Problems with my EFI setup... Injector Timing/Size

[Thor Johnson]

I can't seem to lean out the EFI unit that I built for a honda CBR600 
motorcycle.  I figurest that I would be running the duty cycles real low 
(except on Accel), but I could still run with 20.88 (Toyota) injectors.  
ut I run REAL reich, and any attempt to lean it out results in a kill 
(probably trying to do too short of a pule to the unit).

Stats:
Honda CBR600 (600cc)
13/15"Hg during idle
Toyota 12 ohm 20.88 lb/hr injectors, Multiport
Advance Auto P/N# 11020 Oxy sensor

Are my injectors just too big to work right?
What voltage should I be looking for to stop fouling these ($7 apiece) plugs?

Thanks for the (much needed) help!

                Thor Johnson
          johnsont at falcon.cs.mercer.edu
     http://falcon.cs.mercer.edu/~johnsont
                                                    
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