I'm pretty new to the small engine thing. And I've never dealt with carburetors. But I got my hands on a bike that won't start and I'm seeking help to trouble shooting what the issue is from someone who knows more then me. My bike is an 07 YZ450F. I know the motor rotates easily, motor is good, I have spark, I have gas flow, air filter was cleaned, I cleaned the carb, fresh gas and new oil and coolant. New plug today. How would I go about adjusting the carb on a bike that won't start, or how would I diagnose if the carb is being a dink at all?