It defies all the laws of physics to expect the same or more power from less oxygen delivered to an internal combustion engine.
An intake choke physically restricts oxygen delivery, anywhere it exists in the intake duct.
It doesn't matter what fudged or mis-labled charts, graphs, and opinions of uneducated, biased persons are presented here, regardless of their nationality.
It's not the first time I have to put it to you that the cover doesn't necessarily need to be a restrictor. It
could be if the opening that the CB500s in other markets (like US) had, was precisely matched for maximum power output. But that isn't the case, so what if the opening is overwide to begin with? What negative effect does our cover then result in? But there's more. What if the gauze net other markets have, cause extra turbulence? And what if the cover we have here, allows less turbulence? So what if that cover in combination with the rejetted 649A carbs, all in all is... fine?
Back to some basics, shall we? Here's a simple test that any uneducated, biased or unbiased person, can do. For reasons of impartiality, I won't do the test myself, but I invite owners elsewhere, regardless of their nationality, to do it.
Open your buddyseat and remove the tooltray so the top of your aircase is fully open. Start the engine that is already warm enough to run with chokes off. You may choose to run it at idle or above, say 2500 rpm. I don't care. Now cover half of the opening with a piece of carton that you have cut at forehand. Any change of rpm yet?
Now slide that piece of carton further over the top over the aircase, by and by covering more and more of its opening, further and further until you hear the rpm drop. Now look at the opening that's left. Isn't that amazing? You may take a picture and show it nonbelievers. But hey, don't fudge it, OK? Owners of an CO-tester, again regardless of their nationality, even the lunatics are welcome, are kindly requested to report if they see any change in CO before the rpm drop.
Now here's
my question. Why, if the topic is idle, choke etc, why, when I add something, why bring up the 649A carbs and the aircasecover we have again? What's this with your needle always in the same groove. I feel I can't even discuss a fuse or a taillight or you'll come riding out warning the members that they should know, I have a cover over my airfiltercase. So
what?As far as the laws of physics, I'm pretty confident my bike respects them. Now,
ahhh...
I've never told this anybody before but I come straightforward now: before every ride, my bike and I, in the intimitacy of our garage, always pledge allegiance to the Law of Physics. "I pledge allegiance to the Law of Physics and to the universe for which it stands, one world under Einstein, indivisible, with liberty and a whole lotta fun for all.”
Now although my bike never gives a blink - he is not like that, you know - I'm sure he understands and agrees wholeheartedly.
