While at WOT my Puch cuts in and out like a stall then kicks back in and takes a few seconds to recover, gets up to speed backs off and kicks back in. Not sure if it is too rich. Tried jets from 78 to 86. 78 jet was the best.
70cc TCCD kit, 15mm carb with a 217 atomizer. 82 jet, slide needle at second from the top. 18x40 gears and a muffler that has zen on the side. It was given to me so I am not sure about what it is. It has a big expansion chamber on it.
It ran fine with a 78 jet in it, but topping out around 40mph. Wasn't sure if the 78 jet was too lean. Also had the boss techno pipe on it. When I went to the bigger Zen I thought an upjet would get more MPH and make it run ok. but having problems. Is the 78 jet right or too lean. I have a 76 as well. Which way do I jet?