Ontario Moto Tech Information
During the late 70's Ontario Moto Tech (really one man, Kaz Yoshima), was THE source for everything CB400F related.
Here is some jetting info from Ontario Moto Tech from the man himself
Quick Turn Throttle Install
Installation instructions for the quick turn throttle
CB400F Suspension Mods
Suspension information from 1976 Cycle World Magazine
Ontario Moto Tech Exhaust Install
Installation instructions for the OMT exhaust
Starter Motor Plug Kit
Installation instructions for the Starter Motor Plug Kit
Rake & Trail Calculator
Calculate the rake and trail when changing tires, shocks, forks, triple clamps.
Machining Software Calculators
Factory Pro Jetting Instructions
This is a must read before you start re-jetting to accomodate pod filters or a free flow exhaust. A great article from Marc Salvisberg at Factory Pro.
2005 CBR600RR Shock Rebuild
An excellent tutorial from Peter Verdone.
I did some FEA analysis of some various options for the CB400F. Stock Frame, braced stock frame, Egli frame, Trellis Frame.
CB400F Frame Bracing
I refined the above studies and limited them to practical solutions to bracing the stock CB400F frame