just installed mine with the performance exhaust and a k&n filter and what a difference

Love my HMF pipe on my yfz450r 😎

You can throw a tune in your quad that’s crazy

you guys should do a test on lrd or sparks exhaust on a kfx 400

Yea thanks for the video. I have an HMF exhaust on my 05 raptor 350.

whats the settings with a full hmf blackout exhaust and fuel customs intake?

What was the 5th and 6th setting?

Best sounding exhaust ever i really like my hmf competition slip on exhaust on my yfz450r it really louuud

@bradenneverman8442

3 жыл бұрын

Did u use a fuel optimizer cuz imma get a slip on HMF comp and wondered if I needed one

@mohammadalzaid2170

3 жыл бұрын

@@bradenneverman8442 No i was not running an optimizer but you don’t need one with the slip on An now i changed my exhaust to dasa exhaust in my opinion I recommend you to run a dasa full exhaust system because its just better

Dasa full set with tuner and intake is unbelievable

@danielreynoso8981

2 жыл бұрын

What type of tuner are you using?

@dodgecumminsguy9499

Жыл бұрын

What tuner???

Can you please make a video and explain everything on how to tune the exhaust with the hmf optimizer? I’m clueless on how you are supposed to know what settings to put it at.

@ATVonDemand

6 жыл бұрын

We no longer have this test unit. HIt up the guys at HMF directly they can help a bunch. They also have videos on how to tune the optimizer on KZread.

What year YFZ450r did you use

ok I see thanks my raptor is the 2013 mobile oh and I put an intake on to

Just installed my HMF competition and what difference in sound 👍

@Davido50

2 жыл бұрын

HMF facility near me in Ohio..great Co!

@KidKakarotto

Жыл бұрын

you bro did you just install everything fresh out the box or did you have to take it the shop or anything for tuning ?

It sounds like EFI is kind of a hassel

I just purchased a new 2016 yfz450r and watched your Budget MX racer test video and noticed that you used the PCV and GYTR slip on, I am looking to purchase a GYTR full exhaust, their billet adpater plate and high flow filter. I am wondering if the bog issue was better or worse with the HMF tuner and exhaust? It is actually sad how bad the stock bog is on an injected bike. I have always been a Honda guy but just a little tired of them selling 12 year old bikes for the same price today. I have ordered the AIS but I want to get my exhaust, intake, and tuner setup right the first time. Thank you!

@ATVonDemand

7 жыл бұрын

To get rid of the maximum amount of low-end hesitation you will need a modern map for the PCV. If you run a map tuned for the pre 2014 model it will not add sufficient fuel to the lower-end. You can extensively tune the map with a laptop computer, which we did not do. We found a map that got it close, but not quite perfect. Dan Lamey from DASA and the guys at Moto X Perts both have maps for the latest version of the YFZ450R that they say run quite good off the bottom. With its on-board tuning we had better luck getting rid of our YFZR's hesitation off idle with the HMF Fuel Optimizer although we had its low-end fuel capabilities maxed out. The range of the Optimizer's external adjust-ability is limited compared to that of the PCV with a laptop computer attached to it which will let you tune to the limits of your fuel injector. We plan on sending our Optimizer to Dobeck to have additional fuel added to its internal base map. Hope this helps.

Did you guys have any issues running that hmf set up with the stock ecu? I have a stock 2017 yfz and I'm wanting to do exhaust and aid upgrades but really don't want to spend $700 on a vortex unless I have to. Thanks.

@evegtrrz28

2 жыл бұрын

Yeah dude basically for us yfz450 guys it's not really worth it to get an exhaust unless you're ready to to cash out for a ecu , personally I'm waiting til I get a vortex and a dyno tune at a shop

I want to get a hmf performance exhaust but I don’t know how to do the optimizer will a dealer do it for me or no?

@ATVonDemand

5 жыл бұрын

What's some basic mechanical skills you should be able to handle it yourself. Or you can have the dealer do it.

DROOOOL

I have a 1985 ATC 250R, and I'm dying to know how the ATC 250R Project (version 2 - Race gas version) would compare to this YFZ 450R in terms of Dyno, Top speed and 1/8 mile drag race. I'd be very surprised if the ATC could be close on the track, but I'd really love to know how it would compare in terms of power, acceleration and top speed. How about a comparo?!?

@ATVonDemand

9 жыл бұрын

Bernard3rd Not really related, but something to ponder in the future. Maybe our Race Gas ATC250R VS Project TRX450R.

@Bernard3rd

9 жыл бұрын

ATVonDemand Yea, I'm just very curious about how the power of the ATC 250R would compare to a modern 450 4 stroke... Can it keep up in a straight line? What would you think?

