Just an update on one of the comments I made above.
I just watch several of my pump repair videos. In that one video you can see that the "TAIYOGIKEN" pumps were Japanese pumps.
So in the comment in this thread above where I said they were Chinese, that was wrong.
If you watch the two videos -- "Stock pump test" and "Repaired fuel pumps and flow testing" they give the best info I got.
CO
Edit again: Here is some info I have in my oddy files:
Mikuni pump flow is:
1054 oz per hour 17.5 oz per min
486 oz in oddy tank (3.8 gals, includes reserve)
1 us gal = 128 oz
This means that at that flow you would empty the tank in 28 minutes.
Obviously we get more ride time than that so the pump puts out a lot more flow than what we actually use. The deadly question is "how much flow do we need at full throttle ?".
CO
Edit: If you think you can add mix to your fuel and that will save an
Engine you are mistaken. More oil will NOT save your Engine in a lean out. You will melt a piston on the exhaust side. Some may not believe that but I stand by my comment. I have a box fuel of pistons as proof. There are threads here somewhere on those.
The next question is: How little fuel flow can I get away with on a fuel pump ?
I don't know the answer on that so I just stick with the Honda recommendation.
I'm certain you can get away with slightly less because at 4.5 oz in 10 sec flow you would empty your fuel tank in no time and we all know an oddy gets 10 mpg when you are on the pipe (actual mileage the way I have my machines jetted) and 17 mpg if you stay off the pipe. I know this for fact.
CO