Free Yamaha Blaster Technical Resources

Welcome to the Ken OConnor Racing Yamaha Blaster Technical Resource Center. Here you’ll find free Yamaha Blaster repair guides, troubleshooting information, engine specifications and interactive calculators in one convenient location.

These resources are based on decades of hands-on Yamaha Blaster engine machining, rebuilding, testing and troubleshooting experience. Whether you are rebuilding an engine, diagnosing a problem or setting up your carburetor, this page will help you find the information you need.

Bookmark this page and share it with other Yamaha Blaster owners. New technical resources will be added regularly.

How To	Troubleshooting	Calculators
Yamaha Blaster Top End Replacement	Yamaha Blaster Won’t Start	Yamaha Blaster Displacement Calculator
Yamaha Blaster Leak Down Test	Finding an Air Leak in a Yamaha Blaster	Yamaha Blaster VM-26 Jetting Calculator
Yamaha Blaster Torque Specifications	Testing a 4 or 5 Wire Stator in a Yamaha Blaster	Yamaha Blaster Keihin 28-PWK Jetting Calculator
Yamaha Blaster Compression Test	Yamaha Blaster Bogging	Yamaha Blaster Oil Ratio Calculator
Yamaha Blaster Engine Break in
Yamaha Blaster TORS Delete

Free Yamaha Blaster Repair and Troubleshooting Information

Ken OConnor Racing created these resources to help Yamaha YFS200 Blaster owners diagnose problems correctly and avoid replacing parts unnecessarily. The collection includes engine-assembly instructions, torque specifications, compression testing, leak-down testing, electrical troubleshooting, carburetor jetting and other important technical information.

Our interactive calculators can help you estimate carburetor jetting, calculate engine displacement and determine the correct amount of two-stroke oil for your premix ratio.

Information published by Ken OConnor Racing comes from a working motorcycle and ATV engine machine shop—not from copied product descriptions or unverified internet advice.

Keep This Yamaha Blaster Resource Page Handy

Save this page so you can quickly return whenever you need Yamaha Blaster specifications, repair instructions or troubleshooting help. You can also share this page on Facebook and in Yamaha Blaster groups to give other riders access to the complete collection.

As new Yamaha Blaster tech articles and calculators are published, they will be added to this page.

Need Yamaha Blaster Parts or Professional Engine Work?

The Blaster Store carries Yamaha Blaster engine parts, carburetor components, electrical parts, brakes, bearings, gaskets, tools and performance products.

Ken OConnor Racing provides professional cylinder boring, crankshaft rebuilding, cylinder porting, cylinder-head machining, case machining and complete Yamaha Blaster engine rebuilding. All machining and engine assembly are performed in-house.

Have an engine problem? Make it our problem.

Ken OConnor Racing
860-230-5003

Quality. Service. Price.
No excuses—just results.