Rebuilding a 4 Stroke Carburetor

[@CameronNiemela]

Two stroke or four stroke? What do you ride?

[@Mennow208]

Cameron Niemela Two Stroke

[@mrvolts9262]

I have a klx300r ('99) and a 95 rmx 250, best of both worlds!

[@henrihaaramo2767]

husqvarna cr 125 2t

[@jonathanbrandt3137]

Two stroke! Forever two stroke

[@krockerboysoutdoors7258]

I ride a 2009 ttr 125 and I am building a 1996 cr 125

[@simonlopez3554]

I’ve been looking for a video like this for weeks! Disassembling a carb for the first time, so the detail helps.

[@TWist-sh4uc]

We use the ultrasonic cleaner for cleaning the precleaned carburator housing and the jets. The small holes get free after that treatment and blowing out. The carburator works like new and is easy to adjust. Perhaps you try. Thank you for the nice vids.

[@randycantu1]

This video came in handy tonight. My boys and I are rebuilding the carbs on our 06 and 07 Yamaha yz450f dirtbikes. These are the same carbs we have. Thank you again...we subscribe and enjoy your videos!

[@grollehar5918]

Finnaly a good youtuber WHO show you How to rebuild dirtbike stuff btw Im working on a aprillia 125cc 2 stroke so thanks for giving some tips How to rebuild btw you are the best (sorry for bad english in from Finland so)

[@apexnight872]

Cameron your vids just get better and better every time it’s very much appreciated how much details you put in to your vids and very interesting

[@Folsy36]

This is my job for today, thought I check YT first for a refresher and struck gold. Cheers Cam

[@CMP_Offroad]

I recently just purchased a 2002 Yamaha Wr426F it started once and I haven’t been able to start it I’ve never owned a dirt bike or motorcycle before or have any experience with bikes so this was kinda scary for me but I was able to rebuild it and have it running in less than an hour your video was very informative thank you so much !

[@pzimmermanphoto]

You saved me many additional headaches by mentioning the slide and plate. Just made the same mistake. Instead of breaking the whole carb down again I flipped the plate and my problem was solved!

[@4tomclark]

I gotta take mine out and flip that plate. Seems weird that it goes in that way

[@warcog]

Hey Cameron! I'm back again, to learn some more from you, and another one of your fantastic videos. THANK YOU! This time, we're just preparing to do our final assembly on a new CRF250X Supermoto for my son this weekend! Our bike is fully disassembled right now and we're just about finished cleaning the frame; using your wash/scrub method and the Eagle mag wheel cleaner you turned us on to! We'll be taking our bike's carb apart, rebuilding it, and installing a jet kit-so this video is going to be a BIG HELP in that process. As always, your videos are fun, clear, smart, well-produced and easy to follow. Even us old motorcycle dogs can learn new tricks from you! Well done, again. Take care, Bro.

[@dank479]

You reinstalled the accelerator pump diaphragm in the wrong direction. Great video

[@Jordan.Ballard]

I noticed this as well. Thanks for the comment - Flipped mine before putting it back in the bike - Cameron, this video is priceless~ Thanks

[@juliusmorgan2292]

OOF

[@Marvelfunfaqs]

Omg, super awesome video! Such valuable content, it's crazy! With this, i now have to confidence to rip apart my crf Carbs... This video will break 1 million views one day. Thanks a million Cameron!!!

[@HB-it8ng]

ISLAND RIDERS - DIRT BIKE GARAGE legit ive allways been worried to do it now im not too!

[@DB-yb6jr]

Wish you had put this video out a couple years ago, I spent a couple days trying to figure out why I put on the plate on the slide upside down. Thanks for the great content.

[@BigSlushi4k]

I’m gonna be taking on this project soon!! Just bought my first dirt bike

[@adilsonhubner8990]

Cameron seu video me salvou ,estava com uma crf-250 r com problemas de lenta e estava invertida a peça do pistonete do acelerador.

[@jaysonsterling3530]

5 minutes in and I’m already learning sooo much! Thank you!!

[@CameronNiemela]

Thanks for watching man!

[@dirtbikechannel700]

you do such amzing cleaning job, wish i had all those resources to keep my bike looking brand new!

[@adamm5015]

The info on the slide was great. Did you replace the 3 main gaskets and 2 o-rings or did you reuse them. Thanks.

[@LuisLopez-wt1yv]

It really helped me, thank you so much i have the same problem with the plates upper side down and all the tricks congratulations from venezuela

[@brycetokarski6661]

Thank u so much you just saved me from spending a lot of money I love u so much I had idle hang on my wr250f I tried everything to fix it and It was the throttle body slide plate it was upside down😂 thank u again😁👌

[@ryans2118]

Thanks for the input/hard work/dedication. Figured out where i screwed up by thinking while watching ur vid.

