My Dirt Bike Won't Start! - Things To Check 

Man I need to learn this stuff . New bikes are too expensive.

Once got 3 TTR's, 2 230s and a 90 for 1000$. Sold them for 1100$ each and the 90 for 700$ after running the piss out of it. Gotta love knowing how to fix things.

Step #1 make sure the kill switch is on...

Fastest way to start a stock TTR125: Remove stock Carburetor. Install VM24 carburetor. Kick lever down one time. Adjust idle screw. Ride. Spread the word.

This is a very hard topic to cover based on how many different scenarios there could be, but you guys did a great job!

I tried to start my dirtbike its got no motor......ran good :) thanks for the tips

If you want to know if your fuel system is the only problem, put a little spray of brake cleaner in the intake boot then start. If the engine start and run for a few seconds, you know that your spark and your compression is good enuff.

I had the same problem. I had to take my whole carb apart twice because the first time I put it together I left the float bowl down and it would leak gas when I turned it on so I had to redo the whole thing again. After cleaning the carb it still wouldn’t run so I put all brand new gas and jets still wouldn’t start. Tried a spark plug and it finally kicked over after 1000 kicks lol

That’s the ugliest bike I’ve ever seen the pink and blue one

First of All : Check the exhaust plug is taken off

Many thanks!

Bought a used 125 for £80 yesterday, told me it’s spares or repairs, found out it was £900 new in 2009, upon further inspection I saw that the cheap Chinese spark plug just needed changing, costed me £5 for a new one, gave the carb a quick clean, and now it starts first time no issues and I’m about to list it for £450, love being mechanically minded lol

I currently got a ttr 125L and it just suddenly quit starting. I mean literally. Rode it to check my mail, few hrs later went to take the dogs for a run and nothing. Tried for 2 days. I'll check these culprits.

Half the time I forget to turn the key to on before trying to start it. Yeah yeah, make fun of me as much as u want.

I have a DT 100 it ran out of fuel and it won’t start please help

Great video 👍 should do one for efi bikes since it can be a little more technical.

The fact that this bike doesn't have rear disk brakes stresses me out 😂

I think I blew up my 2004 rm 125 ridding down the street

All the things work help me

Need some solutions for a fuel injection!! Help please!!

I checked all of that and it still won’t start.I cleaned the carb,checked the spark plug,switched the gas and oil,and checked the air filter.There is compression and when I kick it,it sounds super close but no matter what,it doesn’t work.

I feel like i could start mine if it didnt stop my kick 60% of the time

So my plug keeps getting wet from gas/oil mix, it will run for about 10 seconds then cut off. I have to clean my spark plug then it will run for another 10, im 3 turns out on the fuel/air screw

I just dug out my 2001 ttr125L from storage at my parents house. Havent ran it in years and literally just went everything you described.. Minus cleaning out the jets. The bike wants fo start and it stqrts strong and goes for a few seconds, but as soon as I apply the throttle she dies. Im guessing its the jets? Or some sort of air\ fuel ratio is off and thats way above my head

I have a yz 250f and it drained the oil while I was riding and it locked up the bottom end. I have the new parts but the motor is completely torn down and I have no idea how much it’ll cost to put it back together. And I have a xr650L and that’s making a rattle noise and I think that’s from the bottom end aswell. It loses power when I ride it. And I don’t want to blow it up. How can I fix this??

thinks i have a yz 450 and i just got it fixed cuz i wached this video

You should start the motor to prove that your tips is working.

