I just want to thank everyone for all the replies...So let me give everyone some background info...I can hope on the bike anytime of day, choke it, pop the clutch with in15ft. from where I started and it fires right up (I do need to reach down and back the choke off about 10% once it fires or it will die.) I ride around for a few minutes, then I can start to feel it bogging down ( Try to give it some gas and nothing) So when I reach that point I go ahead and back the choke all the way off, It cleans right up and it's good to go...Now that's it's running at a good temp, it will max out the 22mph within the length of a house (approx. 40-45ft. with the 44 tooth sprocket). It pulls really good all the way to 20mph nice and smooth, No bogging, surging, or vibration, Once i get to about 20mph I can start to feel vibration coming on, and at that point It feels like I've run out of either motor or gear...It just flattens out, almost like there's a governor...Now I'll tell you about some of the set up...I do run a fuel filter, and even during my riding there is a constate amount of fuel in the fuel line (clear hose)...I have "o"-ringed the carb. and while its sitting there I've sprayed it for vacuum leaks(natha)...I even went out for a good ride then came back in and took a plug reading (it was good...I'm not new to 2-strokes...but to be honest the simplisty of these motors is out of my realm a bit.) While I'm riding if I give it any choke at all, it starts to bog...I pulled the carb off to verify that my slide was opening all the way (Yep)...Now as for the RPM's it's turning, I don't know, It feels fine, I even borrowed the carb(with aircleaner) off a neighbor who bought his from SPOOKYTOOTH (80cc) and there was no difference...That when I decieded to try the 40 tooth sprocket (I did gain about 2mph)...Scince then I have replaced the plug and gapped it at .030 and set my needle at the 2nd notch down...And this is where I sit...Beautiful weather to ride in but just no pleasure in it feeling dissapointed in the hole thing...Oh and as for distance, approxamately 190-195 miles...