@josecarlosrivera8497

4 жыл бұрын

Bernard3rd de las que el presidente se duerma con un día de

I have an 2014 yfz450r stock with airbox lid on, purchased the hmf slip-on and fuel programmer and am having bog when cracking the throttle. Any advice to make changes to settings? Or should I try to remove air box? Bike runs fine when heavy on the throttle but at low speed when cracking the throttle there is a lot of bog.

@ATVonDemand

6 жыл бұрын

Have a look at our Fuel Optimizer settings. These helped us quite a bit. kzread.info/dash/bejne/mW2Xp82xgK3MlJs.htmlm42s

@lilpap974

6 жыл бұрын

ATVonDemand you guys have a full exhaust etc so those settings would not work for me. I only have a slip on with the fuel programmer

@ATVonDemand

6 жыл бұрын

You are dealing with the same symptom we dealt with when tuning the full system. Our settings won't blow up your mrahine. If anything they might be a little rich.

Question is if I buy a 450 how often will I need to do the values

@gageh8924

5 жыл бұрын

Powermovemj a lot if you do racing

what nerf bars and front bumper are they running in this video?

@user-bh7uq4ur5e

7 жыл бұрын

justin cahoon HMF makes them.

What is the difference between the performance and competition exhaust?

@ATVonDemand

4 жыл бұрын

The The Competition series has a triangular core that HMF says enhances low-end and midrange power . It also comes with three different inserts allowing you to quiet down the exhaust or open it up for maximum power. You can also add a quiet insert to a performance series exhaust and the Performance Series also allows for a ton of different color options to match your ATV. We used a Performance Series Exhaust on our TRX250X project. Here is a link to a page on their site that explains the different series HMF offers. www.hmfracing.com/series

Maybe try a ecu flash it worked really good for me

@ATVonDemand

3 жыл бұрын

We have heard the same thing from other people. Might be the best solution for this machine.

@josemontanez2200

2 жыл бұрын

That’s the alba racing ecu?

I tried your setting with not so good of results, it seems to idle fine with almost no hesitation when I crack the throttle but when just crusing at around 1/4 throttle an then hit the gas it seems to fall on its face an then seems to bog quite bad at 3/4 to full throttle, so y'all have any advive in what to do?

@MrFuckshit97

8 жыл бұрын

also I have the same quad and set up as in this video

@ATVonDemand

8 жыл бұрын

+logan smith Surprising, We assume you have the airbox lid off? Try adding or removing fuel at those throttle positions and see what happens. We had good luck with our settings. It ran well.

regalenme unoooo 🙏

Do they make these for Yamaha raptor 350

@ATVonDemand

8 жыл бұрын

+Jake Sand HMF lists a Competition Series exhaust for the Warrior/Raptor 350 on their website www.hmfracing.com/. They also offer a Performance series with some very cool color options, jet kits, and filters. A pipe, jet kit, and drilling some holes in your air box lid would yield a nice gain in performance for your Warrior. A helpful hint from a former Warrior/Raptor 350 owner, install a Pro Design Pro Flow intake kit with a dual stage foam filter. the stock airbox/filter setup doesn't seal reliably.

will it work with a dasa pipe

@ATVonDemand

7 жыл бұрын

badwizard12 well it will probably work fine with a Dasa pipe, Dan from Dasa rewrites fuel Maps everytime Yamaha makes a slight change to the YFZ 450R engine. if you have a Dasa pipe already, your best bet may be to get a programmer from Dasa with their map already installed

I have a raptorR 700 I put the hmf full pipe on it with the stock insert that comes with a pipe and the optimizer but no aftermarket computer.I have the throttle settings 5- 6.5- 7.5 I want more what can I do

@ATVonDemand

8 жыл бұрын

+Frank Martino If your running the largest insert in the exhaust and your optimizer is well dialed, a Fuel Custom's intake is said to deliver another three horsepower www.fuelcustoms.com/. There's not another external bolt-on we're aware of that will make a significant difference. They have a money back guarantee as well. From there, you'r going to have to dig into the engine. Compression is pretty low on the Raptor, especially the pre-2015 models. Even the 2015's could still use premium pump gas, even with a big bump in compression. A higher compression piston wont change the power delivery, it will just boost power and torque across the current spread of power. It will help torque. A different cam can boost power across the board, or in a particular part of the RPM range.. A good motor builder can suggest the right piston and cam to suit your type of riding and fuel needs. From there, head porting and valve work will farther improve the power you've started building. Of-course, we haven''t even touched on big bore and stroker kits. Good luck and please tell us how it turns our. We will be doing a few very cool Raptor projects over the summer, so you might want to subscribe. Thanks for watching.

