Lectron Carburetor on the 2003 Honda CR250R | This thing SCREAMS now!
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- เผยแพร่เมื่อ 5 ต.ค. 2024
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This is a 38mm Lectron carb.
www.lectronfuelsystems.com
Here is another video on the 2003 Honda CR250R project bike. It’s not that the stock Mikuni TMX carburetor was terrible, because it wasn’t. Scott did a fine job rebuilding it and the jetting wasn’t bad. Of course we could have spent some more time dialing it in, but many said it was not worth the time and that the stock carb was garbage. Since I didn’t want to spend valuable time jetting this bike more perfectly, asked Lectron if they wanted a piece of the action.
In full disclosure, this amazing Lectron Carb was donated to the project. I’m not hiding behind that. In order to do this to your Honda Project bike, it’s going to set you back $450 - $500 by the time you have it shipped to you. What you will end up with though is a bike that runs BANG ON, at any altitude. If that is important to you, then the 500 bucks you spend will be worth it. There are certainly other ways to get any bike to run cleanly, and some of then are cheaper. I haven’t seen a bike run any better than when they have a Lectron installed.
This one is no different. It screams with this 38 mm Lectron on here. Call up the guys at Lectron and the will hook you up with what you need.
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My cousin had a 2001 CR250 with that TMX carb and he switched out the center section to a leaner (I think #5) - and went with Pro Circuit jetting specs. The alitiude here in Central Ohio is around 800ft above sea level. This fixed everything with the Mikuni carb, it ran perfect after this!
You sold me on the Lectron. I struggled for a year trying to work out my jetting on my 16 Beta 300RR Race edition. Is get it good then go for a ride 4000-6000 feet higher and it was crap. Tried to jet in between and it wasn't great. Put the Lectron on, made one small metering rod adjustment and haven't touched it since. Ridden for a full year from St.george (3000 ft) to the top of skyline drive (10897 ft) 40-90+ degrees. Runs awesome. This carb and my Tubliss set up are by far the best mods I've tried.
Thanks Kyle
Quick tip for taking out/ intalling the carb on 02-07 model is just take off the whole subframe assembly it come off as one piece with the silencer still attached. Then just take out the bolt for the rear shock pull shock back and boom remove or install the carb what ever the case may be.
After words reattach the shock and when putting the subframe back on make sure the silencer slips on first then line up the airbox boot to the carb slip it on put the subframe bolts back in and your done. Should take no longer than 20 mins.
Don't throw the old carb away! I collect them, I literally have 2 two stroke exhausts, turbo and pistons as decorations in our living room!! I also have a carb tattoo on my wrist!
she must be married...
@@dylanhedges5634 ??
Your a woman who gets engines that it what he meant
he got it.
@@dylanhedges5634,
Exactly. I was going to ask her to marry me but then I read your reply and you did a better job.
V force 3 reeds 10oz flywheel weight and it will be a monster
Looking forward to the flywheel weight install and testing. I'm thinking of getting one on my cr250. Love the videos Kyle.
Looks like the next riding videos on this bike will be a month away, or more. I can't ride it yet and Tyler is busy for the next couple of weeks. We'll get some content on it, but please be patient.
Get one. If you ride trails you’ll like it
I run a Steahly 12oz on my 01 and am a rever from my MX 125 days but weight is nice when need to use the lower or mid RPM or just slow the spin up a hair into the power band to get more controllable traction since these don't have a adjustable power valve. I also use a milled cover but think would fit even the 14oz if have the leaky plastic cover you have to clean out every ride depending on the year of yours though or should come with a spacer gasket like a Rekluse does. Race Harescrambles and Enduro in Vet A and had on for many of years, I check torque once in a while but it stays put. Not a vast difference but noticeable and not really that spendy and be fine if just trail riding too, probably better if just trailing cause if you got it wound up all the time don't really notice.
