It's not really a restriction fully open as the Cat is just upstream of it and all the flow comes through and is split at the valve. It won't really affect back pressure as the Cat also (mostly)controls that. It's there mostly for noise emissions but yep, a great idea to remove and code it out or use one of the several dongles on the market which you fit across the servo to disable it without throwing a code from the ECU. The alternative is to remove the actuator cables and leave the valve in place in the fully open position. Next to no difference in performance.
Really best to keep all stock parts when modding a BMW. They normally have great resale value but much much easier to sell if return to stock (or at least supply new buyer with original parts). Spend the $50 and you’ll get it back when you sell the bike. Swap takes only 10 minutes and makes bike easier to sell without unwanted mod
Mate! Awesome video! Saved me a lot of hassle! The 2021 models have the flapper welded as part of the entire header system! Shit design! Luckily I'm replacing the entire exhaust and header system!
Hi, Ahmed. Yes, I heard the cheeky buggers have welded them into the system now. Good to hear you're going for a full system - response and power gains can't be underestimated. You're gonna love it!
Hi Mark, I enjoy your videos and thank you for sharing. Quick questions and sorry for sounding silly but why did you remove the charcoal filter? Also, if I purchase an after market exhaust would it not accommodate for the space flapper valve removal?
Hi, Adnan. My bike is a 2015 and didn't come with a charcoal filter. And if you replace the exhaust, you will need an adapter link pipe if you remove your flapper valve. Scott
I have a 2020 R Nine T and live in a busy city and my engine temp goes up to 275 degrees Fahrenheit after about 45 minutes of city riding. It's overheated twice with white smoke coming out of the engine on both sides. Since these issues, I have adapted my riding to reduce city riding and go for longer highway rides. Has anyone else had this problem? Thanks for posting this video Scott.
Ooh yes mate, best to avoid congested city riding - these things only have a small oil cooler and rely on a good stream of air to keep cool. Out of curiosity, in which city do you live?
@@2random628 Oh man, I LOVE New York City! Great place but I reckon I'd have nightmares on a bike competing with the cabs. Sorry to say it mate but keep the R Nine T for flogging around on the weekend upstate and get a beater for your day to day commute. Stuck in traffic on your Beemer is gonna give you constant grief.
Hey bud, l living in the NYC with a 2017 r9t. never encounter the white smoke issue.. when is last time you changed your engine oil? there is a fan mod you can get for the oil cooler, but the best you could do riding in the city is to filter when you can and avoid long idling - Mine goes beyond 280F all the time and I sometimes turn the engine off in summer days stuck in a long traffic light. Those engine are bulletproof though, keep the engine oil clean and full and you'll be fine!
Hello there, thanks for the video, Im planning to do the same to my bike. Is your header system a titanium replacement? Did you heat it to get the blueing or did you let nature and a hot engine do the job naturally? Looks very nice...All the best from the uk
@@thatrninetguy Thats great..they do look good...i think I will let nature take her course rather than heating them up before I put them on sadly im in england where its snowing at the moment so it is I rather than pipes that are a delicate shade of blue!
Tell me is the engine braking less obvious when this flapper valve is removed? I plan to remove that and also get free flowing headers, not that I mind the engine braking on our bike, but want to get it a bit more relaxed, just a bit… Will this solve my problem?
Mmm...good question. I "think" the engine braking reduced a bit. It's difficult to say as I ride pretty fast and brake hard but I reckon removing it makes a difference.
@@stevecotterill7981 Steve, I've been riding for 35+ years and I have never, ever had a bike that I've enjoyed owning and riding so much. It is so easy to work on and customise. You won't regret buying one. I know the bike inside and out and now that my girls have grown up and I have some free time, I thought I'd make a few videos to share my journey with the old girl. They kids think it's an absolute laugh that I created a TH-cam channel and that I have 25 subscribers! Haha. Stay tuned, mate - I have a lot more interesting vids about the bike and also my hometown where I ride. Hope you find my rantings interesting.
