CR250: CARB SWAP - Mikuni TMX Vs. Keihin pwk38(MAKE YOUR CR 10 TIMES FASTER)
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- čas přidán 27. 02. 2018
- Hope yall enjoy! Let me know below what you think about the cr so far..
LINK TO HIGHGEARMX: / @high.gear.garage
-Roostmx - Auta a dopravní prostředky
haha this was my buddies bike about a year ago and its the first two stroke i ever rode and now i have an 01 cr 250 and i can say that he took very good care of that bike and he did alot to it just before he sold it. he never raced it or rode it hard so you got yourself a good one. a few things i remember him doing was putting a new rc valve in it, forks have been rebuilt, new plastics, new throttle cable, and a few other minor things. and maybe some motor work but over all its a great bike. lots of power.
Yeah I'm still running the tmx on my cr. It works but not perfect. It has the power and response but I think it would love a set of jets but from my research when you jet the tmx you get the problems. So I will definitely be looking for a kehein this season. Maybe a lectron. Keep the vids coming bro.
sounds like a different bike w that carb no more bog runs awsome good stuff.
Yeah i know right! I think it sounds so much more crisp👌🏼😍 lol thanks man!
All you guys that have the TMX carburetor on your bike the fixes the dump tube. Honda release that carburetor with a number 9 dump tube which has low in bog a little bit of mid-range to. Yamaha released the TMX carb with a number 7 dump tube. They didn't have problems. I have a 2001 CR it has this carburetor on it so I put the number 7 dumb tube in it a 390 main jet a 40 pilot in a 2007 Mikuni needle. So for 30 bucks fix this problem
I did the s7 swap on my 01 too and it made the biggest difference the only problem is my bike has way too much top end ? I’m at the stock pilot jet (35) main jet (420) 2nd clip position....and suggestions to bring back my mid and low range?
Check the jet block gasket in you're Mikuni it's a problem point and it you do replace it get it from JD Jetting, it's the best replacement hands down!
sounds great that's what i think idle is on point it doesn't need to be much higher maybe a hair
Yeah thats why i havent touched it
Nice looking carb!!!
Thanks!
Roostmx how is it pwk holding up in Moto ? Did you rejet it or did nothing just plug and go ? I bought 1 . Need your advice man . Thank in advance .
Some carbs need properly jetting..mikuni tmx or keihin pwk..pilot jet ..mainjet and slide needle
Good video man...✌
What needle clip position having the same problem my bike not bogging won’t really open up I have a cr250 the jetting fine
Hello! where can you buy the keihin pwk38 carb?? A link would be awesome! Lover youre videos!
Any idea what size your main jet and pilot jet are and what position is your needle jet. I have the same issues with the same bike
Do you know the know what jets were in it and wjat needle clip position is at? im about to order one myself because mine doing some weird revving after coming off of the throttle I think its lean and I think my tmx is clapped out
How come nobody’s just putting the s7 needle jet in the tmx so it will meter the fuel correct
I have a friend with a cr250 with a pwk39 and it is to much! I just purchased a 2002 cr250 and I think I'm going with the 38.
You can actually get the tmx 38 mikuni running great with a few upgrades done to it. Jd jet kit needle is a must. I've had a 03 with air striker and two 04 models with the stock tmx and id say once dialed in the tmx rips. It feels like the bike is instant throttle response and crisp, pulls and keeps pulling, vforce reeds and pro circuit platinum with 304 silencer combo never ends.
Dang that carb made it sound sooooo much better
Yeah i know right 👌🏼👌🏼
yeah i like bikes can idle slow as long as they have good response time and urs does
Yeah id say i got it pretty good where it is now. Im happy atleast 😃
Thats how i like em too
roostmx now you have to make a good riding vid!
Is a lectron worth the money? Vs a Keihin?
What are the jetting settings you run on the keihin?
Keihin pwk 35 air strike or mikuni tm 35 is better?
Which one is the best? TMX ?
A little secret for the 01 - 02 mikuni tmx is switching out the stock s-9 throttle tube jet to the S7 from a yz250
do you have a oem number from the yz250?
Do you know if it matters what year cr250 ?
You know that kei hin is a 35$ Chinese copy right? Real Keihins are made in Thailand, and yours had the hallmark marks of the Axxin Chinese copy. They work fine for most people. Not trying to diss you or anything, I thought it would be good for people to know though that these carb costs can be made to work ok.
