Cns carb adjustment clarifications

Greg58 said:

Ritchie what was your top speed before the upgrades? Most stock engines will do around 34 to 35 after the break in. My 48cc with only slight modifications will do 30+ with a 44 tooth sprocket, my 66cc with same mods and the pipe I made will do 38 with a 41 tooth rear sprocket. I weigh about 210 lbs so a smaller sprocket doesn't work for me.

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Thanks so much for your reply I also weigh 200 pounds as I said I got all these upgrades I have I sent a picture of the bicycle it only does 31 miles an hour unless that's speedometer is wrong I bought another speedometer just to check to make sure however I don't know what's wrong I can't figure it out I'm pretty Savvy with the motors you know I'm pretty mechanically inclined and I can't seem to figure it out