Re: Hello from Chicago...got problems
After you go for a ride and it bogs down, when you're close to home kill the motor and walk or pedal it the rest of the way. Let the motor cool off and then look at the plug. Whiteish? Oily dark? Nice chocolate? It may give you an indication of what is going on. Post the results and somebody smarter than me may have an idea of what is wrong indicated by the spark plug
Someday when I grow up I will probably lose interest in toys with wheels, but until then...