You won’t feel the difference riding it with the eliminator, you are not chasing 100th’s on a lap time. I’ll be leaving mine in on my 2018. Unless I want to change it for looks which is a different reason for doing it. But crack on mate 👍🏻
Yeah, mate, I agree. You're not going to notice the difference. My main reason was to see how much power I could extract out of the motor. Deleting the valve took that minor restriction away.
Thanks, Dennis. My bike is a Euro 4 so unfortunately, I can't answer your question. For piece of mind, it's always best to have your bike dyno'd to check the AFR (Air Fuel Ratio) when changing anything to do with air itake or exhaust.
What if you just remove the cable from the valve module? It will be opened all the time, so You don't need to retrofit anything If you want to stay in stock - you just put the cable in. Am I Right?
@@marcsterling No, I didn't. But I have a 2015 Euro 3 bike and the ECU is different than the later models The internet is FULL of info on all sorts of fuel modules and other solutions like flash tuning etc that you "need". But I thought I'd have the bike dyno'd to see what the numbers were before committing to solution. Results were that the ECU did a tremendous job relearning after all of the mods and the AFR numbers were spot on. I uploaded a video of my bike being dyno'd too if you want to see that. If you have a later model bike with a different ECU to mine you're best off getting it dyno'd to check the numbers in case you're running lean.
Hello Mark, greetings from Paris. Thanks for the great vids. I have 2 questions need ur feedback based on ur experience.. 1) is an R Nine T comfortable on long rides (+500km per day)? 2) Is it DIY friendly for all repairs (mechanical/electrical) ? Do you get OEM spares, diagnostic tools easily in open market or u r stuck with BMW only. Appreciate your inputs please.🙏
Hi, mate. To answer your questions, I have done some 500km rides and it is very comfortable. And yes, it is very easy to work on. I buy OEM oil filters and crush washers from my local dealer but oils etc, I buy separately. Don't be scared to work on the bike yourself - there is a lot of info out there. All the best.
@@thatrninetguy the function of the exup valve is to give more torque at lower rpms. removing it does not give more sound, it only reduces the acceleration. So its very stupid to remove that valve.... but feel free to try it. And please test you bike while accelerating against a valve fitted model of the same mark and type.
@@jeroenkragten8342 I understand your point. I didn't notice any difference in torque at low rpm to be honest. With me, I'm after performance on track at higher revs. With a catless exhaust, removing any restrictions was the goal.
@@jeroenkragten8342 This is not an Exup valve. Those were fitted to some Yamahas R1/Fazer 1000 and sit directly in line of the headers and so resticts the flow at lower revs and gives more torque. This is a flapper valve which is completly different in purpose. It is there to get the bike through noise regulations, it is closed upto the point were they take the reading and then opens just past it and lets the gases flow unristicted. Other manufactures use the same trick only in various places in the system.
@@paulgarner8914 hi Paul Your answer interest me. i just bough a nine t pure from 2019 (so euro 4). someone ask me if i’m ok to trade is Classic akrapovic from a 2021 with my pure Muffler. i like the style and sound of the Classic euro 4 with the Akra, but was wondering if i would «loose » a great sound with the muffler of an euro 5 bike or the muffler are exactly the same ? i heard the euro 5 sound came from another part. True ? thanks simon :)
The replacement part is perfectly smooth. Eliminates the friction and turbulence compared to open flapper valve. Obviously 15% less flow doesn’t give 15% more horsepower
Thank you for all your videos and advice, they are very much appreciated 😎🤘
Nice video, look forward to seeing more 😀
It's not really a restriction fully open as the Cat is just upstream of it and all the flow comes through and is split at the valve. It won't really affect back pressure as the Cat also (mostly)controls that. It's there mostly for noise emissions but yep, a great idea to remove and code it out or use one of the several dongles on the market which you fit across the servo to disable it without throwing a code from the ECU. The alternative is to remove the actuator cables and leave the valve in place in the fully open position. Next to no difference in performance.