[@dantsy6397]

I have gas pouring out of those 2 little holes from the intake side. Any ideas? You can see it pretty good at 9:12 Great vid btw

[@Mental-Mess]

Hopefully I get some advice. I rebuild the whole carb and cleaned it for my yz450f. Before it would leak from the carb over flow tube (the one at the bottom of the float bowl) constantly when I had the gas turned on. And still does this even after a full rebuild. Any advice? Thank you

[@opichocal]

Mine did the same thing. Did you figure out the problem?

[@mkushin]

Seriously, your videos have become priceless to me. I'm amazed that this content is something I can get for free to help me work on my CRF450X. Thank you!

[@Maicowerk]

How to rebuild a 4 stroke carb: Step 1. Take the Carb off the bike. Step 2. Drain all the gas out of it. Step 3. Throw it into the garbage. Step 4. Get a 2 stroke carb. Step 5. Put it on a 2 stroke bike.

[@EVILFRANCHISE3]

Opferman Motors Dirtbiking haha agreed

[@brycetokarski6661]

Opferman Motors Dirtbiking 2 stroke are trash

[@USMC-Sniper-0137]

ken geerts TRUE DAT!!!! But we can use them to pollute the air around us and kill all the beneficial bugs!! Bahahahahahahahahaha Two cycle twat wads LOL!!!!!!!

[@MemeRider]

YES LOOLLLOL

[@peterrettinger8426]

Your tutorial vids are the best on net . Keep up the good work

[@jasonheizer9457]

Dude you saved me a lot of trouble. Had my slide upside down and couldn’t figure it out. Thanks and keep up the good videos!

[@tomatoknuckles]

Brilliant as always cam. Would be nice to see you do another one of these explaning the mid body gasket on the fcr it's always overlooked and is a major cause of issues on these carbs 👍

[@gabewilliams5993]

Hey, before your big 100,000- 200,000 subscriber break, please don’t change and become useless and too caught up in fame like Braydon Price or 3D Machines, don’t get me wrong, I love both, but they’re too mainstream and you’re more down to earth and relatable, good luck, thanks for quality content!

[@Marvelfunfaqs]

Gabe's Crazy Adventures - hahahahaha

[@Marvelfunfaqs]

Yeah Cam, don't sell out man.... or we will hunt you down and....... jk😅

[@mikekellendonk9983]

Awesome vid, took mine apart forgot where one screw went but figured it out as soon as I watched this. Cheers and thanks

[@johnmignano7872]

Awesome result Cameron...would you know if CRF450 carburettor can be used as upgrade for XR600R?

[@moneymike4017]

Why didnt you remove and clean the float needle assembly there is a plastic filter under there that has to be clean to

[@richardtschida2321]

When the fuel screw is initially removed is it me or is the washer and oring is out of sequence? It looks like it's metal washer, o ring then spring. Thanks Cameron.

[@MrAddison79]

Is there an o ring for the hot start and or choke?

[@ottovp]

great video but why you didn't check the fuel pump gap? and an oring mod would be awesome too!

[@tste8361]

Do you not have to rotate your throttle pulley and spring one full rotation counter clockwise before you put it back in?

[@tste8361]

Is that a yes or no?

[@pzmiami]

Thanks. My bike had this hidden problem and now after watching this video I was able to fix it. 🤙

[@USMC-Sniper-0137]

I don't think my eyes were deceiving me when I saw you remove that fuel mixture screw and the metal flat washer was outside of the little rubber o-ring 1:51 . Videos always shows to install the spring, the metal washer and then the o-ring. Did I see that correctly?

[@jmg6484]

Amazing video, meticulous way of rebuilt, great explainations, wonderfull details on video, and always filmed with joy and happiness, it's so fine, Thanks Cameron !

[@ianmurray4919]

Great video! How much torque are you supposed to apply to the choke when installing? Thank you ahead of time

[@ottovp]

at 1:51you have washer, oring (badly squashed) and spring at 11:32 you have oring, washer and spring => correct cheers

[@Fixin2Ride-Official-]

I just noticed that you put the AP Diaphragm back in wrong.... 1:59 is when you took it out and 10:57 is when you reinstalled it... I'm sure you figured that out later though. This video helped me tear down my first FCR in 2020.

[@robertwoods2505]

Do you remember what bike that is off? I noticed it has a screw and washer to retain the float valve seat like mine from an '03 CRF450R. I thought the CRF FCRs had a pressed on seat. Great job Cam!

