2021 YZ250F FMF 4.1 INSTALL *FULL SYSTEM*

FMF 4.1 Titanium Exhaust system install on my 2021 Yamaha YZ250F. Enjoy the video!

[@jackmac7777]

4:32 stock 16:30 fmf

[@jordanott6115]

I fricken luv you

[@Noahonda450]

I was about to do that😂

[@maxs4986]

Sounds Good! I was surprised on how well it sounded before the fmf

[@paulbarnett2083]

Pretty sick she sounds a little more crispy with the FMF not a big difference but you can definitely tell sound sweet

[@troyholland3436]

Honestly the stock exhaust sounded pretty good

[@BicBoiDyl]

Awesome video man! I put just the slip on, on my 2024 250f. It made it the tiniest bit quieter on the top which is nice. It also made it a tiny bit deeper which I also liked

[@epews5229]

Sounds good. Picking up a mint 2020 yz250f this weekend and definitely getting this exhaust

[@huntermooney9080]

Love your vids man Keep it up✊

[@Gavin_Horrocks]

Nice video, I’m planning on buying a 2022 yz250f soon

[@carlosmedrano3549]

Nice where I'm at at 2022 is useless 😒

[@leeluchette6049]

Just for looks, or did you feel the bike needed more power for your ability?

[@Goodluck-hd5gp]

They help the bike run cooler as well keep that in mind. Runs cleaner as well.

[@gregmackinnon3541]

Great job on the install

[@christiansoto5065]

Bro ur bike is sick!!

[@Stuntnsinda80s]

I think the exhaust companies should start putting the exhaust plugs in with each order. Makes it easier for us to wash our bikes so we don't get water in them from washing the bikes. What's everyone's thoughts?🤔

[@steve-o7398]

I know this is old but i just bought this exhaust for my 23 yz250f and it came with the plug! FMF must be doing this now.

[@ethanyoung4036]

First!! Lovveeee your content, keep it up

[@rehmanvirani8415]

Yessirrrr been waiting for this video

[@kanemartin7291]

When I do pipes I just take off the right hand side engine mount and you can easily get in there no worries at all

[@motosporttouring]

If you’re done with that exhaust I’ll buy it. These are impossible to get right now !

[@eletrjc7073]

You could’ve held the parts in your hand and weighed yourself then subtract whatever weight you are without the parts.

[@riodebian7787]

Amazing sound fmf

[@eredlin615]

4:30 stock 16:30 fmf

[@merf3291]

Could you be kind enough to link me to the correct exhaust gasket?

[@damonforrest1570]

All you need to do is hold that stuff and stand on the scale simple as that

[@maxboykin2969]

where did you get the copper gasket?

[@yourlocalyodog_9513]

are you going to tune the bike or just leave the ecu stock

[@bikelifewithalex120]

I run 820 on my bike Kool, I was wondering why you left the silencer plug on for the install.

[@wanted_450r]

did you take the spark arrestor out yourself or was there an option when you bought it to have it without

[@JadensDrip]

When you buy it the spark arrestor comes uninstalled

[@RCBashin90]

Sounds good!! Where did you buy the ramp?

[@matthewtoes6433]

Why people don't use a gasket sealant in-between them two pipes And a bit on the silencer with the mid pipe it's something I would do

[@CC-fn4rj]

Almost the same honestly a little deeper with the fmf is it worth the $$$ ???

[@DirtyMotoX]

Cool video, will the same exhaust work on my 2022 yz250f?

[@dcouture79]

Don’t you need to do some computer programming for the full system?

[@Your.dad..should.had.pulledout]

I cant be the only one in class right now

[@michaelharrington6962]

You could have just used a wrench as well if you can’t get those swivels

[@ezr4h814]

Keep it up man :)

[@danielcastelow7523]

Do you just run 93 in your or like a race mix in it

[@hristodonchev5911]

Hi, I am interested in buying the factory muffler you have changed. Do you still have it and if you do what is your price? Thank you

[@addisoncarroll1780]

I just put one on my 23 and I’m confused on if the muffler inside the slip on is supposed to twist back and forth. I bought it new but that doesn’t seem normal to me. Like when I put my wash plug inside I can literally twist the the thing inside back and forth. If that makes sense

[@apexrtx1000]

That is the spark areestor that you feel moving. It is just held there by a ring at the end of the exhaust that keeps it from falling out but it doesnt keep it feom spinning around.

