Suzuki DR-Z400 3x3 Mod (High Definition)

While helpful, I was disappointed in the quality of the videos covering this popular mod for the Suzuki DR-Z400, so I decided I'd make a higher resolution video for future tinkerers like myself.
The bike picked up significant mid-range power with this mod. Stock I couldn't even clutch up second gear and do a wheelie and now it comes right up.

[@markalan4026]

Doing this mod, along with a full performance exhaust and jet kit, really gave my Drz400 a good boost in power. The power increase is very noticeable, and the throttle response is much better now too. I would definitely recommend this mod. Just keep in mind, you can expect the need for more frequent oil changes with the larger intake hole on airbox.

[@Mihalyofficial]

What does that have to do with it?

[@jake2772]

Just bought a used DRZ it had the 3x3 mod done to it I just noticed. No clue if it’s been rejetted though. Any idea easiest way to find that out? The previous owner didn’t do it so he doesn’t know. And it’s completely stock besides that. Seems to ride fine too

[@markalan4026]

@@jake2772Is the exhaust popping/back firing at all when letting off the throttle and decelerating? You will need to remove the carburetor and check what size jets you currently have installed. I couldn't remember what the stock jet sizes were, but I looked it up for you. Stock jetting for Mikuni BSR carburetor found on DRZ400 S/SM models Main Jet: 142.5 Air Jet: 62.5 Pilot Jet: 22.5

[@jake2772]

@@markalan4026 awesome thank you and no popping/ back firing on decel. Dumb question the numbers you provided will those be written on anything showing that?

[@markalan4026]

@@jake2772 Not a problem, glad to help. The numbers will be written on the individual brass jets themselves, inside the carburetor. You will need to remove the carburetor float bowl in order to access the jets. On the DRZ400 the carburetor is really crammed in there tight, it can be frustrating removing it from the bike if you haven't done it before, so take your time with it. There are several how to videos here on KZbin, I would recommend watching a couple and following along.

[@chrispbacon3042]

A simple video with good camera angles and no stupid bloody music like so many others do. Thankyou very enjoyable.

[@thumpersquid]

No techno/dance music and just silence is refreshing.

[@Guachale]

Bloody!!!!!! It'll be Blooooooody!!!!

[@vynleshmynle7372]

Wish he would get tripod. Drives me nuts watching somebody use one hand to work on something.

[@Grumpy-Pants]

@@vynleshmynle7372 He uses 2 hands a lot in this video. Did you even watch it before commenting?

[@tangobravo4634]

Yes, and no bloody music which is so unnecessary. 👍

[@recpro7847]

I don't even have a DRZ an I'm watching. Thanks

[@tabiApo41013]

me too.. :)

[@NorthwoodsNomad]

I don’t have either... yet lol 😂 I’m thinking about buying one though , there seems to be a lot of modifications necessary to get the bike up to speed . I sure wish Suzuki would just just give it fuel injection. And a 6 speed transmission, and a diet to get the weight down.

[@radwanghazimoumeh]

hahaha same here!!

[@AJV4L2007]

JollyBruin 4570 they can’t it would never pass modern day emissions and the new one would be less powerful

[@fabz325]

You guys need one. No regrets

[@makarlock]

Mechanic ASMR

[@motobeard2781]

I just bought a DRZ with this mod already done. Now I can comfortably sleep knowing how much work I won't have to do. Thanks

[@epicwhaleburger]

About to buy my first bike on friday and am doing the same thing here lmao

[@WhiteGravey]

now you just have to sleep wondering if the mod was actually done or not...

[@dillonthompson9656]

@@WhiteGravey lol

[@PracticalTacticalSheepDog]

@@WhiteGravey 😂 that's fucked up

[@luisguzman3848]

when i bought mine the guy had already done it but i don't think he rejetted what are some symptoms of not rejetting?

[@AKJeeper]

Good video. The only thing I can suggest to you, or anyone else working on Japanese bikes - get a good set of JIS screwdrivers. The fasteners on our bikes aren't Phillips like they might seem at first glance, but rather JIS (Japanese Industrial Standard). This was something an old motorcycle mechanic taught me 20 years ago, and I quit stripping screws on these bikes since then.