FANTASTIC.
Thank You.
VERY VERY SERIOUSLY considering purchasing one. (2022 R9T urban GS, white, red seat, spoked gold rims)
Subbed.
Regards.
(Melb. Vic.)
You won't be disappointed, Terry. Such a wonderful bike for so many reasons.
good video thank you - how it operates and it is driven by what?
Easy peasy mate good vid
A good video did this on my GSA much better sound look forward to more.
regards From Scotland
Thanks, Ian. Gotta get to Scotland one day. How are things going up there? Warm enough to ride?
Hello Scott, Gamotur installed the electronic servo buddy, then discarded all the hardware related to servo gear. Cheers:)
Good job, mate.
Great stuff Scott, I would strip the original tube and reinstall it. (a few spot welds of course) And save the fifty. Cheers Mate.
Never thought of that, John! Could've bought a slab with that fifty!
Really best to keep all stock parts when modding a BMW. They normally have great resale value but much much easier to sell if return to stock (or at least supply new buyer with original parts). Spend the $50 and you’ll get it back when you sell the bike. Swap takes only 10 minutes and makes bike easier to sell without unwanted mod
What does this do to the programming?
Mate! Awesome video! Saved me a lot of hassle! The 2021 models have the flapper welded as part of the entire header system! Shit design! Luckily I'm replacing the entire exhaust and header system!
Hi, Ahmed. Yes, I heard the cheeky buggers have welded them into the system now. Good to hear you're going for a full system - response and power gains can't be underestimated. You're gonna love it!
Are you sure the ECU is able to be flashed? Ditching the cat is going to change the tune. I heard the new ecu's aren't unlocked yet.
The valve also controls back pressure. You will loose low end torque due to lack of a pogo effect.
Hi Mark, I enjoy your videos and thank you for sharing. Quick questions and sorry for sounding silly but why did you remove the charcoal filter? Also, if I purchase an after market exhaust would it not accommodate for the space flapper valve removal?
Hi, Adnan. My bike is a 2015 and didn't come with a charcoal filter. And if you replace the exhaust, you will need an adapter link pipe if you remove your flapper valve.
Scott
@@thatrninetguy Thanks buddy. Ride safe and thanks again.
I have a 2020 R Nine T and live in a busy city and my engine temp goes up to 275 degrees Fahrenheit after about 45 minutes of city riding. It's overheated twice with white smoke coming out of the engine on both sides. Since these issues, I have adapted my riding to reduce city riding and go for longer highway rides. Has anyone else had this problem? Thanks for posting this video Scott.
Ooh yes mate, best to avoid congested city riding - these things only have a small oil cooler and rely on a good stream of air to keep cool. Out of curiosity, in which city do you live?
@@thatrninetguy I’m in NYC. Any mods I could may due to the radiators to keep the temps down?
@@2random628 Oh man, I LOVE New York City! Great place but I reckon I'd have nightmares on a bike competing with the cabs. Sorry to say it mate but keep the R Nine T for flogging around on the weekend upstate and get a beater for your day to day commute. Stuck in traffic on your Beemer is gonna give you constant grief.
Hey bud, l living in the NYC with a 2017 r9t. never encounter the white smoke issue.. when is last time you changed your engine oil? there is a fan mod you can get for the oil cooler, but the best you could do riding in the city is to filter when you can and avoid long idling - Mine goes beyond 280F all the time and I sometimes turn the engine off in summer days stuck in a long traffic light.
Those engine are bulletproof though, keep the engine oil clean and full and you'll be fine!
Modified mine by adding fans to the oil cooler. Maintained tempt. to 117 deg. C.
Will this flapper delete and servo cables detached works fine with rninet 2014-2016 models without warning lights?
