![]() ![]() The slide is controlled by the throttle cable. The slide controls how much air can be drawn through the carb. The Engine draws air through the carb, the carbs internal shape creates a venturi effect drawing fuel in with it. ![]() Below I’ll be going through a very simplified explanation of the functions of each part of the carb, and some basic examples of tuning it.Īll carburetors work off a few basic principles, fortunately for scooter tuners, scooter carbs are some of the most mechanically simple around. The next obvious step before doing anything else, is to familiarize yourself with the components of the carb, and what they do. Certainly an easy way to save yourself alot of extra hassle, as many scooters have different fitment methods. For many models Malossi make a specific kit with included fitment parts to fit specific bikes, which is really handy particularly when it comes to chokes, inlet & outlet size, and mounting type. If you’ve gotten yourself a performance carb, the first thing to do is make sure that fits the scooter. These principles can also be applied to standard carburetors. In this article were going to be going through the basic components of carb tuning, in particular the PHBG ( a benchmark carb in performance scootering). ![]() Where do you start, what does what, and how do you make sure it doesnt blow up?! Performance carb tuning can be one of the most daunting tasks of tuning a scooter. ![]()
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