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Yfz 450 Jet Kit Popular Q&A
Q: How to Jet the Carb on a YFZ450.
A: 1. Ensure the fuel petcock is in the off position. Loosen the air box and the intake boot clamps to allow the carburetor to be rotated so that the float bowl is... Read More »
Q: How do you jet a 2008 yfz 450?
A: buy a jet kit and take the bowl off your carb and and put your jets in. Read More »
Q: What is the best big bore kit for a yfz 450?
A: Athena or JSR . stay away from Ice Cube cylinders. Read More »
Q: What is the stock main jet size for a YFZ450?
A: At a 175 mainjet you are about maxxed out, but so sustain this jet size Read More »
Q: 06 Yamaha yfz 450 jetting?
A: 165 main, 45 pilot, NFPR needle on the 4th clip and the stock #55 leak jet is what you will need. Unless you have a spark arrestor for some strange reason, then... Read More »