Intake

What is the correct way to apply choke at startup?

What is the engine idle speed? How do I adjust it?

What can I do if I flood it?

What kind of fuel should I use?

How do I install a fuel filter?

Removing idle mixture screw plugs

How do I adjust the idle mixture?

How do I synchronize the carburetors?

How does the reserve tank work?

How far can I go after putting the fuel petcock on "reserve"

Draining the carbs

How do I drain the fuel tank?

Hose routing for California emissions/3 line fuel tanks

How a carburetor works: Carbs explained

How do I work on the carbs?

How do I avoid working on the carbs?

How do I clean the air filter(s)?

Which aftermarket air filters fit the Ninja 250?

Why performance mods might not be good for you

I want to upgrade my intake

I want to improve my carburetor jetting

I Need Recommendations For Tools/Parts

What is carburetor ice?

Torque Values

EX250 parts diagrams