Sounds like your carbs are junked up from setting over the winter bro. You should be able to punch it and just go no matter what. I have a 93 900 rr and its carbed and i cab unless i get some bad gas or the carbs get dirty like sitting over the winter can do that. If you dont want to get hosed by the dealer for a carb clean then you mite try a buddy but make sure they know what there doing caz they mite mess them up, Id do to the dealer and get it done right and be done with it. Im sure a carb clean would do you good and new plugs. Uh Huh

 

The carburetor bowls are like mini gas tanks and if you leave gas in them during storage, deposits in the fuel will collect and harden in the bottom of the bowl, forming a disk of intake-clogging poopiness. They are heavier than the fuel in the bowl and usually stay on the bottom like trolls (gnomes are much cuter and only live in gas tanks) during normal operation but when its WFO time, they jump up and scare away all the fuel from crossing the bridge into explosion land. It's like putting your hand over the end of a vacuum hose.

Fortunately carb bowls come off pretty easily. Turn your fuel tank to off (duh) though some gas will leak anyway. The bowls are the silver bowl-looking cups on the very bottom of each carb. There should be three Genuine Honda Screws attaching each one. All you have to do is unscrew it, remove it, clean it, replace it. x4. Done.

Keep it on a regimen of total fuel system cleaners. Spring for the expensive stuff. Techron kicks ***. And trolls.

 

I think I have the same issue going on. Where I notice it happening is when I turn the throttle more than 1/4th turn. Usually, that takes it to around 6000 RPMs. I replaced the fuel filter, ran carb cleaner through a tank of gas, checked the air filter, checked the fuel pump, and cleaned the carbs. Just before this started, I had replaced the spark plugs, because previously, they were completely fouled and the bike wouldn't start. I had also previously cleaned the air filter and re-oiled it.
In my case, it makes no difference as to how fast I open the throttle. Sprayed out with carb cleaner while I had the carbs off and cleaning.

The kinds of things I'm thinking at this point would be:
-sync the carbs
-pull the plugs again
-could be petcock screen as mentioned above

Outside of those three things, I think I'm almost completely out of ideas of what could be causing this. Any
further thoughts?

 

Even though this is an old thread, I think I found part of the issue. One of my plug wires becomes loose after it becomes cold. Then, there is some kind of periodic fault in the wires between the fuel relay and the fuel pump. Things are running again with the hot weather, so this fall, I'll get those parts changed out and will see if the bike stops running again this January.