[@snapfly7]

What kind of grease should be used for the pulley bearings?

[@travthedad305]

On those fcr carburetors which direction does the O-ring on the slide go

[@humbertomachado3798]

Olá essa arruela de nilon qli do eixo, da guilhotina, fica encostada na parede do carburador ou para a parte de dentro?

[@frankiemarchese2978]

My plate is upside down like you stated but runs pretty good, should i still flip it?

[@Dixie_Normus]

How far did you screw in the idle adjustment screw?

[@ryanmoore6795]

I've noticed in some of your previous videos that you use an electric pressure washer, cleaning up frames for example, is there a certain brand you would recommend over others for your typical rider that isn't in the market for a gas-powered washer? Great content as well! Awesome to see another Washington State rider/mechanic!!

[@CameronNiemela]

Thanks! I use a Ryobi 1800 PSI one from Home Depot

[@robertclarke1825]

The Excelerator pump you have installed your spring facing out I installed my spring facing in have I done it wrong?

[@thomassylvestro9041]

Another excellent video. All of your stuff is so detailed and explained. I really feel like I could do it with your help and this video. Thank you Is there any special instruction for the idol screw,or just screw it in until it stops. Also any experience with the 32mm CRF150RB cabs. I have a 2020 that is so hard to get right.

[@alfredvillegas2176]

Helped a lot saved me money thanks man great explaining

[@mischif5341]

fuel screw came out with the washer on top on o-ring is it meant to be this way

[@AREA51_ATVSXS_PERFOMANCE]

amazing video thank you so much for the high quality and precession

[@rudysaldivar4228]

Is this same carb used on a Yamaha WRF450? Looks just like it.

[@kevinanderson8118]

Thanks for the tip in the slide, an easy mistake to make!

[@RufleezMX]

It would be perfect if you had also made a video of how the hoses of that carburetor are connected to which places they are directed.

[@timwarner5645]

Took mine apart and rebuilt it but Mine is now hard starting. Do you think I may have the slide backwards.

[@USMC-Sniper-0137]

When installing them cute transparent color matching rubber 1/4" vent hoses that appear to be too small to fit over your NIPPLES, just heat up a coffee cup with at least 1/4 full of water in it for about 1 minute and a half in the microwave to a near boil ( that is tuff rubber). Next while next to your carb and hoses, drop one end of the hose into the water and let sit for at least 60 seconds. Once you pull it out, swing the end quickly to fling the water out of the hose( if you use an air compressor to blow it out, the hose probably cooled too much). Now the hose should be soft enough to easily fit over your carb vent nipples!! Everything was so nice and tight and I didn't have clamps so I didn't use any. Take your time and have patience. If you don't have a microwave or a stove, use your campfire tins LOL...Then neon green ones on my KX250F look awesome!!..... Enjoy.

[@nolanryan1075]

Do you have a vid on doing crank seals on two smoker

[@jordanbrower9402]

I ride a Crf450x it’s got a ton of power! Aye I really enjoy your videos man keep up the good work!

[@toskurim9495]

Why did you put the rubber band of the accelerating pump upside down?

[@donovanlucibello379]

Where to begin . . . thanks for saving my bacon, bro - very clear video. Any trouble with the throttle position sensor at the end? Thanks!

[@lobotomyy]

*whats the difference between a 4 and 2 stroke carb, and does it matter if i use one on the other*

[@snapfly7]

Do you know where I can buy a replacement accelerator pump nozzle for this carb?

[@israeltoledo5755]

Really loved the video. Am in process of rebuilding a flat cr carburetor on a yamaha yfz 450 raptor. Thanks.

[@mxcollin95]

Love your videos! Please never stop making ‘em. 🤙

[@robertwoods2505]

I know this is a few years old now but it was still a good watch. Great job. BTW, for FCR's the R&D Flex Jet air screw is a very good mod for $30.

[@ibxtiger6920]

your brain worth 10 billion dollars for me.Anyone agree?

[@USMC-Sniper-0137]

It's not the genius part of the equation. It's the ability to follow instructions!! AND you are only as good as the tool collection you possess! It's the lack of tools that will make a job seem and look so difficult.

[@Cetrifuga1945]

Sei sempre il n1

[@genaminin]

Would be nice to know what each parts do:)

[@andrewpardo301]

How about the mid body gaskets? Those tend to go bad with ethanol.

[@Altcoin.gangster]

I really like the informational video I am a tech and have been thinking about making a channel myself recording all the bikes I work on...your fuel screw assembly was in wrong though I'm not sure if it was someone else or you that out it in there last but the washer and o-ring go in the reverse order it goes screw washer o-ring in that order on every single car wether it be an air screw or fuel screw it doesn't change

[@geebopbaluba1591]

Can you help me out with the TPS sensor adjustment. Gary in Millsap Tx.

