Engine

Troubleshooting

EX250 parts diagrams

Do I really have to follow this break-in period?

Do I have to do this 500 mile service?

Engine Oil

How do I adjust the valves?

Changing the spark plugs & brands to avoid

How long will a Ninja 250 engine last?

What's the redline of my bike's engine?

What is the correct way to apply choke at startup?

What can I do if I flood it?

Why does my bike take so long to reach normal running temperature?

What are those tubes hanging down from the bike for?

An overview of the cooling system

How do I service the cooling system?

How do I replace the sight glass?

Cam chain tensioner maintenance

How to build your own track bike

What is involved in removing/rebuilding the engine?

I want an engine stand for my 250

I want to put a bigger engine in my Ninja

I want more power

Service Schedule

Torque Values

I Need Recommendations For Tools/Parts.

I am having trouble putting my bike on its centerstand

Supporting Your Bike While Servicing