Does anyone know how to lean out or richen the carb? my friend said the Honda's have a screw on the carb so that you can do this? The reason I want to do this is because my quad is running like crap after I make it work for about 1 or 2 minutes. I pulled the plug last night and the plug is pitch black like coal. It wasn't wet or anything. So my friend says its to rich. So how do I adjust the carb guys? Thanks.

 

Should be a recessed screw on the bottom. On end clisest to the motor.