After months of waiting, I finally got the new '22 to replace my fabulous '12 with 86K miles. As great as the old bike handled, what a difference with new suspension. I mirrored the suspension settings from the old bike and then made some adjustments while on a 300+ mile shake down ride. The handling is superb, especially with the BST wheels from the old bike.

Brock's CT 4-1 titanium pipe is already installed, along with a flash. The bike made 208hp. I was expecting a little more because the dyno will "read" a little higher with the carbon wheels. However, the bike only had 600 miles so it should pick up a few more hp over the next few thousand miles.

Blais Cycle in Dania, FL has been taking care of my biker for over 30 years and did the flash. The old bike fueled perfectly with their flash. I do have a small issue on the new one. Throttle response and roll on are superb. However, when coming off the clutch in first gear, at very light throttle, there is a bit of a hesitation/bog. Same thing in 2nd at low speed getting back on the throttle lightly after closed throttle. Also, fuel mileage sucks. On the old bike, between 65 and 85 mph, I was consistently getting 38-50 mpg according to the display. The new bike, 33-38.

We went back into the map and leaned out the "cruise" area of the map, as well as the the first 10% throttle, both of which were rich. It's definitely better, but the hesitation is still there. Fuel mileage is a little better.
I don't know why the old bike was so much better. Same tuner. Perhaps the current ECU. We tuned out O2 sensor, which Brock's recommends when tuning for fuel.

So, to the expert tuners out there, since I believe that the O2 sensor is closed loop, what about reinstalling the O2 sensor and going back to factory settings ONLY for small throttle opening and cruising at 3-5K rpm in 6th gear? Or should I leave the O2 "turned off" and keep playing with low speed.

If I have to live with it, it'
s no big deal because you can ride through it by using more throttle off the clutch in 1st gear.

All in all, a fabulous bike. But we all know that. The new Busa? Definitely more advanced, and maybe refined. But the motor. That 1441cc monster engine can't be beat.

Thanks for any help, and feel free to ask me anything about the '22.

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Lookin GOOD!Congrats on yer new beastie.Did you add a po-1-85 sprint to it?Perhaps a tad more timing on the low end?
Very nice color...have fun!

Stock filter for now. Are most flashes giving more timing on the low end?

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The filter will increase airflow,which could help with fueling.As for timing,I couldn't say.But it seems to pep up motors like these,to a point.Maybe contact Brock's?Just ask em what they think.Couldn't hurt.They'll answer ya for sure.You can call or live chat or send a message to em.They've always responded quick to me.

* Last updated by: Grn14 on 1/10/2022 @ 11:02 AM *

I think I need one of these.

Throttle response and roll on are superb. However, when coming off the clutch in first gear, at very light throttle, there is a bit of a hesitation/bog. Same thing in 2nd at low speed getting back on the throttle lightly after closed throttle.

I had the same thing with my 08. It wasn't bad when the engine was cold but as soon as it warmed up, it was very oticeable, only at very small TPs. I believe it was the throttle sensor in need of adjustment. I calibrated the throttle sensor with my PC5 but that didn't help. My bike did it from new with factory fueling and also tuned with Auto Tune. I'm not recommending it because I never tried it but there was a member here, 44magnum, who said he fixed his by loosening one of the sensor fasteners and turning ever so slightly then going for a test run. You also might check the voltage on your current sensor.

All in all, a fabulous bike. But we all know that. The new Busa? Definitely more advanced, and maybe refined. But the motor. That 1441cc monster engine can't be beat.

So far, looks like a bunch of cool bells and whistles but if it's not going to beat a 14R, I'll pass. I prefer my 2008 busa to the Gen3 busa. I think you got the end all and be all of hyperbikes.

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Foolishly, I had the exhaust and flash done before I rode the bike. So, I think the first step is to put the map back to stock and see if it's back to normal. That will determine if it's the flash or the bike. I'll report back.

I'm starting to think it may be the later series of ECU and the O2. The O2 sensors came in 2016. I'm sure there are guys out there who have flashed and piped a 2016-2021 14R and who have or haven't run into this. Anyone?