[@diogocardoso4444]

That sound

[@raymondalo2057]

nice. is it ok without the clamps bet header A and header b? thanks. will install mine in the next few days. hope to get a reply. cheers.

[@akmoto_]

I didn’t use any clamps and I’m not having any issues 👍🏼

[@raymondalo2057]

@@akmoto_ i forgot about the springs. the clamps are for the oem heatshields i suppose. thanks. appreciate it.

[@Sir_Wilo]

My dream bike😅

[@doomfortyfirst1332]

I put full fmf exhaust on my 2018 yz 250f and it runs bad. Bike won’t even stay in the air when I pick it up. Thoughts?

[@akmoto_]

Did it run fine before? A simple exhaust swap shouldn’t have that dramatic of an affect on how the motor runs

[@user-xw4qp6ct5u]

can you feel a little increase in power?

[@SethGarrett]

Did you notice any power difference?

[@stefano658]

Ma perché questa mania di sostituire sempre e comunque il silenziatore? Io ho la stessa moto e con il silenziatore originale va benissimo.

[@breezy6709]

i have the same bike and i cant find this exaust

[@franknewell]

Did you have to tune the ECU or can you run that system with our stock ECU? I have the same year bike.

[@akmoto_]

Stock ECU

[@franknewell]

What map do you prefer with this system?

[@fishingwithchris1357]

17:45

[@ezraharris3248]

where did you get the exhaust?

[@CheetoDink]

What’s up with the weird little dent on both pipes at 8:18 is that made factory like that?

[@akmoto_]

Yes, to clear chassis

[@michaellauria510]

Will a 2022 yz250f exhaust fit a 2022 yz250fx?

[@Brand0953]

Did you ever find this out? I can’t find a answer anywhere

[@michaellauria510]

@@Brand0953 yes, the fx and f is the same exact bike shape wise through 19’ and 22’ I believe

[@didickcheeseburger]

did you get a discount on that silencer since it has a dent in it?

[@akmoto_]

It’s made like that to clear the chassis

[@chaseermeling8329]

Need a new front sprocket

[@d.barnes4625]

😉👍 =🔥🔥🔥

[@jumarepairiphonekuantan8694]

where can i buy fmf 2021

[@hendynv]

Is that dent supposed to be there? :36

[@850romper5]

Why you doing your topend i just bought a new 2022 yz250fx just wondering

[@akmoto_]

Hit 50 hours, mainly preventative maintenance. Also burning a tad bit of oil, no performance loss though.

[@jamesking4225]

Is the power gain worth 1300 bucks

[@akmoto_]

No

[@jamesking4225]

@@akmoto_ thanks

[@FedericoCrozzolo]

i have same bike and same exhaust :)

[@jeremiahbidall4720]

Where did you find the heat shield?

[@akmoto_]

They sell them on the FMF website. Part # 040691

[@jeremiahbidall4720]

@@akmoto_ Cheers man 👍🏽

[@ididntseeaamvwiththissongs3472]

Are you selling this bike?

[@sheaburns3713]

Is it just me or is the left axel block on wrong

[@akmoto_]

It’s on right it just looks weird cause of where the marks are on the block is different than most bikes

[@jpesicka999]

Def throatier

[@bentboyz7212]

Did u have to tune

[@akmoto_]

No

[@2fiddykilla821]

where did u buy it from?

[@akmoto_]

RMATVMC, a bit hard to find right now though

[@2fiddykilla821]

@@akmoto_ thanks and yea ik i had to have my local dealer back order it

[@ginoton-loy6298]

Motorsport have it in stock. Go to the link

[@pedrofernando176]

👍🤙

[@rclmxshift]

Add anti seize next time.