[@CubanRider]

Thanks man, I wasn't aware of JIS, you taught me something new today.

[@petereastwood7868]

AKJeeper Absolutely! I was going to make the same comment. I bought some great Vessel screwdrivers that have a hex section so that you can use a wrench on them if the screws are tight ( www.vesseltools.com/handtools/screwdrivers/megadora/930-kit-p123-detail). They work like a charm. Using Phillips screwdrivers on JIS fasteners or on Pozidrive (found on Brit bikes) just chews up the heads and ruins your screwdriver as well, although Philips screwdrivers are junk to begin with, so no real loss there.

[@recpro7847]

Had a tech teach me the same thing. Many years of unnecessary struggle.

[@robraver]

good point!

[@NorthwoodsNomad]

Peter Eastwood thank you for sharing that link , I just ordered the 8 piece ‘motorcycle repair kit’ $96 but excellent quality tools and worth every penny just to save yourself the headaches and frustration alone by using the proper tools .

[@bigbilly29]

This man knows how to work a set of vise grips!

[@Yazabdul]

Yesterday I followed your steps in this video on my 2018 Suzuki DRZ400sm and yes it was worth it 100%

[@claddagh1000]

Running good?

[@darthorpheus]

Why?

[@MrSmith-hd8od]

Such a pleasure to watch this! Superb camera focus, great angles, no hideous music, no inane mumbling or eye-rolling “vlogger” type voice over. Good heavens this was soul soothing, hahaha!

[@catmanflorida8545]

THANK YOU !!! This was a great vid. Also thank AJ Keeper for the info about the JIS phillips drivers, been a mechanic all my life (62) and didnt know that, will order a set tonight.

[@kaitlynallen4746]

5:22 a little note on the float bowl screws (stripped in the video), they strip because people are using philips screwdrivers on them when they are actually JIS screws (Japanese industrial standard). They are similar to philips but ever so slightly different. It doesn't help that they are put on TIGHT when stock and they are made of the softest metal known to mankind.... Anyway, I was able to get mine off without stripping when applying a ton of downward pressure and using a JIS screw driver.

[@MickH60]

Yes yes and yes again, I'm blown away by the amount of people that don't know this... Anyone undoing screws on a Japanese bike, or any bike with phillips style screws should have a set of JIS screwdrivers, I've been using them since the early 1980's, NEVER stripped a screw head and taken out plenty of already damaged ones too.....

[@goaheadmakeourdayscooterpe9644]

Pro Cycle sells these carb kits for the 400 and 650 and with air box mod and exhaust can get you a real 10% hp increase and make them run so much better thru the whole range.

[@willyworld7686]

I just completed the mod. Everything was pretty much the way you showed it except getting the carb back in and seating it in the airbox hose was difficult. I finally got it in after coating the housing hose with some oil. Well worth it though. That first test ride was a wheelie fest.

[@randleet]

This is a brilliantly done how-to! Thanks very much!

[@CubanRider]

Glad I was able to help.

[@vebez5993]

Your bike is oddly pristine

[@fireinthewhole]

Best DRZ 3x3/rejet vid on the webz.

[@SquadronROE1]

Holy cow this video is incredible, thanks for using a HD camera and tripod - so much easier to watch. I just had to clean out a clogged jet on my carb and did everything the absolute hardest way. I would have saved so much headache if I would have simply loosened the subframe not tried to pull off that entire rubbery air box thing. That nearly killed me.

[@iCodeForBananas]

I think this is the best tutorial out there for this.

[@nicholash8021]

A stock 400cc dual-sport can't pop a wheelie in 2nd gear? What?! I know it's not a direct comparison (4-stroke vs. 2-stroke), but my 1980 RM 465 could easily pop a wheelie in 4th gear, and it had only 4 gears so that 4th gear was pretty tall. Good video and I'm glad to know there is some option to give this thing some balls.

[@79gsonethousand]

Nice vid! Clear visual instructions/walk threw. Well done! There needs to be more vids out there like this.

