It finally got warm enough(above 35) to have a nicer ride here today. Still wasn't getting very good top end so I did the exhaust baffle cut off mod. WOW! I got better performance all around, better power, about a 5 mph boost, and less bogging at wide open. It did bog a little but then pushed through it and actually started to pick up more speed. Didn't really notice it being much louder, just a bit deeper at lower speeds. Reading thru this site has really been helpful. Thanks to everyone. I'll definitly be doing some more modifications to my bike in the future. e.g. sprocket, plug/wire, better oil/gas, etc... Anyone know where I can get a gas cap that doesn't seep or are they all pretty much the same? Mine came with the 70cc kit I got from dacscommm.