Hi my name is shane and im a bike motor junky..haha.hey to all,,just bought a gt2b>48cc...I bought it used for 100bucks with a cheap mountain bike included,,brought it home hooked it up,,chain kept falling off. Bought new chain and rim cause it was bent..410 chain from bike shop,nice and tight and durable Now carb bogging out at 1/4 throttle and then shuts off. Adjusted all jets,lowerd needle,no leaks,ngk6 plug.Accel 8mm plug wire and cap..fule ratio.32:1 93octane fuel.I read all posts and tried everythingAny suggestions would be highly greatful.Sorry if this is not in the right spot.I am here if anybody needs anything from me this is a great site the best my opion..you guys are all good with these bikes and thats aweesome thank you all~ Shane~ Nj