[@GoneRidingPartsCom]

Great video ! we work on DRZ's around 80% of them have the 3x3 mod.. More air more fuel more power.

[@darthorpheus]

Reliability? More dirt into the engine, more engine wear?

[@David-my2tv]

​@@darthorpheus if there's a good filter then no dirt will get inside the engine. Maybe the filter will get dirtier sooner because of this but just maybe

[@artiexr222]

I have watched and watched again your excellent video for tips on removing the carb and the jetting,my (UK) SM is 15yrs old and the carb has never been apart now its off the bike those float bowl screws are giving me nightmares lol. Cheers for posting helped me greatly.

[@silverslvr5185]

My first mod was to remove that horrid strap across the seat.

[@fayewinters7460]

One of the best break down how to videos, not just bikes, but period, short, not talk, to the point, love the bullet proof drz400(with manual cam tensioner)... Not a 450 but the hop on start and reliability part beats a 450.

[@michalczajkowski8798]

I would like to know what and why you exacly doing. It would be nice to have subtitles atleast with some explaination

[@iSim0641]

It's a common mod for drz 400 that's why he didnt provide a description. Stock drz don't breathe well because of too much airbox restriction. The 3x3 mod is piercing the airbox To increase air flow. In addition To that you need increase fuel intake so that is why he removes the carburator to modify jets

[@randycallow3736]

I see that you edited out the facial expressions and things you blurted out right before using the vice grips to nibble out the tight screw..you are excellent and a professional..good video.keep it up

[@joelchils]

Those bottom bowl bolts can be a pain ... I like the technique you used I stripped one and used an easy out lol

[@emperor91108]

This worked so good. A carpet knife cut like it was butter

[@alejandroatilano]

Gracias por el vídeo. Muy bueno.

[@diegoaespitia]

thanks man you helped me out so much cause i could see what ur doing very clear. So many times people skip steps or do something in a bad angle and i just have no clue what they did

[@roybatty2030]

Great video, thanks. The stock against works ok with this mod. Not convinced it’s necessary to upgrade it. I wonder why Suzuki strangle the bike with the small air intake snorkel in the first place…

[@cmichalak09]

Great video man! Looking at doing this mod with the mrd exhaust very soon. Lots of videos out there but seeing it done step by step will help alot more. And thanks to some of the replies for little tips and tricks.

[@modameta]

Brilliant video! I was fascinated till the very end! Precise, simple, clean... Thank you.

[@MurrayEstes]

Excellent Video :) KB Honolulu, Hawaii but miss the 70s in San Diego with my Hodaka Super Rat ....

[@boomattack02]

To compensate the extra air intake you should get a less restrictive exhaust

[@menom7]

Wow,AWESOME VIDEO Cuban Rider!!! I learned MORE in this "how-to" video,than I have,watching OTHER "how-to" videos,where most of it,is the moron TALKING through the entire thing,and muddying up the screen with "text" every minute or so,explaining what their doing (even though the guy is verbally SAYING IT at the same time!!!) But YOURS was GENIUS!!! As it was all "action" in showing precisely what it was You were doing,instead of listening to it!!! Awesome job man,and glad the mods made a difference!!! ;)

[@smiththers2]

im glad mine already had this done when i bought it, for a 20 year old bike its amazing!

[@stormperformance]

Thank you for doing this video! Planning to do it over the winter but as you said others videos were so/ so. Cheers!

[@eschrader]

Finally good res video of this

[@SWTrailsAndWheels]

Very nice! Luciano and I are both looking at getting DRZ400s for dualsporting. He’s on a KLR now and I’m on the Multi, both on TKC80S but limited compared to a lighter bike. Trails we take that are stressful on the big bikes are a joy on my CRF230F, hoping the DRZ lets us get to the trails with ease and handle the off-road better than the big Adventure bikes.

[@CubanRider]

That's awesome, I've been seeing your pictures on FB, definitely jealous and something I'd like to do in the future. The DRZ is great due to its lightness and extensive aftermarket, they can be found fairly cheap too. I sold mine earlier this year and miss it for sure.

[@MegaSneetch]

Thanks for the video, definitely helped with my install.

