If I am going to get laughed at, It might as well be here. My question is, what is a Duty Meter. I have replaced the carb on my Samurai and am wanting to check the fuel mixture. The manual says to connect Duty Meter to the duty check coupler. I have found the coupler but have now Idea what a Duty Meter is. It says that the reading should be between 10-50. It I can use my voltage meter to check this, let me know how.