I put a 10oz on my 04 cr250. It definitely helps in the slow stuff
I had a 12oz on a 03 KX250 and didn't like it. The engine doesn't have good low end power and all the fww did was keep the engine from revving into it's usable power range in a timely fashion. Tended to take longer to return to idle as well. Had a 15oz on my CR500. It seemed to help a little down low where the ignition system is suspect.
Lectron is great. But the issue with that mikuni is the needle jet. Not the needle, the needle get. It had an s9 in it which just made it way too fat from 1/4 to 3/4 throttle. Go to an s8 or s7 depending on the atmosphere in which you ride and it cleans right up.
I love that clarification you're "testing" it 😁😂 sounds like me when I say i am just going to ride up and down the streets and I am back 3 hours, 4 hours later... 😀
I have been running a Lectron on my 2002 CR250R since 2014. One of the best mods I could have done.
The carburetor is not junk. Honda put a number 9 dump tube in there Yamaha put a number 7 dumb tube in there which is smaller. That fixes the problem. To make the snappiness even better I put a 2007 Mikuni needle in my TMX carb which is a tapered needle. So about say 30 bucks fixes the whole problem. The 2004 to 2007 Mikuni carburetor is a 40 mm. That's the carburetor that I recommend to put on the bikes.
My 2001 cr had the tmx carb on it. That did the low end fix. Clip-on needle second top 390 Main Jet 45 pilot I'm at 500 ft.
I put the 2007 Mikuni 40 mm.
On my bike and wow it made it pull for bottom all the way to top end.
With no flat spots at all.
Hope this help someone
Your bike is
Very clean.
I like Lectron R&D. I bought one for my thumper and they gave me a needle that they said should work as an Australian used it on the same motor. I plugged it in and it worked really well. I used the same cable example you've given.
Lectron has always been my favorite carburetors.
Fast forward to 6:30 and prepare to laugh harder than ever in ur life. That's awesome bro much love!
Throw in some raw footage of Sam or Tyler riding the CR... So we can hear it run please.. Great job as always Man.
My 04 cr250 has similar upgrades and the 10oz flywheel weight definitely helps. I recently put in a Rekluse and it's unstoppable on single track.
Haha good on ya Kyle! Who doesn't ignore the doctor's orders and go for a sneaky ride or two before they are actually allowed to?
u aint ridin u ain't living
Take the top shock bolt out also real quick and pull the shock back and then you got alot more room to change the carb.
You get that 03 carb dialed in and you’ll be blown away how much faster it feels
Have ran lectrons on a lot if bikes, for back in the 90’s ran a 40mm on a cr500, bike was a legend. And that was with the ancient needle set screw. The newer 1/4 turn metering rad is so nice. Am running 46mm lectrons on a banshee drag bike on methonal. All that being said the tmx is a good carb, I prefer the later tmx, short body with the tps, i still run that carb on on my trx363 with an 04 ignition, killer bike
So would you recommend a lectron carb for a cr250? I’m having trouble with my bike. Twice I’ve been riding it and it just sticks wide open sending me off the back and the bike to who knows where, one of the times in a downed tree lol. Got a new throttle cable and happened again in the next ride 5 minutes in. When I give the bike throttle with it turned off, I can hear the spring in the slide catching but there is no visible problem on the slide or spring. Thinking about getting a lectron and a new throttle housing assuming that will wipe out all possibilities of it happening.
stock works fine if you know how to work/Jett them .
That’s crazy because I had this same bike and when I put the carb on it took actually took away a lot of the bottom
It sucks getting the carb out of all the Honda’s but that’s why I want a lectron... so I don’t have to get to the carb constantly to jet it
4:34, "Squozen". Love you, Kyle! Great video!
I had an 02 with FMF fatty , v-force 4 and jetted correctly . It was stupid fast ... so much fun
3 HOURS !! To put a carb and cable on ?? Maybe y'all should check out Camerin Neimela's channel he does this same mod on this same model bike in literally 20 minutes. That includes the disassembly. He does it start to finish in real time while the camera is rolling.