[@mastmec]

why didn't you pull the needle seat, does that one not have an o-ring and screen to clean ?

[@cjsmith6689]

It does, i was going to comment the same thing. If that o-ring is bad, the carb will over flow.

[@bryce099]

Cameron all my wheels on my throttle slide fall off. Is this bad?

[@robertwoods2505]

I should have asked what year the CRF450r was?

[@leewilkinson3862]

Hiya my overflow on carburetor is pissing out petrol last few times I've rode the bike. The person I bought it off said u need to take it apart and clean it! I need some help What would u recommend thanks

[@MrCalifornia1234]

I ride a crf450r and now use stabil which seems to keep my carb clear after I had to pull it apart because of bad gas.

[@pierresuiveng1332]

Why don't you disassemble the part between the bottom float and the two manifolds ? I've done it and the joint in there was in a really bad shape.

[@johnrichardson8048]

Pretty sure the orifice that my pilot fuel goes into is blocked, screwing it in and out makes no difference to my idle speed, I was hoping to see you take apart that bottom section above the float bowl, with torx screws in it.

[@pinkpuffin187]

Did you ever fix this issue? I think you are referring to the mid body. There is not a lot of info around on replacing the mid body gaskets. I have a hanging idle and I think the mid body is the issue.

[@Chalz108]

I just went through the carb on my 1981 yamaha xt200 today and God damn is it simple compared to the 450r carb

[@danshealthylifestyle8443]

Thanks for all the tips I’m working on a 07 kx450f I lost the throttle box cover Allen bult got any spare on the web site?

[@d-roktheman9247]

Does anyone know where i can get a new float pin holder it feel out of the bike and i cant find it anywhere?

[@silvrfox84]

What was your base line setting for the idle screw? I bought a bike that the carb had been messed with, and someone backed the idle screw all the way off the throttle pulley.

[@CameronNiemela]

Idle screw needs to be adjusted while the bike is running. There really is no baseline for it.

[@silvrfox84]

Cameron Niemela thanks. Keep up the great Vids man!😁

[@kendrickpreston456]

What type of cleaner do you use for the carb to get the grime off...also thx for being so detailed and precise with ur vids trying to fix up my 04 rmz250 ur stuff has helped a lot for sure...please respond with any tips or tricks to get my bike running again👍🏼 best of luck I’ll be subscribing too!!

[@laberdude]

its very importand to check the freaking O-Ring between the upper and lower Carb. removing the torx-screws and u will get it. old carbs often suffering from the bad gas nowadays and getting into the tiny holes

[@anthonyquantuman730]

Brilliantly clear pics of reassembly.. However, you need to edit with some text during the accelerator pump diaphragm install "Its installed the wrong way, the nipple should be uppermost"

[@JuanjeteMS]

Hi Cameron. I've just bought a used FCR and I've realized there is too much play in the throttle assembly, do you think I need to replace the wheels??

[@CameronNiemela]

Play in the throttle at the handlebar or at the pulley?

[@JuanjeteMS]

Cameron Niemela play at the sliding plate, I think the carb body has a little Grove where the wheels roll, I'm not sure if it's possible to fix it by adding material to the wheels.

[@timwarner5645]

how can I adjust the accelerator pump

[@sebastienplouffe2238]

Does the this carb is same as Yz250F 2012?

[@nope9803]

Sebastien Plouffe yes and 09 yz450f. Just finished rebuilding mine

[@jamesgamboa6542]

I have a 07 yfz 450 that when I'm riding stays at high idle unit I put it in gear and let the clutch out, do you have any ideas on what it might be

[@juannnn8074]

Buenas tardes muy buenos tus videos. Le hago una pregunta en mi moto tengo el mismo carburador y esta acelerada que puede ser? Gracias

[@Quintanater]

What did you scrub it with

[@snkombo2586]

what is that thing that you drop your parts in? i have never understand what is it haha(:

[@CameronNiemela]

It is a tank that has a mixture of water and degreaser

[@danjim7056]

This looks like a mid body carb no? The mid body gaskets are fairly common to be bad

[@creepermode01]

Question: is it the same carb on the CRF250R? It looks the same

[@CameronNiemela]

Yes, it is very similar

[@pmfilmsUK]

Absolutely brilliant

[@rovincowboy]

Very nice job! I am currently doing this on my 2009 KTM 450 XCF and this is most helpful. Thanks! Cecil D. New Mexico

[@hairylarry7458]

What does the diaphragm do??