Home Auto Repair How do I Adjust a Carb on a Honda 300EX ATV?

How do I Adjust a Carb on a Honda 300EX ATV?

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The Honda FourTrax 300EX is a small all-terrain vehicle (ATV) that has a lot to offer. This ATV is a cross between a sport quad and a sportsman. The 300cc four-stroke engine produces a lot of power and torque. Only newer FourTrax 300EX models have fuel injectors; earlier model have carburetors. Adjusting a FourTrax 300EX carburetor is not difficult, but you will need the adjustment chart in the owner’s manual.

Step 1

Locate the carburetor on the top middle of the engine. Turn the gas valve to the off position. Locate all of the small gold-colored pins on the surface of the carburetor and the small metal screw on the lower bottom right side of the carburetor.