@frankmartino7411

8 жыл бұрын

Thanks again I will subscribe

I have a question ! I purchased a Full System Performance HMF exhaust also came with the Fuel Optimizer ! If i install the exhaust would have to have it tune first or can i just install everything without a tune ?

@ATVonDemand

Жыл бұрын

The HMF tuner comes pre programmed for the exhaust. We did some tuning with the on board. Tuning feature and made it even better than the tune that HMF sent it with. We did not use a dino we just tuned it seat of the pants. If you just install the tuner as it comes, your bike will run pretty well, but you will eliminate more of the low inhesitation With a little fine tuning. If you are looking for a turnkey setup PEP tuning can reflash your stock ECU for around the same price as an after market tuner. If you are planning on going with a high compression piston and a bigger cam, you might want to stick with an after market tuner But expect to do more tuning. If you're just going to do a pipe and maybe an intake you might want to just get your ECU reflashed. PEP tuning has a facebook page where you can find their phone number if you are interested. We also did a big three test with an exhaust comma fuel customs intake comma and a PEP stock ECU reflash If you would like to learn more about it. kzread.info/dash/bejne/qp15upWcqL3JnNY.html The vortex e c u is the ultimate tuning upgrade that will make the YFZ450R run the best. However comma it is a little more complicated. Having it tuned is the most difficult of all because of the software that tuners have to use. Tuners are a little harder to come by. And it is typically a little more expensive than having a tune done with an after market. Fuel tuner like the HMF or Dynojet. I know we threw a lot at you, so if you have any follow up questions, please don't hesitate to ask. We would rather help you spend your money, right? The HMF tuner might be the best setup for you.

@KidKakarotto

Жыл бұрын

@@ATVonDemand No problem all this information was Well needed ! So would it be okay to just install my hmf performance full exhaust system and fuel optimizer on my 2014 yfz450r ? I understand the fuel optimizer is already pre-programmed but if i install my full system exhaust would there be a problem

my dealer is making me a very good deal for a brand new '14 yfz 450R but after seeing this im thinking it twice. can i fix it just installing the fuel commander or i need the exhaust too?

@ATVonDemand

8 жыл бұрын

+Luis Antonio Salas We just wrapped up testing a 2016 YFZ450R and Raptor 700R. Both machines run nearly perfectly but both are lean right off idle. We notice a slight hesitation right off idle if we crack the throttle when were sitting still. Also, putting around under 5 miles an hour at idle, we had the engine flare out a couple of times when we stabbed the gas. We didn't have any problems with these machines riding normally. We are confident that adding a power commander, "with a well written fuel map" will make either machine run even better, but you don't "need" a fuel module to ride with your stock exhaust and airbox lid on. However, the YFZR or Raptor would benefit from a little more fuel right off idle. This is no different than when Motocross Action Magazine used to rejet carburetor equipped dirt bikes back in the day to dial them in stock. If you are going to buy a Power Commander for your stock 2014, buy one from a motor builder who tests with these machines constantly. Then you can get them to help you with your fuel map. People are running into a bigger bog issue with they add an exhaust to a newer model machine. Over the past three model years or so, manufacturers, not just Yamaha, have been forced to run their ATVs super lean off idle to meet more stringent emission standards. One issue people are running into, that we experienced with both our HMF Fuel Optimizer, and a Power Commander V from Yamaha's GYTR catalog, is that their maps were written for the pre-2014 model which was not at lean off the bottom. When you add a pipe and remove the airbox lid on a post 2014 model, old fuel maps just aren't rich enough at lower RPMs, and the real bogging begins. Motor building guru Dan Lamey from Dasa Racing tells us that each year of the YFZ450R requires a different fuel map to counteract Yamaha's tuning to meet emissions to run properly with a pipe and no airbox lid. The bottom line, If you want a YFZ450R, or a Raptor 700R feel free to purchase either one. If you are going to modify it ,or simply want to optimize its performance, a fuel module with a well written map will help. The wrong map, like the wrong jets in a carburetor wont run well. We will be releasing test videos of the 2016 YFZ450R and Raptor 700R in the coming couple of weeks. Later this Summer we will be doing a head to head track and trail comparison between the two machines. Subscribe to check them out. If you have any other questions, please don't hesitate to hit us back. You can message us on Facebook if you want to correspond directly. Now go buy a new quad, we wish we could.