[@kaloyankoychev952]

Helped a lot. Much apreciated.

[@ntme9]

10:15 ..wait.. now the ecu is covering half the hole. Why does it need to be specificly 3x3 again? I think I would test it out before I cut a hole. Maybe just remove the snorkle?

[@dereckrodriguez9688]

Great video brother! how long did it take you to do this mod? and how skilled of a mechanic are you 1-5 5 being the best ?? lmaooo that way I know it might take my ass twice as much time

[@UnleadedApe]

Great video thanks. Very neat way of cutting the airbox too. I take it wheelies are way easier! Looking forward to doing mine!

[@jremeee2011]

Your video helped tremendously thanks so much! 💪🏻💪🏻

[@PhilConn]

What happens if you forget to put the little spring in the slide?

[@giovannimitreski8478]

What if u just do the 3x3 and remove the baffle is it same jetting as if you have a slip on

[@roymichael851]

Even though this is a bit old, it helped me greatly, good clear video, thanks.!!!

[@NicChap]

Nicely filmed Mate! Precise and simple. Too bad I don't have one to play with...

[@CubanRider]

Thanks Nic!

[@kmcq3576]

Excellent!!!! Awesome job, thank you!

[@nickvandernet]

This is great, but I still have no idea "what" the 3x3 mod is, nor "why" I'd want to do it?

[@coachsteely99]

Can I just open the air box? Will it help while I get more courage for the jet kit later?

[@CubanRider]

You might pick up a couple of horsepower, but it will throw off the air/fuel ratio and make the bike run lean which is not healthy in the long term.

[@WhiteGravey]

how long did it take to force the carb back in? 2-3 weeks?

[@CbassGSX400S]

Surely you would just buy the FCR39 carb instead of going through all this hassle?

[@clarkpitts5393]

I did 3x3 on my '19 400s. Starts without the choke and has an increase in lows and mids . I Lost 6 mpg. Now I get 54mpg. Overall : Great cheap mod.

[@pmor5992]

was something broke or in need of fixing?

[@justoneperson]

Does anyone know why everyone is using a heat gun? What about a mototool like Dremal?

[@justoneperson]

Nolan Worthley makes sense. Thanks for the reply. Heat gun it is for me.

[@MurrayEstes]

DRZ 400S Year 2005 and still runs great with this mod....However, Hodaka's rule :))))))

[@300zxdriver]

Spartan-Surfer Hodaka ? 125 two stroke ?

[@elchino7900]

very, very good video, thanks! Cuban Rider

[@jasonfararooei5722]

Fantastic video.

[@nsxproperties560]

Did you upgrade the exhaust too with this mod or just 3x3 and jet kit?

[@speedy_blondy]

i dont understand .. what was that for ? can someone explain more ?

[@everythingmotorsport]

Better than asmr

[@CubanRider]

Ha! I enjoy watching these as well.

[@mrsmel269]

great work Cuban we dot to do this to our 22. hope your out chasing today and #livetoride

[@rickkrenzelok5518]

New to the Drz community here. Which jet kit do you recommend after doing this mod?

[@jwiereng]

Is there substantial benefit to 3x3 mod with FCR39?

[@feetincheseighths]

Does everyone take paint off the frame while removing the carburetor. Is it that tight all the time. what would be the longer route avoiding that?

[@a.j.deboer1444]

Do i need an aftermarket exhaust if I'm doing the 3x3 mod? I bought a JD Jetkit for my new DRZ 400s to get more power out of it. Just wondering if re jetting will help without modifying the airbox or having an aftermarket exhaust. Great video man!

[@davidwatson7329]

Good video my mate but what were you drilling at the end of carb mod..? Did you just wind it out as instructions say ?

[@Igotknobblies]

would this be worth doing to my CCM404DS which uses the DRZ engine albeit, high lift cam, higher compression head and keihin FCR carb? already rated 40bhp... would I get any increase?

[@tienofthesouth]

DRZ400 ASMR!

[@thedingo4real]

if you dont mind what jet kit did you purchase looking to do this same mod to mine as well

[@smitty16784]

Cuban Rider, great video best I've seen!! Question what was the tape for towards the end or did I miss something.