I just bought a lectron for my 03 cr 250 last night. I also have a 10 oz flywheel weight and 13:50t gearing and it runs great on the bottom, I cant wait to get my lectron installed. I tried doing the pwk swap but still wasn't impressed, I honestly bought that before I even heard of lectron but I finally decided to pull the trigger and buy one
How did it work on your bike? I have the same bike and did the pwk but it still sucks.
I have a Lectron on my 2002 CR 250 and absolutely Love it.
Another great video! What your doing for our sport and passion of dirt bikes doesn't go unoticed. Your video also helped push my decision of kicking my pwk 39 to the side for a trial run with the lectron on my 500AF. Thanks.
I ditched the Carb for a Lectron on my 2009 yz250. Best Mod besides the Flywheel Weight. Also installed a Boyesen Rad Valve just because it was due. Bike is way more responsive and the New valve put a lot more low end grunt.
Thank you so much for this vid I have an 05 cr250r and I’m about to order one of these Lectron carbs.
Been there, done that... My buddy owns a 2003 cr250r. We replaced the carb with the Keihin PWK 38 air striker. Much better throttle control and far more bottom end feel.
It's hard to say no when you throw a leg over a dirt bike.
Awesome! Can’t wait to see the test ride!
You're doing a great job staying relevant Kyle. Keep up the good work!
I would love to run a Lectron. Probably in a couple years. I ride from 3k all the way up to 8k feet in elevation depending on the season so i see a lot of fluctuation. In my videos you can tell when I am really high in elevation because i run a bit rich. I never change my jetting, either.
I really don't think the gearing on that bike you are building will need to be changed. If you go any lower you will have a top speed of 40mph which would suck. It's got plenty of power down low even with stock gearing. It definitely needs a kick stand and hand guards though.
I have a 2003 cr250r with that air striker carb that everyone says to get and a JD Jett kit to get me in the ball park and it runs perfect now, I always wanted to try the lectron but can’t spend the money when it’s running so good , I wish I could have one given to me to try
My 2001 always ran fantastic at all elevations (sea level -8,000ft) with stock carb. I never touched the jets, just moved the clip on the slide when riding real high elevations. Always started first kick too even after sitting with old gas for almost a year sometimes. I believe 2001 had a Kehien though. Other older Honda’s as well never had any issues with carb. I think it might have less to do with the carb itself and more to do with the fact they changed to case induction making the engine more particular. JMHO
I'm pretty sure the 01 ran the Keihin pj carb not the tmx
Honda changed to the Mikuni TMX carb in 2001 for the cr250r. I have a 2000 model and it has the Keihin.
cosmo copus they must have changed mid year then cause I’m pretty sure it was a kehien.
i roll up the subframe and airbox to memove the carb on mine, pretty easy and quick
I've been watching your videos for the past week and I like the way you break things down...I've just decided I want to get into dirtbike riding I kind of did it backwards gsxr than road glide now dirtbikes haven't figured which dirtbike to buy yet but love the info
Glad to have in coming into the sport!
I agree Kyle, my sons 03 kx 125 and it has a mikuni carb and I have jetted 3 ways to Sunday. It is junk. I’m going to buy a lectron carb when I get the money.
If it’s your first time, they carb is pretty hard to get off. I’ve taken my mikunitrash off a couple times now and it only takes 10 minutes start to finish.
i added a lectron to my 2001 cr125r and vforce reeds. runs good so far
8:24 Did I just hear Kyle call that bike the Screamin' Eagle? 😂
Sick mod ! If Scott doesn't want to buy it put it on eBay as a auction and see what it does let everyone get a crack at it ?
I put them on KSL.com when I don't already have a buyer. That way it goes to a local person that can pick up the bike and I don't need to ship it.
in hindsight...would it not of been easier to fit the new lectron carb by taking the shock off and going in through the back door, rather than take the whole subframe off?