I’m late but i have a Cr 125 and I made it the leanest on the carb and it will still bog out and thinking of getting the Kehin carb hoping it makes a different
so the result? ive a 125 cr 2006 with tmx carb i would change for a keihin pwk 38 airstriker dont know if its a good idea or not..
Hi. I have a cr 2001 and I would like to exchange my mikuni for a keihin of 38. Do they have the same dimensions? You did not have to adapt anything. Finally to carbure cost you ?. My motorcycle does not regulate and I already repaired it but it does not like how it was. Greetings, very good video
It was one of the easiest things to do. I actually had it gave to me by a buddy but he said he bought it for $50 on amazon or ebay. Was not an authentic keihin but it fixed the problem i was having and gave the bike a totally new feel so I honestly dont care, but all you have to do is take the throttle cable off the mikuni slide and put it on the keihin and then pop it back in the boots and connect gas, not sure if it will be same for tou but i didnt even have to adjust on it. Good luck, well worth it
@@roostmx Hi friend, what is the configuration I use in main jet and slow jet, I would like to buy one but I don't know if it works as I bought it
i would loved to buy a new carb for my cr but the 97-99 models had electronic slynode in the carb
Oh yeah my rm had that, i dont like them
yeah i love the slynode just a little difficult to work on em
You should try a lectron carb if you ever get the chance to. They're super nice carbs
I was going to if this didnt work
roostmx sounds good tho, I have a keihn on my KTM sx250 and Honda crf450r. They make some good carbs.
Yeah they do. Never had problems with the mikunis before until this cr
roostmx I had problems with the mikuni on my old 2004 cr125. I have heard good things about mikunis, I just haven't had the best experiences with them haha
Same
I have done this on two cr250s 2004 model and in a kx125 2004 . The result was night and day in all three bikes. Jetting is easy if someone knows.
Clean your original carb, check, or change your power valve system, and change you reed valves. The stock carb was great on that bike when it was new. You have other problems and are putting a temporary band-aid on it.
I checked power valve and everything, new reeds, good compression, no leaks. All good, the owner before me said he never had it right even when he owned it
Ok. Thanks for answering. I am on your side. Keep riding the 2 stroke stuff. It's just fun. Great video for beginner's, and others, to have ideas for fixing older style bikes. Keep the vids coming.
Thanks man im trying to make this bike better and better the longer i own it
Smaller Air bleed /needle jet S7 or S8 is the fix for the tmx
1st
Ya dude I still think theirs something wrong with the power valve that bike should be picking you up on that road expesly when your giving it that much gas
Oh i can make it, im trying to keep it low because id rather not crash on the road 😬😬 but i guess man its fine for now
roostmx ok sounds realy good tho
@RoostMX......hey man , I just saw this video and wanted to fill you in on something you may not know about. I have a modified 2017 Husky TC 125 , in which I couldn't get the crappy Mikuni tuned right. It was super picky on temps and so forth. I got the PWK 38 from JD Jetting , along with their jet kit , BUT.....I also picked up the STIC mod metering block from Harris performance. That block seriously made my bike feel like going from a stock motor , to a fully ported motor. It is a little spendy ( $295.00 ) but worth every penny! I also just picked up my new 2018 TC 250 , which will be getting that exact same thing for. And as far as the PWK goes , I have one also on my 06' RM250 ( no STIC mod yet...but maybe? ) and I hardly ever have to tune that thing. The Mikuni changes jetting every 15 freakin' degree's outside! It's why I tossed it!
Bike songs great 👍
Thanks dude 👌🏼👌🏼
Your mikuni was not jetted right i have a tmx on my 02 cr 125 and it screams you just have put a leaner setted carb
riccardo barlocco what did u jet it to I have 02 cr125 ? 30 pilot 390 main
Yo roost 🤙🤙
Whatsupp
if you wanna be a big baller could always buy a lectron no jets and you only need to clean it once a year if that
buddy i have honda xl185. Which one do you preffer ,? Mikuni tm28 or keihin pwk28?
Cool classic I had XL250 many years ago.
Both are great.
If you want the smoothest running one the TM28 will be slightly better since the slide is better suited for small 4 stroke engines. Peak performance I think is exactly the same if they are configured well. Make sure to get jet kits as well.