Lol my bike is brand new built it my self never had an issue with any other bike but this bloody $2000 ZS212 Chinese motor I got 5 gear 22hp I put it in a in I don’t know what he’s called in America, but it’s got a postie bike here ct110 postie bike fully restored it and can’t even get the dam motor to run and the bike has been sitting because off it for like 7 months irs got spark its got compression as for air intake doesn’t have one just a little pod filter but I had another bar that was riding flying without the air filter

Hi, I’ve got a 2008 Yz250f and for some reason it won’t kick start when I have it in gear with the clutch pulled in, however it starts easy in neutral and selects all of the gears perfectly. Do you know why this could be?

hello, I have a question, I mixed gasoline with Ronda and I poured Ronda, my motorcycle shut down while driving and it wouldn't start, I drove home, took everything apart, cleaned the carburetor, but the spark plug was black, so I'm going to buy a spark plug and I'll try to see if it will fix this problem, do you know what could happen to my motorcycle due to Ronda?

Thank you, very straight forward even I can follow these steps! 😊😘

Win I tried to start

Hiya. My bikes been off the road for approx 1 year. I've fitted a new battery but when I switch on? I have nothing. Zero. No cracking. NO electrics at all. I've checked the battery for charge,checked fuses and checked there is feed from the battery to the ignition switch. Any idea's why I still have nothing? would be greatly appreciated.Thanks

I’m not getting a spark and I got a new cdi box so I need ideas I have a 98 yz250

Hello I'm having a issue having doing a topend rebuild on my 125 2 stroke.... Im only geting 50psi and it won't start... What have I done wrong

Well thx, but it didn't help. I have spark, i have gas, my airfilter is good and i have compression. I looked at the main jet and pilot jet and cleaned them. I can see right through the tiny holes. Put it back together and tried to start my dirt bike. It wont start. What hte hell is wrong?? Please help.

I have a 85 cc 2 stroke it has spark but won't start at all what can it be gas is also good any clues

Thanks man I didint know my bike had a air filter I don’t know a lot about them and just thought it was battery place. My problem is when I hit the fuel switch on no gas is coming out like somthing is stuck

My bike was running fine, the next day I started it and it rev really high, I tired adjusting the idle, no change, and it's hard to start, what's the problem???

My bike won’t start on grass but starts fine on concrete any tips???

My bike worked one day then the next day, it wouldn’t shut on. Any ideas?

My Apollo dirt bike 125cc motor want start

I would so ride this bike. That’s a dope bike 😍

My will not stay funnjng i cleaned the carb. New gas . And my throttle twister for the cable. Seems like when u turn it pulls i losen it up and it dies but it when I apply pressure to the throttle cable it seems like either it's too tight or it's too loose. I can't seem to find The Sweet spot and it used to start every time first time now I cannot get it too

I need to know how to time my ttr 125

fyi a dirty air filter is almost never the reason for a bike to start. my yz250 had a absolutely filthy filter and it still would start.. granted it would take a few kicks.

Hey so After a ride my bike just keeps tumbling and wont start 1996 Honda XR250L

how do i see if it has compression

My Honda crf 150 r starts but It got extremely difficult. Thank you now it takes 1-2 kicks not 10.

Was riding in 4th gear pretty fast bike died quickly no real bad noise just off,got fire to plug pored gas in cylinder,plug back in and can't get it to even try to hit , what could. It be

Hey everyone i got a yamaha yz85. My first cross bike. When i bought it it runned fine. But now the bike wont start. I have spark. New fuel. When i run start it just dies. Even if i try to hold the gas. Dont want to hold the gas to long cus i dont want to blow it tbh. Annyone have some tips? Cleaned the carb. Have not changed air filter yet tho..

My bike runs beautiful except once the engine cools down I have to manually pour gas or starting fluid in the carb

Don’t kno if anyone will see this as I am commenting on a 3 year old video but I have a rebuilt 2005 kx125 , got a new carb with it tuned by a professional, new clutch plates, new spark plug with spark, there’s compression, gas flows freely into the carb, everything is new on it , it was running fine then one day just wouldn’t start or even act like it wanted to start, I’ve checked the kill switch and everything and can’t figure it out , can anybody help me out on what the issue is Bc I have everything it needs to start, compression, spark, gas, clean carb, everything . I’m completely lost with it .