Why does everyone take all that off just to get there stuff out?
I have Lectron carbs on my cr125 and cr250
How was the difference in carbs from stock to lectron?
Awesome Video, love the Lectron!
I've heard a well tuned tmx will actually hit harder than a pwk, it's just harder to keep it tuned. I dont know about this lectron though. It would be interesting to compare it to a well tuned tmx or pwk
Fastest carb removal and instal was like 10mins, I guess my bike just got plenty of room lol
CR250 with Lectron carb? Subscribed!
I wanna see a before n after comparison. I have a yz250x in the Uk and I’m seriously thinking of grabbing a lectron carb as I feel I’m not getting all the power in certain spots
Kyle, I just bought a 2002 CR250 smoker, the carb is junk so I am thinking about buying a lectron for it, I looked at your links but can’t figure out how to do it so you get the credit
Wonder how much hp it has id like to see a comparison of 250 2 strokes that would be cool but id say its hard to find a motorcycle dyno
Sick of tuning my 06 yz250f You basically have to take the whole bike apart to get the carb out. Been tuning it for years still doesn't run worth a damn. Really not smart to just ''put around'' without a helmet, did the same thing you did a few years ago, ending up breaking my neck just testing her out. Thank God I had my helmet on
I get the lectron carb for my 2004 cr250, but what happens with the tps? i need to do any other modification? it is going to affect the bike response?
nice video Kyle!! keep going
U just Zip tied up doesn't affect performance at all
Get in touch with Terry Varner after you get finished throwing parts at it. Send the cylinder and head to him if you want to experience the full potential of the 2003 cr250. I dare you. Lol
The TMX is too finicky and a PWK air Stryker overflows like crazy, even on mild inclines. Never tried a lectron yet.
Next time you need to pull the carb out do everything you did and pull the top shock bolt out.
@UncleRonnie69 would be so proud! #ScreaminEagle
what were the Jet sizes used in the old carb? main and pilot. Thanks!
I installed a lectron for a friend on a 2000 cr250 and I ended up taking off the shock. Installed mine on my yz125 in under an hour.
yeah, this one almost required taking the shock off the bike. It was close.
The trick is simply to remove the two upper subframe bolts so the airbox will tilt backward with the subframe. At least, this is how to do it on the CRF and it seems to be the exact same thing on this bike.
Even with doing that it was not enough. The clearance between the shock and the frame of the bike is too tight generally speaking.
Hey I have a 01 cr250r I just swap the tmx for a lectron today and I noticed out of the box my lectron was idling super high and felt lean, throttle popped on deceleration and surging when I go slower and yeah the lectron install on the cr250 was a bit difficult
(Wife grilling him). Ok mister....who started it for you..Huummmm??? What!! No brace, no gear, WHAT!! NO helmet?? OH Buddy, were going shopping this weekend, not a peep out of you either!! 😝
Why did Lectron design the carb with the choke on the opposite side to the keihn ? Surely it makes it difficult to engage the choke ?
It's on the same side.
Any chance you looked and seen what metering rod they put in it for ya.
Sad part is these old cr 250 smokers made more than 5 HP more than any stock modern 300 smoker.
do you know if they are universal? I'm thinking of picking one up on ksl and it's the same size, the 38mm, but I would imagine if they fit they would work right?
How does it run now compared to ktm 250
how much hp do you think this adds to a cr250r 2002-2007
I recently bought a 2002 KTM 300 exc (unfortunately haven't been able to ride it yet due to moving off to college) so idk how that bike will feel as is but would it be worth saving up for a lectron for that bike?