It takes some time to tune a carb, but it is easy if you do it systematically and take your time.
I have a 02 cr250 and have same problem with it not running right where did you get that keihin carburetor where could I get 1 and how much is it or am I better off getting at electron
The one i had was actually a replica my buddy gave me to try! He got it off of ebay or amazon... it may have came from china but not sure. I know they sell for 50-60 replica and if they are expensive most likely genuine but you could try a replica because it took 15 minutes but helped A TON.. i was getting so frustrated with that pos mikuni
So you think if I get a replica I can bolt it up and just minor adjustments and I'll be fine if that's true that would be sweet for only $60
I've got a 04 cr250 and I've rebuilt the thing from the ground up... decked cylinder, Eric Gorr porting.. the whole nine. From my experience the PWK is a better carb, but the Mikuni honestly isn't bad. I'll tell ya right now that pull you had at 3:47 sounded lean as all hell. I just cant stand hearing people say "it's hard to tune" when they haven't swapped a single jet.
aaron King you connected the tps?
I've ran the bike with both TPS connected and disconnected, with tps connected the bike runs a "3d" ignition map, disconnecting it forces the bike to revert to a 2d map. Some people say they have experienced more crisp throttle response with it unplugged.... I've tried both and I leave mine plugged in... not because it's better... but because I noticed no difference between the two at all.
Atleast yours will start.. lol ... 😒
roostmx are you having trouble with that pwk now or is the tmx giving you hell still? If you're gonna run the tmx for a while, take it apart and clean it thoroughly an clean your air filter/box/boot well, my current settings are
FLOAT LEVEL: 7.5 mm (0.30 in)
AIR SCREW: 1-1/2 turns out
SLOW JET: #32.5
MAIN JET: #410
JET NEEDLE: 6CHY12-82
JET NEEDLE CLIP POSITION: 2nd position
TPS plugged in
With Pro circuit platinum pipe and R304
aaron King You Have Jetting Setting PWK? Thank you
who the best ?
Dam highgear looking ashame 🤔😔
Well we been planning to ride for 2 months now and when we finally get to meet up he sunk his bike
Did you buy that carb off of eBay in the price range from 20 to 60 dollars
One of my buddies gave it to me to see if it made a difference, it did
That PWK is china, not genuine. I prefer the PWK over the TMX
Mikuni and keihin. Two difference type of carb. Mikunin:good in a short track, fast at early rpm. Keihin:good at medium-longtrack, breath of engine looks like more so long. Ty
Its better but not 100%.
It not crisp up high, when you snap it like you are in the vid the front wheel should not be on the ground infact it should be standing on its tail or spinning.
Etiher need to jet or you need a top end, check for air leaks.
I was making it stay down, but ill check it out man
Keep the tmx learn to jet it and also a lot of people don’t know this but change the stock s9 nozzle jet to a s7 ,huge difference
Kept the tmx but sold the bike and it went with it
Big difference much better man
Right
Did you use the jets that came in it? And if you did what are they
I did but not sure what size they were, i disnt even check
Just wondering because I found the same one on eBay for 40 dollars and I thought it was a knock off because of how cheap it was
Did you bought that carb? Its Chinese version
Did that carb fit right? I’m thinking about doing to swap to mine
Yes once i got the mikuni out, took about 5 minutes to get the slide on the throttle cable, and get the carb in.. super easy
Is that the air Striker $50 carburetor that you found on eBay? That's a Chinese carburetor buddy
Haha yeah i know but hey she helped alot and ran 100 times better so i left it, i had a buddy give it to me because it didn’t fit his bike, he said it was like $50 so I figured it was
@@roostmx
That carburetor will never react like the TMX carb that you have in your garage still. Change the dump tube from the number 9 stock too a number 7
I don't know what needle you have but put your clip on the top. Watch my video on the Mikuni carburetor and I give you the part number for the needle I run.
Its a 2 stroke now👌
Lol
Mikuni is better????
Roost your the man !!
Appreciate it man !!
That really fixed it. 👌
Yeah it did👌🏼👌🏼
Sounds great!!
Thanks man
That thing sounds alot better
Ok NOW it sounds good lol
Right lol
Btw i subbed,love the channel man! keep it up!
2004 Cr 250R have the TPS in them correct ?
that's not an air striker.
What boots do you wear. ?