Yes, mate. Mine's a 2015 so if you follow the video to the letter, you'll have no warning lights or other problems whatsoever.
Hello there, thanks for the video, Im planning to do the same to my bike. Is your header system a titanium replacement? Did you heat it to get the blueing or did you let nature and a hot engine do the job naturally? Looks very nice...All the best from the uk
Yes mate, the headers are titanium Akrapovic. The blueing is just from running the bike.
@@thatrninetguy Thats great..they do look good...i think I will let nature take her course rather than heating them up before I put them on sadly im in england where its snowing at the moment so it is I rather than pipes that are a delicate shade of blue!
Tell me is the engine braking less obvious when this flapper valve is removed? I plan to remove that and also get free flowing headers, not that I mind the engine braking on our bike, but want to get it a bit more relaxed, just a bit… Will this solve my problem?
Mmm...good question. I "think" the engine braking reduced a bit. It's difficult to say as I ride pretty fast and brake hard but I reckon removing it makes a difference.
I also feel like the engine braking is reduced and also sounds better while doing it
Merci
Scott why not pop your camera/phone on a cheap tripod. Be good to see both hands in action... great video. 👍🇬🇧
You took the words right out of my mouth, Steve. Tripod on order!
@@thatrninetguy
Loving your R9T Scott... very informative videos.
I've been having a nose around the Scrambler/GS locally.
Cracking bikes. 👍
@@stevecotterill7981 Steve, I've been riding for 35+ years and I have never, ever had a bike that I've enjoyed owning and riding so much. It is so easy to work on and customise. You won't regret buying one. I know the bike inside and out and now that my girls have grown up and I have some free time, I thought I'd make a few videos to share my journey with the old girl. They kids think it's an absolute laugh that I created a TH-cam channel and that I have 25 subscribers! Haha.
Stay tuned, mate - I have a lot more interesting vids about the bike and also my hometown where I ride. Hope you find my rantings interesting.
You won’t feel the difference riding it with the eliminator, you are not chasing 100th’s on a lap time. I’ll be leaving mine in on my 2018. Unless I want to change it for looks which is a different reason for doing it. But crack on mate 👍🏻
Yeah, mate, I agree. You're not going to notice the difference. My main reason was to see how much power I could extract out of the motor. Deleting the valve took that minor restriction away.
Great videos!
Are there any performance or engine issues after removing valve on Euro5 NineTs ?
Cheers :)
Thanks, Dennis. My bike is a Euro 4 so unfortunately, I can't answer your question. For piece of mind, it's always best to have your bike dyno'd to check the AFR (Air Fuel Ratio) when changing anything to do with air itake or exhaust.
At low RPMs, the valve partially closes to create backpressure. This aids in scavenging and prevents reversion, which improves low-end torque.
Does it equate to a 15% restriction, or does it simply divert the flow slightly 🤔
Well, technically it would only divert the airflow but my point is it restricts the free flow of the exhaust.
What if you just remove the cable from the valve module? It will be opened all the time, so You don't need to retrofit anything If you want to stay in stock - you just put the cable in. Am I Right?
Hi, Gytis. Yes, but you'd still have close to a 15% blockage. Getting rid of it fully opens the pipe for best performance.
@@thatrninetguy and it’s also ugly AF on an otherwise gorgeous bike
Did you loose any bottom end torque when removing it?
Not at all. At the same time I removed the flapper, I fitted a DNA air filter and titanium headers. She pulls pretty hard.
@@thatrninetguy awesome! I'm probably gonna run a similar set up at one point. Did you have to do any kind of tune or anything with your set up
@@marcsterling No, I didn't. But I have a 2015 Euro 3 bike and the ECU is different than the later models The internet is FULL of info on all sorts of fuel modules and other solutions like flash tuning etc that you "need". But I thought I'd have the bike dyno'd to see what the numbers were before committing to solution. Results were that the ECU did a tremendous job relearning after all of the mods and the AFR numbers were spot on. I uploaded a video of my bike being dyno'd too if you want to see that. If you have a later model bike with a different ECU to mine you're best off getting it dyno'd to check the numbers in case you're running lean.