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I have nothing conclusive to say. I'm going to throw it at the wall and see if it's so off the wall... If we are on the same seat; I've gotten that stumble out of the stock bikes I've had. Both gens sort of have that. I would more call it an intervention stumble from take off, or rolling combo. And not all the time.

And say, almost every time would be a problem of that being around if say a sprocket change. Would the flash have set that off every time on lift, then accel, or start out from a dead stop? I doubt it if you are saying this occurs occasionally. The start off stumble, to rolling stumble and that combo I'm saying, is that it happens with a certain cross-input for a better act of its stumbling. It is WATT it is if I had to throw it at the wall and say the occasional occurrence is even for stock ECU's.

Have to remember also, you added more fuel to make more HP. A stock out the pipe is 14.1 of air to fuel ratio. So rich torque squirts 12-13a rounds. Can't have both words, unless you find/buy the same part number ECU showing year ranges, etc. Swap the ECU's, ride with the pipe/02 plugged in; no problem.

If say the flash just turned off the code light on the dash, the shop manual says it shuts off the 02. I have no clue if you reinstalled the 02, the ECU is going to recognize it's being sent input, and might learn or who knows, but I pulled the 02 connector and the older non-02 gens would clear the code once connected.

This 02 I have took a few keyfob strokes of 14 or 20 times taking the bike out before the code cleared off the dash. I mean, the only way to answer if reconnecting the 02 would show better gas mileage, is to run the gallons to miles, or see instantly with mounting an AFR meter to it and watch the 02 at cruise, then WOT, and so on.

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And the more I think of it... throwing it at the wall... we are taking at the speed of light, add the resistance and all that... I've watched an ever so slight move of AC of even half a C-hair, WATT are the chances your wheel moved before the tire kind of intervention interrupt?

I think between wheels out of sync that millisecond... go look at the wall

Signed,
Ripple Effect

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Thanks for your input. Tomorrow I'll be having the shop go back to the stock ECU settings and reinstalling the O2 sensor. If all is back to normal, then I know it's the map that needs to be dealt with. If the problem is still there, then it's something with the bike, which I hope is not the case.

That being said, I had no issues with my 2012 after exhaust and flash.

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I'm starting to think it may be the later series of ECU and the O2. The O2 sensors came in 2016. I'm sure there are guys out there who have flashed and piped a 2016-2021 14R and who have or haven't run into this. Anyone?

My 2018 has the Ivan flash and Akra slip-ons. I installed both around the same time but had ridden the bike 4-5K miles until then (bought new). Did not notice any hesitation whether overall or at a specific RPM. Has about 10K now. Runs beautifully.

Congrats on the beautiful new bike!

* Last updated by: ManiZ on 1/13/2022 @ 12:36 PM *

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Thanks for the info Mani. Since you have slip-ons only, are you using the O2 sensor?

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I was trying to edit my post when I saw you were actually asking about the full system...sorry missed that. I did not need to touch the O2 sensor.

If you have someone local to you with a newer 14, try to see if they'll let you swap in their ECU for a ride so you don't have to reflash yours just to check?

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So I had the O2 sensor put back in and the map put back to stock, just to see if that off idle hesitation would be eliminated. Nope. Even worse. So that tells me it’s not the bike and that the O2 sensor does not like the Brock’s
CT 4 exhaust. That titanium exhaust is a work of art. Beautiful welds and fit and finish. I think these later model have been screwed up with the newer emissions standards.

Had the O2 sensor put back in on as well as the flash. Other than that slight glitch, the bike runs fantastic. Even better throttle response and roll on than my 2012, and that bike ran great.

I can live with it. It’s really not bad. You throttle right through it almost immediately. I’m gonna bring the bike back in at 3K miles, put it on the dyno, and see if we can tweak it a bit to get rid of the glitch.

I’m happy for now.

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What I used to do with mine was open the throttle a bit and then roll right back. By that time, I was out of the bog rpm. It never effected my sport riding so I didn't feel it was something I couldn't live with. It's a shame to have such a great bike and have that little glitch though.

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Happened just the other day. Got off my exit, and lift, so as to time it where I hardly use the brakes. A dead stop, take off, that stumble hesitation (if that's what you're feeling), clears up, shift, nothing after that.