[@louiewatson9389]

A Dremel tool would be good for the air box mod

[@fabianjosemenendez9570]

Te felicito por el trabajo. Esta entrando a la Argentina este modelo. Veremos a fin de año que costo tendra. Aqui los precios de las motocicletas estan por las nubes. Saludos

[@CubanRider]

Gracias Fabián, saludos.

[@josephschneider4376]

Rejetting carbs and expanding air box,right?

[@MickH60]

New needle too....

[@nicolasnicolas3362]

Can anywone help me .. why my drz400 it dos't have power.. is like no power just maximum speed 45 mph an it dose 't phul like it should. I clean the carb ...change spark plug...

[@awbonfanti]

if the DR-Z i'm going to buy has the keihin 39 already (DRZ S), is so important this mod to have an easy-good-wheelies-bike? it increase more the high-end power or the low-end torque? thanks

[@brettmccafferty7510]

It looks like you left the rubber boot in the carburetor off on one side. Why?

[@AdvBrewery]

Super awesome video. Thanks for sharing

[@chadf4i]

is that the ecu under the seat? doesnt it kind of eliminate some of the effect of the 3x3 by it being mounted back over the hole?

[@BluuSkyz]

Que Bola amigo! Mi padre es de Mantazas Cuba! Your DRZ is so clean, mine looks strait clapped lol. How did you like the 3x3 mod?

[@CubanRider]

Gracias hermano. Eso fue cuando la DRZ estaba nueva. La termine vendiendo a finales del verano pasado ya con más de 4500 millas. El 3x3 funciona perfecto, le da un poco mas de torque que era lo que estaba buscando para levantar gomas. Saludos!

[@CyberGasty]

Great vid. Thanks a million

[@grizzyization]

What happens if you jet the carb but don’t do the air box mod? I recently sent my drz in for its first service (600 miles) and while it was there I told them to jet the carb and put a new full yoshi exhaust system on the bike. I don’t know if they did the air box mod and my bike seems to be running a little strange since they did the mods. While riding around 60 mph the bike just shut off and sometimes when I twist the throttle I feel I don’t get an immediate response. Would the airbox feed the system enough air to make it run correctly if the airbox mod wasn’t done after they put the jet kit in? Any info would help. Thanks in advance!

[@nikolasgrigoriadis6978]

so question why not just put an open airflow filter instead of putting a hole in the air box of th bike?

[@anthonyallred1609]

So im just getting into motorcycles and I plan on getting the drz so what did he just do?

[@verbalwidget7267]

Great video nice camera work and how to. Thank you

[@kevinnashskitchen3517]

Looks like you did everything but add a longer air/fuel adjusting screw 👍 nice

[@paulairola7041]

Never fails! Every new bike needs mods?

[@user-wl8zw9bx7r]

I have this motorcycle but no spare part in my country how I can get it??

[@farreltucker7466]

Must water and muck proof around side cover fender area so as to not waste your motor.

[@micha4176]

Do you know maybe an impact on fuel consumption? Is it smth like 20% increase?

[@Bruneval66]

Great video, but would have been good to have got a bit of commentary as you pulled / disconnected various hoses and cables off, and dismantled the carb, for the first timer bike mechanics like myself.

[@trido1986]

What should i go with 155 or 160 main jet if i have a slip on exhaust?

[@user-pe9jl2dy1i]

Do i have to do the jetting if i put yoshirma rs2 exhaust and if so do you think dealerships mechanic would do it thanks

[@nomasker1360]

Which DRZ is this for ? I have an E . Different carb right ?

[@badwheelies]

You need to get a nice hand impact for the float bowl screws

[@MickH60]

Not at all, het JIS screwdrivers, Phillips head drivers chew the screws up, The screws are Japanese Industry Standard, hence JIS, use a JIS screwdriver, you can thank me later.....

[@NK-dl2nc]

Reminded me of one of tbose space movies wigh all the silent scenes... Do like the grey colour sceme on the DRZ.

[@BacBaPhi007]

😍