Hello Mark, greetings from Paris. Thanks for the great vids. I have 2 questions need ur feedback based on ur experience..
1) is an R Nine T comfortable on long rides (+500km per day)?
2) Is it DIY friendly for all repairs (mechanical/electrical) ? Do you get OEM spares, diagnostic tools easily in open market or u r stuck with BMW only.
Appreciate your inputs please.🙏
Hi, mate. To answer your questions, I have done some 500km rides and it is very comfortable. And yes, it is very easy to work on. I buy OEM oil filters and crush washers from my local dealer but oils etc, I buy separately. Don't be scared to work on the bike yourself - there is a lot of info out there. All the best.
@@thatrninetguy that's encouraging
Thank you so much 😃👍
What does the valve do other than making the bike overheat and consume more fuel?
Damn fine question! If I were to guess, I'd say it was to quieten the bike at low revs.
At low RPMs, the valve partially closes to create backpressure. This aids in scavenging and prevents reversion, which improves low-end torque.
on the 2021 model it is 3 mm wider and in addition it is welded and for info the airbox has also changed it is not the same K&N as before
What purpose does the flapper value have? Is the a downside to removing it?
G'day, Al. I believe it's sole purpose is to make the bike quieter at idle. Removing it has more upsides than downsides in my opinion.
@@thatrninetguy the function of the exup valve is to give more torque at lower rpms. removing it does not give more sound, it only reduces the acceleration. So its very stupid to remove that valve.... but feel free to try it. And please test you bike while accelerating against a valve fitted model of the same mark and type.
@@jeroenkragten8342 I understand your point. I didn't notice any difference in torque at low rpm to be honest. With me, I'm after performance on track at higher revs. With a catless exhaust, removing any restrictions was the goal.
@@jeroenkragten8342 This is not an Exup valve. Those were fitted to some Yamahas R1/Fazer 1000 and sit directly in line of the headers and so resticts the flow at lower revs and gives more torque. This is a flapper valve which is completly different in purpose. It is there to get the bike through noise regulations, it is closed upto the point were they take the reading and then opens just past it and lets the gases flow unristicted. Other manufactures use the same trick only in various places in the system.
@@paulgarner8914 hi Paul
Your answer interest me.
i just bough a nine t pure from 2019 (so euro 4).
someone ask me if i’m ok to trade is Classic akrapovic from a 2021 with my pure Muffler.
i like the style and sound of the Classic euro 4 with the Akra, but was wondering if i would «loose » a great sound with the muffler of an euro 5 bike or the muffler are exactly the same ?
i heard the euro 5 sound came from another part. True ?
thanks
simon :)
Good one ! Any chance you would upgrade the steering damper and film the installation process 😀
Just need to find some money the wife doesn't know about first, mate.
@@thatrninetguy 😆👌
So easy even a guy with one arm can do it!
Haha - something like that!
Mate the 2021 model has the damn thing welded
Oh mate, that sucks.
Who is after srimans video...
Oh yes throw that away. On my 2016 R1200 GS LC this thing was stuck on every single service interval.
Yeah, I never had an issue with mine sticking but I have heard that its a problem with them.
Mine was stuck on too @@thatrninetguy
The hydraulic/ airflow calculation isn’t that simple, you won’t gain 15% less friction losses.
The replacement part is perfectly smooth. Eliminates the friction and turbulence compared to open flapper valve. Obviously 15% less flow doesn’t give 15% more horsepower
Cela n’est pas faisable sur une 2021 !!!!!!!!!!!!
Ah, désolé d'entendre ça.
soon you will have servo issue..
Hi, Hadi. Not sure what you mean. There are (and have been) no issues at all.