Does it do it every time? No, but that combo of lift, dead stop, take off, pretty much happens there more than once. I mean if that's what or how we can say the same thing is going on with the bike. So do you coast some, then stop, then take off within 10 seconds or less?

That does not bother me at all. And for you looking for someplace else, it's no codes, no need to look at the telemetry. Any senor goes out, it will show up at the dash. If we are taking this tiny take off stumble, don't bother looking.

Signed,
Comes free with the bike

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Mine was 1-2% throttle at 2500 rpm or less. I only did tat when I was riding very slow. Never had the problem when I was in the clutch but after takeoff, just putting along, it would happen every time. Second gear too. Never noticed it in third or higher.

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With Ivans flash you can remove the 02 sensor or leave it alone. it doesn't matter.

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Hi there,

I had my 2018 with 2200 miles on the clock dyno tuned by Ron at Blais Cycle as well , added race sprint filter , ice coolant( or whatever the name is), full gp M4 exhaust , 211 hp , I did notice a bit of hesitation off of 1st gear once in a while but I think their tune is more top end oriented , again I barely notice it , bike runs amazing , if I get it off hard off of 1st gear there is no hesitation…. So either way I am happy . Decel pops are very aggressive but not obnoxious… love it !!

* Last updated by: zx14r9040 on 1/18/2022 @ 9:24 PM *

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That 1st gear hesitation is what I have, and the same when lightly rolling on the throttle in 2nd after slowing down to about 2500 rpm. And like you, if I use more throttle coming off the clutch, it's barely there. I can live with it, but we'll try to tune it out when I get back on the dyno in a couple of thousand miles to see if I picked up any power. I don't have the aggressive decel pops (thankfully) because Ron plugged the pair system.

One thing that really surprised me is that the bike came very rich up top from the factory. We didn't need to add any fuel up top. The dyno showed top end AFR right on the red reference line, around 13.5.

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I don't think you can tune that hez out. That's seems more like tone wheel intervention to me, if not another guess? I rather feel it occasionally knowing the telemetry is catching every little spike change at that certain area. I've felt ABS intervention totaling out one bike. I've felt back wheel hez in the dirt by spinning it up. And now add the start out glitch, but really not a glitch.

Mother Tea looks in here, they may address this as a challenge to their programmers. Other than that, I believe we or most have felt this a few times? Is it in every bike? Only a willing poll knows for sure. Mine is bone stock so I have it, if say lifting and coasting to a stop, then ride off>> hez-hez, 2nd gear> hez-hez, jerk-jerk = No problem found.

Welcome to the computer bike.

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So with my 07,stock,it had a slight bog affect if I opened it pretty much all the way starting in 1st.Never noticed that going into second and hitting hard.The bike had aftermarket piping.
My stock 2013 had a similar bottom response,but with a new freer flowing muffler it was virtually gone.Also a flash.No PC5.The latest flashes from reputable guys could PROBABLY tune that 'bog' out.Or are we talkin =1st gear start out rolling then hammer it?Then the hesitation?It shouldn't be doing that.Maybe stock.But not flashed and/or piped.
Change the air filter also?Installing a higher flowing filter will help,along with the flash.Can always talk to the guy flashing it and tell em what's going on.I would do that if it were mine.Your results may vary....

Older thread I know but has anyone had a resolution to this above issue? From reading around it sounds like the o2 sensor could be the problem with slip on's. I have a 2017 with Two bothers slip on's and a power commander 5. Im having the same sputtering issue in the 5% to 10% throttle range between 2500 and 4000 rpms. From what I understand a power commander can not tune this out because of the closed loop 02 sensor overriding and making adjustments on the fly with the ranges I mentioned above.

So any luck removing the sensor using a kawasakibrad )@ eliminator or any tricks or work arounds that may have worked for you all????

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Oldman,
I sent my ECU to Ivan at Ivan's Performance. Bike is PERFECT. Best flash I have ever had. No glitches anywhere. Same max hp, but everything else is better, throttle response, engine temp, fuel mileage (significant improvement).

Check out his website. Every claim he makes is valid.

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was trying to edit my post when I saw you were actually asking about the full system
...sorry missed that. I did not need to touch the O2 sensor.

You write every post so well. Keep the hard work going and good luck. Hope to see such a beneficial post ahead.