S2R1000 Intake Honking

[WetDuc]

CONSTANT HONKING IS GONE! 
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The honking and the awesome power are very consistent from day to day riding.  I'm not a fan of the constant honking between 3-3.5k rpm, but I do like the sound when I am accelerating, THAT sound is SICK.  If the midpipes ever ship from Italy...this quest can proceed.
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At this point I think the noise I hear is intake honking.  I love to hear it when I'm getting on the gas, but as a constant honk in a heavily used rpm range, it's getting pretty annoying.  Next step is to get and install the midpipes then tune the bike.  I'm hoping after that I have the fueling I'm looking for.

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I suspect the udder right now more than anything.  I am going to take the Termi's off and run with just the udder to do a test today on the way into work.  I want to get rid of the backpressure completely as soon as I can so I can run the full setup with midpipes.  I'm thinking the Marvings.

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I got my new bike and I have a totally stupid question that is probably born completely of my insecurity and lack of riding time on the new-to-me 2007 S2R1000 I got.  It has 1400 miles, DP ECU and open airbox.
I have not ridden it too much yet, but I do notice that when I get on the throttle and accelerate hard, I hear a kind of clacking or loud clicking noise.  It stays in time with the RPM's and is only audible under heavy acceleration, I don't hear it when I slowly accelerate even at high RPM.  I do not notice any kind of change in power delivery, it seems smooth and predictable.
I noticed my buddy's 696 kind of makes a similar noise...maybe...this just seems louder.
Anybody notice anything like this or have any input?  I'm just curious and at the risk of seeming completely ignorant, I wanted to run it past you more knowledgeable guys and gals.
Thanks for the help.

[lofty55]

Do you have the stock exhaust?

I have the same bike and one time...

The plastic washer on one of the bolts that holds the heat shroud to the cans somehow broke and CLICKITY CLACKITY.

Rev the bike and push down on the shroud so it doesn't rattle to test it.

Just thinking out loud. Hope you find it.

Your not hearing the dry clutch chatter are you? Cuz that's normal. Where is the sound coming from? Front back bottom? Engine?

Good luck

[vossy]

More details like lofty said.

induction noise maybe on hard throttle??

[WetDuc]

If I were to try to generalize, I would say the noise comes from the engine front and center.  I do not think it is the clutch, as I was under the impression that the dry clutch only chatters when in neutral or with the clutch lever pulled in.
I do not have stock exhaust, right now the bike is just running out of the udder and I have the carbon termi cans, but they are not on the bike right now.
Maybe this whole deal is just from the udder?...

[lofty55]

Could be that the bike is tuned for your termis and not just the udder. I know when I put my arrows on with a new ECU and intake, it popped like hell til I had it tuned. You can also check your headers to make sure those 2 little screws are intact. One of those fell out on me and the bike started popping.

[DarkStaR]

Valves and rockers.

[A.duc.H.duc.]

Valves and rockers.

Sounds like valves and rockers to me too.

It's probably nothing terribly bad. Adjust the shimming on your valves and it should quiet down.

[WetDuc]

So I rode for 4 hours today traveling from Atlanta to Tallahassee.
Let me say I love this motorcycle.
I had the Termi's on with the udder.  I think I need to modify my terms used to describe this noise.  It's more like a knock than a clack and I notice it mostly between specific rpm ranges around 3-4k.  If I'm cruising at 3700rpm, I hear the knocking the loudest.  Just over 4k rpm and the sound is gone.  Below 3k rpm it is not very noticeable, but comes up again when I accelerate.
To me it sounds like it's coming from the engine and I'm wondering if it is because the bike has the DP ECU and chopped airbox, but still has the udder.  I'm not 100% sure, but I think the clacking/knocking noise is more noticeable when I have the Termi's on rather than when I am just straight out of the udder.  Personally, I feel like I have to get some midpipes and run it like that to see if the noise is simply from the udder causing excess backpressure.
I can hear the valves and rockers, and I don't think this noise is coming from them because it is quite loud and sounds more like exhaust...but I really am not sure.
The bike feels fine and the power is good and smooth, but if I try to cruise around 3.7k rpm, the sound is super annoying and I know it's not right.
Currently shopping midpipes.

[DarkStaR]

Does it sound like piston knock?

What gas are you using?

If your using low grade gas, try going up a grade, and see if it still happens.

[WetDuc]

I'm really embarressed.  I'm not really a total idiot, I just really make the beast with two backsed up this time.
Upon getting work I realize my horizontal cylinder spark plug is not plugged in.  I was horrified.  I believe it happened when "we" were cleaning the bike in Atlanta before the ride to Tallahassee.
I plugged it, did a test ride.  The noise is still there, located more around 3.4rpm and much quieter, but it does sound when I accelerate.  It sounds like woodywoodpecker is in my engine (just trying to describe the noise).


I hope I didn't kill my bike...hopefully you guys will agree it's not dead.  I can't believe it ran...

[WetDuc]

Could I just be hearing the open airbox and not realize it?  My 695 had a stock airbox, the S2R has had the top lid chopped.
I can definitely hear a roaring noise coming from the airbox area when I accelerate hard, and I hear a similar noise in the 3-3.5k rpm range, the steady noise at the 3-3.5k rpm range has kind of a pop to it, but it definitely similar to the roaring noise when accelerating.
Excuse my ignorance, this bike is new to me and I'm trying to learn without having to submit to my local dealership for everything.

[Howie]

Could I just be hearing the open airbox and not realize it?  My 695 had a stock airbox, the S2R has had the top lid chopped.
I can definitely hear a roaring noise coming from the airbox area when I accelerate hard, and I hear a similar noise in the 3-3.5k rpm range, the steady noise at the 3-3.5k rpm range has kind of a pop to it, but it definitely similar to the roaring noise when accelerating.
Excuse my ignorance, this bike is new to me and I'm trying to learn without having to submit to my local dealership for everything.

Yes you could, problem is we can't hear it.  Any possibility of finding an educated local ear?

[WetDuc]

We are an endangered species riding Ducati's in Tallahassee.  I'm trying to get someone at the dealership to ride it, but they won't even do it without a work order...
The more I listen to it, the more I think it is intake honk.
I'm more curious why it would show up in just one specific rpm range as a constant honking but otherwise is almost silent unless I accelerate hard.

[zarn02]

We are an endangered species riding Ducati's in Tallahassee.  I'm trying to get someone at the dealership to ride it, but they won't even do it without a work order...
The more I listen to it, the more I think it is intake honk.
I'm more curious why it would show up in just one specific rpm range as a constant honking but otherwise is almost silent unless I accelerate hard.

I could see intake honk being "woodpeckerey" under the right conditions (such as your helmet or ear plugs [if you wear them] filtering out other noises more] ).

I know both my 900 and the 996 (God rest them both...) would have noises that only seemed to come through at certain RPM ranges.

That said, if you find it worrisome it's probably worth a few bucks to have somebody take a peek at it.

[lofty55]

Chopped air box, termis, dp ECU, still has the udder. Was it ever professionally tuned? When I did these mods, my s2r ran like crap until my mech hooked it up to VDST. All sorts of crazy noises before vdst.

I could be wrong but.... you can't just throw all these mods at it without tuning for the changes. Did the previous owner mention anything? Is your dp ECU for slip ons or a full system?
If you eliminate the udder now, you will need to flash the ECU to full system specs. Was the exhaust purchased with the ECU or pieced together?

I paid my mech $200 to tune it. VDST alone is $200 but I don't know the ins and outs of tuning so it made more sense for me to pay to have it done. Pick your battles I guess.

If your answer to all this is, "yes its been tuned," then I'm stumped.