@luisantoniosalas680

8 жыл бұрын

+ATVonDemand thanks so much for the info, im going for the '16 raptor. you guys have a very useful and good content, greetings from Lima-Peru

@ATVonDemand

8 жыл бұрын

+Luis Antonio Salas You will love the Raptor. It several of our riders favorite sport ATV in recent history. Tell us how you like it. We have heard from a friend that Peru is a very beautiful place.. Thanks for watching and for reaching out.

Yfz needs some Competition ....please ....we need affordable sport atvs...not over priced over sized utvs

What does 'YFZ' mean?

@Rizziculous

4 жыл бұрын

Nothing

Is there anyway to reset the programmer back to factory?

@ATVonDemand

5 жыл бұрын

We're not sure if there's a way to do a one-step reset but you can simply change the settings back to where they were in the beginning. If you're not sure what they were, call HMF and ask to talk their tech department.

@zachoryjamnik5605

5 жыл бұрын

Ok thanks I will try that

To test the sound there was a kfx lol can’t pass me

What is louder HMF or big gun evo r

@chrispotts2808

6 жыл бұрын

Raptor 4 Life hmf stand for holy mother fucking loud.

@GeneralShowHD

6 жыл бұрын

Curtis Sparks is better than both power wise and decible wise

I have a hmf exhaust on a yfz 450 it is stupid loud

@ATVonDemand

6 жыл бұрын

Moto_ bro_24 which one?

@mainebassin8176

6 жыл бұрын

ATVonDemand I’m not exactly sure it’s a 04 and the exhaust is blue it’s a full exhaust

@ATVonDemand

6 жыл бұрын

Moto_ bro_24 if he exhausts was from 2004 then it's probably the performance series. We haven't tried it back to back with a competition series but I'm guessing it may be a bit louder although I could be wrong. If you haven't repacked it in a while putting some fresh packing in might help quiet it down a bit and make it sound better.

@mainebassin8176

6 жыл бұрын

ATVonDemand yeah I like it loud though

👏👏Yamaha and HMF= best combo ever

How can you jet a fuel injected model??? Pls help

I'm gonna try your settings on my 2016 yfz450r, what should the other settings that are not listed be set at

@ATVonDemand

8 жыл бұрын

+John Pearson Our fuel settings are listed at 3:32. The settings not listed weren't changed.

@madkawi435

8 жыл бұрын

+ATVonDemand Ok, thank you for the reply. I have the setting you have in this video as mine now, still experiencing some hesitation in the 1/4 throttle range, it's much better than what I had it set as before which was base settings which was 4 for everything

@ATVonDemand

8 жыл бұрын

+John Pearson you may want to go to 7.5 or 8 on the green setting and see if that improves it further.

@Fox250R

8 жыл бұрын

+John Pearson Youll never get the hesitation to fully go away. Buy a Vortex!

@ATVonDemand

8 жыл бұрын

+Fox250R That's what one top motor builder is saying, However, Dasa, Moto X Perts, Fuel Customs Intakes, and several other respected motor builders we've spoken with all say that you can get rid of the hesitation with a properly tuned fuel map. According to Dan Lamey at Dasa,, "Each year of the YFZ450R requires a different fuel map to work properly." So unless you have the exact same year and exhaust a map was written for, it may not work properly. Dasa could sell us a Vortex just as easily as a less expensive Power Commander. They tell us the Vortex is not mandatory for achieving a smooth hesitation free power curve.

Where is this track at ?

@ATVonDemand

8 жыл бұрын

+Nathan Mcfall Its test rider Dave Trimble's private practice track. It is located in north west Kentucky.

I highly doubt they ever 100% got rid of the so called "Low end hesitation"

@ATVonDemand

9 жыл бұрын

Fox250R We were able to ride without consideration for throttle position entering corners. The machine no longer fell on its face right off idle and never flamed out unexpectedly. Maybe you are super sensitive pro rider who could detect something we didn't, but compared to stock and our other testing the problem was cured as far as we were concerned. It seems that the YFZR is very lean off the bottom, which no doubt helps with emissions but leaves it starving for fuel.

@sniping12

8 жыл бұрын

get a Vortex programmer and the bog goes completely away

@Fox250R

8 жыл бұрын

+Socialhazard Ya I figured that out! To bad these people didn't.

@sniping12

8 жыл бұрын

i honestly think HMF paid these guys to give a good review...

@Fox250R

8 жыл бұрын

+Socialhazard I was thinking the same thing, just didn't wanna say it lol!

Yamaha #1 - save sport quads! 🇺🇸

@ATVonDemand

2 жыл бұрын

Yes they need to be saved!

Lmao I run my raptor 700 with no insert