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Unless the person telling you what jets to use is riding an identical bike, on the exact same track, at the same time, his recommendations are meaningless. Every rider has a different style, and jetting is totally weather dependent.
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No one can give you the perfect jetting specs because every bike is different. The only way to know what jetting changes you will need is by trial-and-error. Rich Jetting Causes Spooge What Jetting Changes Do I Need? Both are incorrect fixes for plug fouling. Proper Jetting Cures Many Problems: What’s Your Problem?Īre you fouling plugs? Many people will tell you all sorts of band-aid fixes, from running less oil, to running a hotter plug. It can also be the difference between your bike overheating and running cool. The needle can make all the difference in the world for the power of the machine in most situations, as it controls the throttle range that most riders spend most of their time using.Ī correctly sized main jet could mean the difference between being able to rev out high enough to not have to shift one more time at the end of the straight, or the power falling flat on top and requiring you to make that extra shift. Hard starting when hot or cold, poor response when opening the throttle, reluctance to idle, all of these are symptoms of an improperly sized pilot jet or incorrectly adjusted air screw. Dirt Bike Jetting 101 What Can Jetting Do For You?Ī cleanly jetted pilot circuit can be the difference between having to clutch the bike out of a turn or not.