Have you ever tried a Smartcarb on any of your bikes ?
on my 05 cr i just unbolted the top of the shock for a bit more room
Can you make a video on how to tell if you need a top end rebuild
Lectron - been considering one of these for my ground up rebuild on my 01' yz250. Called and left 3 voice mails over 2 week period with Lectron and they have not responded. Not sure how busy they are but they need to step up with customer support. Still considering one
@@stevedorsey55
Thanks Steve, been at the online site several times. Just have a couple technical questions to ask factory rep before ordering
Sorry you have had that experience. They seem to answer every time I call.
Bill, sorry to hear this. We stay late to return voicemails same day, so I'm not sure how yours has gotten missed. Make sure you have the right number (830) 331-2235 and your voicemail is setup and not full in case you don't pickup when we return the call (this happens often).
I'm looking to buy a 2 stroke but my only concern is how loud it will be? How loud is a 2 stroke, any comparisons?
darren corbit decibel-wise it’s Probly not much different from a four stroke but the pitch is double. It really comes down to your preference.. do you want your bike to sound like an angry bee or a never- ending fart?
have you done a Lectron on a 4 stroke?
400-500..yea right. the lectron for my bike was right at 800 bucks. crf450x
So rad!
What oil fuel ratio are u running?
Amsoil Saber at 80:1
I run 40:1 Klotz castor & Sunoco Silver (100 octane) in my '96 CR500. Never had any issues.
C9/castor 927
@Keith Petersonlol, every bike is different and elevation plays big key. I personally run 50: 1 for Texas, different when I was in Colorado and Arizona.
@Keith Peterson the oil required changes when jetting changes for elevation
I use the lectron awesome carb 👌🏻👌🏻
Nice bike
I picked up an 03 CR 250 this weekend and I absolutely love it. I've been looking to get a PWK or a Lectron carb though. Can anyone give me more insight to either?
I'd recommend the Lectron. Might be biased though.
Lectron 😏
I have a lectron on my 03 and it’s been amazing haven’t had a single problem with it since the day I put it in. Crazy gas savings! I’m running c12 at 32:1 and man does it conserve gas!
I am still loving that cr250 I would hate to see it go. 😕
Eventually they all need to go. I'll ride it some before I get rid of it though.
@@DirtBikeChannel yeah FairPoint make sure you have fun with it and get lots of good video well you have it.👍
Is the suspension on this bike stock?
If you are going to sell that CR250 could you give us at least like a month morning up hey might be selling this in the next month give you more information just so I can get some cash together... please... I have only had an XR 250 (had to sell it) and I love riding my dad's two stroke yz250x my uncles 300 xcw.... i love the smell of 2 stroke in the morning
I could have had it done in the time it took you to say how long it takes to put it in.. sheesh.....
We need DBC stickers!!!
#7:53 ......... only two stroke guys speak this language👌❤️🍻
My old 2008 wr450 was a royal bitch to get to the carb
Thats because honda makes better 2 strokes than ktm. Just my opinion though. I really like honda’s power diversity
Dont tell my wife 🤣
That’s why i hate working on Honda’s. To get the carb out you gotta take the bike apart LOL
Yea i agree, but honestly it only takes about 15 minutes to get it the body panels, tank, subframe and set off
Any chance you can send me that carb my 03’ project didn’t come with a carb and don’t have money for a lectron
Yep aluminum frame Hondas suck to get carbs on and off the X 4 strokes are the worst.
Yeah, not a lot of room in there!
Hello can i have your Old Carburetor or 1 Lectron carb.😍😍😍🖖🖖🖖
I'll test ride the bike Kyle. Just hit me up :)
Japanese bike, strip the bike down to the frame before installing the carburettor 😂 disclaimer I'm only teasing but I have found that the KTMs I've had in the pass are very easy to access key areas of the bike without taking alot off of course that isn't always true with everything.
TMX carbs are complete garbage, even Mikuni's old round slides are built better.
Way to many plastic parts in the TMX I'm surprised that Honda would even consider
using one, they must have got a good deal from Mukuni.
Looking tan af in this one.