btw what would be pitbiking without tinkering, right
