Tech Pages

This is the spot where we keep enough information to give you a migraine. I’m constantly adding new stuff so check back often.
Enjoy!

Two Stroke Carburetor Jetting
High-performance racing carburetor parts for optimal engine tuning.
Two Stroke Cylinder Porting
Porting services for 2 stroke engines
How To Assemble A Two Stroke Top End
two stroke top end replacement
Head Gasket Failure
Ken OConnor Racing logo with Cometic branding.
Four Stroke Cylinder Head Maintenance
Motorcycle cylinder head for racing engines, precision-machined for optimal performance.
Air Filter Care
Ear plugs for race car drivers, designed for safety and comfort during high-speed racing. Perfect fo.
Piston Death
piston death and how to determine what caused it.
Vacuum and Air Leaks
High-quality ball bearings for racing and automotive performance.
Thumper Carb Jetting
Testing Compression
Online Motorcycle Repair School By Dan. This guy lives for this stuff!
Camshaft and Valve Adjustment Videos by Hotcams

Yamaha Blaster OEM VM26 Jetting Calculator

Engine Displacement Calculator

ATV racing on dirt track with dust clouds at Ken OConnor Racing.

Ken OConnor Racing Engine Displacement Calculator