S s s s studder...

Hey everyone. Thanks in advance for giving me some info...
I've got a couple of questions.
First, I have a 02 CBR 954 with 5700 miles. When I roll on the throttle in just about any gear, the bike studders at low RPM... I've been told that this is the case with all fuel injected bikes, still I was curious how to fix it. I cleaned my air filter, checked the plugs and changed the oil, but it still does it. On the other hand... Its never jerky when I'm at a higher RPM. Is it the way I'm riding? Should I be crusing at a higher RPM?
Second, what is the average RPM range when driving in the city or commuting? I keep it at around 4 grand most the time... To high? To Low?

Last but not least... The front brake fluid holder(technical name ) has a rubber washer in it, for some reason its sideways in there, like floating... Can I unscrew and open the top of the resivour to straighten that rubber thing without goofing up my brakes or having to bleed them??? The brakes are working fine, its just bothering me floating around like that...
Thanks again. Sorry so long.  

What do you mean by "studdering"? Are you saying that it bucks a few times before clearing out and going? Or are you talking about a hesitation before it accelerates? At what rpm and throttle position are you at when this occurs?

Regarding your brake fluid reservoir: As long as the reservoir is level, you should be able to unscrew the cap and align the diaphragm without having to do anything else. The diaphragm (the "rubber washer" you speak of) is there to keep a vacuum on the brake fluid as it displaces and seal it off from exposure to outside air, otherwise the fluid absorbs moisture and will corrode the brake internals.  

Hmmm.  Do you mean "stutters"?  Maybe you're talking about the driveline lash all bikes can have at low RPMs, especially at low speed.  That's just the rear wheel getting ahead of the chain slack and lightly pulling the revs up momentarily, then the wheel slows slightly, the revs drop and the cycle repeats.  Does this sound like what you mean?

It doesn't hurt the bike but it's admittedly uncomfortable and a bit annoying.  To avoid it, just accelerate smoothly.

The right RPM range depends on the situation.  (Yes, I know saying that doesn't help much.  However, bear with me here.)

The 02 CBR954RR cruises nicely at 60 mph and 4K RPM in 6th gear and behaves well in 6th gear down to 45 mph and 3K RPM.  That's where I ride mine in reasonably freeflowing freeway traffic, downshifting as needed when traffic slows.  Coasting up to suburban stoplights I'll let the revs drop to 2,500 or even 2,000 RPM while downshifting to a gentle stop.  But 3K RPM is the low end of the power band and the bike doesn't pull well down there when you give it more throttle.  (This can be helpful to avoid wheelspin when powering out of sweeping curves, but it that's another kind of riding.)  So, in commuting traffic I'll keep the revs up in the 4K-5K RPM range if the traffic is fast and chaotic or I'm riding aggressively.

I've also found my bike gets much better gas mileage if I keep the revs down at steady speeds in commuting traffic, rather than spinning 4K-5K RPM all the time.

At 6K RPM a CBR954RR really starts to come alive and at 8K RPM and above it's a beast.  Those higher RPM ranges are for serious sport riding on empty, well familiar roads... or better, a track.  

Hi,

My rubber thingy floats around to, I changed the fluid this year and it's still there, it hasn't hurt anything.

I almost never ride my 954 below 6k, I usually cruise at 7k. Most of the times if I get it into 4th gear it's just to say I did or traffic is up above 80. That should take care of the stutter as you'll have much more driving force and less stutter. Remember this bike is not tuned to "cruise".

A question would be why are you driving around at such low rpm, as long as the cbr can remove the heat from the engine you are fine, ever look at the size of the radiator? It's meant to remove the heat of 11k plus rpm. The bike is much more fun up there as well you can even get a touch of weigh trasfer going at 7-8k.