Keihin main jet length question and interesting article (PDF)

[RUNMEDOWN]

The attached article has some interesting claims that there is a significant difference between the long Keihin and short Keihin main jets. I always thought it did not make a difference as long as they could fit without hitting the bottom of the bowl and I have used both styles in the same machine. The chart on page 2 is very interesting, it claims that there is a large enough difference to offset jet size (#125 long jet = #105 short jet size) Opinions?

www.ozebook.com/compendium/t500_files/mikuni.pdf



EDIT: I am a moron, this is for Mikuni jets, may not hold true for Keihin.



sorry, still a good read though.