Fox comp 5’s
roostmx really, I got the same pair didn’t know they made them in that colour. I love ur gear set it looks great keep up the good videos. I think you should do more riding videos tho where you just go on an adventure somewhere idk just an idea.
Yeah i wish i too man, I will when it gets warmer outside and have more time to ride
Get a lectron over them two carbs
id make sure thats a genuiune carb check out" jennies garage
" he does a video about ebay carbs
Yeah i know, jennies garage? Ive been watching it and i seen that video but idc if it’s genuine if it makes it run that much better lmao
OGAstra haha I thought the same thing when I seen the sticker. But hey I’m glad to see it works well cause my cheap ass is always trying to save money so if I’m not willing to spend 100$+ I will get the knock off.
yeah.. its almost impossible to find jets for the fake carbs.
id run the carb to.. you get good throttle response with the air strikers
Well i got this one for 50$ (buying from highgear) so i call that a win for me lol
Don't stop perfecting it, and don't stop cleaning it up. Keep riding hard grasshopper.
Lol is that a reference, compliment or rude? Lol
Ah, you have not heard of the old saying. It is what a martial arts teacher would call his student. You are in constant training to ride a bike better. It was just a joke. I'm glad you keep trying to better the bike and your riding.
Yeah now i understand lol like “keep trying young grasshopper” lol but thanks man follow along(:
I have a pwk on my 2001 CR and it likes to ripp
Oh yeah theyll eat
I’m doing this for my 01 what is the jetting in your 01? Getting the TMX tuned is a real bitch and I’m over it
What clutch perch do you have on the cr?
Vince perches with sunline breakaway levers
roostmx thanks! If you ever brake those levers, look at the torc1 levers. Theye cheap af and high quality.
Alright i will man thanks for telling me!
roostmx np!
just fyi that is just the pwk 38, not the pwk 38 as
Oh okay thanks man
Keihin did make an airstryker carb that came stock on late model 1990 CRs and early 2000’s but that one isn’t. It’s an eBay pwk.
Mikuni never beat Keihin carbs
I mustve got a bad one then
Never had a problem on my 06
that is a fake Keihin... no water marks, etc. Could always try rejetting a carb too. Anyway, if ya like the Chinese Keihin, good deal then.
I mean yeah I expected that with the 50$ price lmao! But honestly with how much it changed it i could care less what it is, anyways i could sell the mikuni pretty easy for $100 on ebay because theirs nothing wrong with it just needs jetted right
roostmx yeah, hard to argue with the way it ran! Just keep in mind that quality and longevity may be an issue. Genuine Keihin jets are supposed to work from what I hear.
Yeah i will try to get all genuine but I’ll probably end up selling the bike before anything else needs to be messes with
roostmx There is nothing with these fake carbies,however the needle they supply is Horse shit!Buy a Gas Gas needle or a NEDJ needle.Thank me later :)
Ive already sold the bike(: thanks for the tip though man.. thanks for watching too!
hello, which jets are worth?
What?
what number jet?
slow jet? main jet?
In the keihin.. not sure i just threw it on lmao! Sorry man
roostmx where did he buy a carburetor keihin?
What year is your bike
The cr was a 03
roostmx ok i got a 01 kx250 but I want that new year front fender and number plate .. so what year u us
Get a 2016 cycra stadium plate and 2016 polisport or acerbis front fender, I personally like the flo green on the kx’s
First
g_uk 420 no I was first look at my comment
I don't no 2.0 nope the other guy was first
That carb made a big difference
Yeah i know right i was surprised with how big of a difference it was lol
roostmx just keep up the good work
i watched a 3 min ad for you xD
Bro my cr I just got came with a TMX. Absolutely garbage.. I swear to God mid day out riding headed back to the truck grabbed a screw driver and threw the carb into the woods. Went back home pulled the kehin pwk off of a 98 250sx slapped it on and went out again DIFFERENT BIKE ALL TOGETHER main jet needs leaned out a tad bit but other than that carb is phenomenal.
😂😂😂😂
Your bike sounds like the bottom end is about to go
All 250’s sound like that
roostmx no......
They all have a clacking sound to it if you listen to almost any 250 2 stroke
Well first off, the TMX is obviously not dialed in for shit, so sounds and runs like shit lmao. You throw on the dialed in carb ofcourse itll run better, but yea the PWK is the better swap.
Fake carb but if it works it works lol
Fake pwk 38 dude