2 Stroke Engine Full Rebuild - DID I WAIT TOO LONG? 

I got the freight train package for my 125x. Love it.

Is anybody else amazed by how much fun and power can come out of such a little engine? Pretty sick 🤙🏻

I'm a big fan of yamaha. Their motors have always been extremely reliable. The lectron by itself really wakes up a lot of bikes throughout the powerband and i'm really surprised at how well that entire kit wakes up that 125. The lectron, paired with v-force 3 reeds, turbine core 2 and a gnarly pipe brings all of the torque out of my 98 cr250.

Awesome job. Love these teardowns and your choice in bikes.

Awesome filming dude! Those Yamahas are pretty dang tough, I’m planning on doing a top end pretty soon for my YZ250FX.

Nick is awesome at what he does! Know him from our younger years.

in short, you didin't wait too long

Sick video, Brad! Keep em coming!

Great, it seems so easy into your hands !

I’d like to see some videos of your track progress. Keep it up man, love the vids

Glad i went back through my subs and found the video announcing this channel.

My nephew just smoked my rm125. 97. No clue how many hours but man i have a ton of play on the rod so now i gotta get that done. Cant find a new crank anywhere so probable gonna have the local shop press new bearings. Quoted me 500 i didnt think that was bad at all.

I don’t understand why someone would dislike this

Love the vids up the good work

Great video

2 strokes are reliable, as long as you take care of them and be sure they have fresh/proper lubrication

We need more vids from you man you are amazing

Nice bike.

aye thats my mechanic hahaha

been a subscriber for longgg time wr450 days wild

Good vid :)

That intro was insane

Quality video

Shredddderrrr

Would the freight train kit work for a 2021 yz250f? Seems like its lacking some low/mid grab👊

I love the music at the beginning

you should get injected small bore 2 stroke for your next bike and test them out!

im going to do this soon to a quad

Another great video, thanks for all of them!! Can you tell us the cost and rough time for this kind of rebuild ? I'm picking up my 125x in January and can't wait!

Hey man just wondering do you still have the old tank from the 2002 yz250 build?

Quality videography buddy! Great work. I need to start using my Canon for making videos when I'm not shooting GoPro footage. I'm still very one dimensional when it comes to getting good footage.

Hi great video what metering rod are you running on the yz125 using the lectron Carb and what measurement have you got it set at? what is the altitude and ambient temperature that you are approximately Riding at any advice would be very much appreciated thanks

My name is Brad also. From the grand rapids area. You ever ride with any viewers? Would love to go out and rip it up with ya and maybe learn a thing or two!

What performance mods would you recommend for a 125cc pit bike (4 stroke)

👍🏽

What oil were you using and mixing ratio ?

Is the freight train pack suitable for different moto brands

Post more often

Newbie here. What part of a two stroke needs to be rebuilt and how often and why?

Are you going to re Nickasil the old cylinder or just keep refreshing with new OEM cylinders?

Feels like a commercial or one of those TV shows that just tells you to buy stuff

Can you do a video on cluch control

Hey berad are you gonna get anymore posters in?

BuT TWo stRoKes ReQuirE MoRe MAintENanCe

do you any reckoned good parts for a rm 85?

I do not know if available for you, It would be nice to see what amount of power is at the wheel of a newly done motor to just after rebuild.

What’s redline rpm from that bike

May i know where to buy his engine stand? I like his stand coz i can turn.

I’m 32 and I got my very first bike this past summer, but I’m just not mechanically inclined. I’d love to be able to repair/replace/upgrade parts on my bike, but I get overwhelmed and I’m afraid that I’m going to ruin whatever it is I’m taking apart.

You should do more pranks and love you videos

Wow... thats alot of hours for a 125. Normally most never go past 50 hours on a top end on a 125. That set up shows how good it is for sure 👍.

how many hours do you ride with gear oil?

Why do new engines wear out so fast? I have an 86 KDX 200 my uncle handed down to me and other than aftermarket reeds it runs perfect and starts 1 or 2 kick.

Hey brad, Ive got a 2010 Yz250 its completly stock other than a heavy flywheel, Do you think the freight train bundle will be great for it for enduro? Or should i just get cetain bits of the package?

Can I use this kit on a 1999 cr125?

How much mileage if 150 hours is convert to distance covered in kilometer? 3000 km? 5000 km or maybe more?

Hola tengo una yz250 2 tiempos y no se como ajustar la suspencion para enduro y me gustaría tener tu consejo puedes ayudarme por favor

One way to avoid that crank seal from going bad is to take the ignition cover off after you wash it and let it dry out and blow some air in there.

Hey @BeRAD what does it cost to do a full rebuild on a yz 250

I'm debating if I want to tackle the top end on my YZ250X myself or not when it comes time to rebuild. I'm mechanically inclined, but I don't want to mess something up on my $10k bike... But that's also why I went 2 stroke, so I could do the maintenance myself. I'm just not sure how much money I'd save doing it myself vs having someone do it for me.

Do you ride with glasses on? If so what goggles do you use that fit over them? I have Oakley air brakes and they don’t fit over my glasses.

what dome with you recommend for the Apex head Mx sx or Xc I ride a little bit of everything but mostly same riding as you

My yz125 has compression and starts first kick but has no powerband ? Someone help me pls!!!

i only rebuild if it stops runnin

BERAD, don’t u have a YZ 250 to?

Bro why it’s a 2020 I’ve been hard ripping my 125 for 3 years now and still running great

Isn’t the lectron carb too long? I’ve heard from a lot of guys that the airbox connection into the carb rubs against the shock spring.

Nice glasses, four eyes. jk I missed you brother.

150 hours is what I put on my top end

Do you deliver to finland?

Those mountains were in Michigan?!

700 for a engine stand? Wow

7:00 Yo dude, get those knuckle savers back on and some color theme. Make it look like it runs

The prices on you're site are a bit to high😱

BERAD..I gotta 250x AND WANT THE .MX APEX HEAD ALONG WITH THE LECTRON AND BOYSEN REED VALVE..WILL MX HEAD MAKE IT A REGULAR YZ POWERBAND...OR WILL IT RETAIN SOME OF TRACTIBILITY.?.I WANT MORE TOP..

Sup

UPLOAD MORE

A little off topic but when when you ride enduros and stuff do you wear contacts or put goggles over your glasses ? I am at the age I kind of need my glasses and not sure I want to go to contacts .

Pretty sure ik where he's from🤔🤔🤔

Answer: Yes.

I’d go every 500 hours

My pistor Ride over 200mth😂 on 125yz

You didn’t wait long enough

That think has no compression considering you rebuilt it 😂😂😂😂

To the 1% reading this god bless, stay safe and have a wonderful day (my dream is to become a famous moto vloger) Thanks ❤️❤️

ништяк, пойду каву перетряхну

Why do you rebuild so often are we supposed to do that... I thought we do simple stuff like oil and stuff but your literally taking apart everything and that’s too much for me but I really want you input

This stuff is pretty weak if it stb at 100-200 hrs

why waste the time and money splitting a case when there is nothing wrong ?

150 hours. . . I have nsr125 with 80k km, never done any rebuilds on anything, starts always, runs beautifuly. If 10 hours would be 1k km, so mine should have then 800 hours. 150 hours, 50 hours? Lol, who told u to rebuild engine at that? Change the piston ring if u think u will get more hp, change that seal if it's leaking. U, americans either do not understand mechanics, or u have some paranoid at such quick rebuilds. I don't know, if ur piston goes away at 50 hours, just put then more oil in gas! 20:1 or so. Why follow stupid recomendations on 33:1, 40:1, 50:1 ?