New head spark oil gas the bike was running fine I put it away for 2 days and it wouldn’t kick back on

My bike turns off but makes a loud noise I ride it then it turns off while riding it. My friend said it could be the clutch blades but can someone help?

My kickstart goes down without starting I hear something spinning but it won’t start what do I do?

What type of spark plug does 70cc Coleman gas powered bike have because I lost my bike Manuel

I just have very high compression and it takes like 6 kicks what should I do

My cr85 kicks but won’t start I Alr put a new spark plug in help me

My dirtbike won't start. I'm a beginner, and I was riding with the choke on, cus it's cold here.. but after like, 10-15 minutes, the engine stopped. Next day, I saw that something had been leaking from, what looked like the exhaust pipe, and when I try starting it, it just makes like a bubbly noise, sort of 'blub blub', if I'm lucky, I'll get a 'blub blub blub blub'.. I assume the engine got flooded with gas, but how do I check if that's it? and also, dafuq am I supposed to do with it? I can't bump start it, cus the clutch won't work that way (it's a chinese bike..), even if I hold the clutch when in gear, the rear wheel still locks.. Also, I've only been riding on asphalt, so it's not dirty or filled with water.. I really would like some help, it's just a chinese bike, but I really want to save it.. and are there any other alternate ways to start it? like with the bump start, but something that might work on my bike?

Is 200 good enough for a pw80?

Ok, so I wrode my klx140rf through a little puddle of water, and it was barely at the engine like that's how high it was. And after I got out of the water, I was only in for like is full second. It wouldn't start, it wouldn't idle, it wouldn't gas. And when it did start, I couldn't rev but an hour later, perfectly fine. Why

my kx 85 wont kick down for the kick start and the running start wont work because the wheel wont move.

Well the spark plug trick sucks on a crf450.

I have a 2002 yz250f it will start but sparks fly out of the exhaust when it’s running what could be wrong with it?

my bike wouldnt start because the spark plug was wet so we had to make it dry

I have a 2015 kx85 and I think I blew the top end but im not sure please help.. So I was riding and my bike started to bugg out and it locked up the tire. It doesn’t turn on, Ive put new transoil and I checked the spark plug and it still doesnt turn on.. PLEASE HELP ME

My carb is clean has air has spark has compression but no start

I wish Mechanics like you exist in my country ...

Hello i need serious help, Recently i rebuilt the top end of my 2012 ttr 110 but it doesnt want to start. Idk what possibly could be wrong with it. From what it looks like i think its in perfect timing, it has spark, the carb is taking fuel and the airbox seems to be fine but it still isnt starting. It has compression can somebody please tell me what i should go over next?

My pit bike has a problem starting I can’t actually start it right now I have a new carb an air filter new coil an new spark theirs oil gas before I had it. It was sitting for 6-10 year I don’t know the problem

Literally everybody that’s trying to sell a dirt bike,”needs a new carburetor”, it’s bs, but if you’re getting it cheap, just ask broke

Compression, spark, fuel, timing. Why do you need hand condoms?

hi my honda nrs 150 sp doesnt want to start i got a new spark plug i have fuel im getting spark and air and combustion is good. it should start but its just not happening can someone plz help i got allot of mechanics saying its the cdi but i want to be positive before i buy

I have a Chinese db17 125cc, i know don’t even tell me. I let it sit over the winter, new aftermarket carb 1 year ago. jets were cleaned 6 months ago, throttle had no tension at all replaced that, throttle has tension now, checked my spark plug looks new no residue, only thing I can think is wrong is the jets are clogged. There was black flakes in my fuel injector idk that plastic piece that shows gas is flowing into the carb.

i have a 2007 honda cr 85 i put it away for a while and it wont start it has fresh gas brand new spark plug with not even one ride on it and it still wont start before we put it away we put brand new jets that are bigger then stock ... whats the problem.

Was riding my bike and the bike shutoff with a loud popping noise anyone know what’s wrong? It won’t start now

i have a 2 stroke Yamaha rt 100 it want start and the last time i road it. it started to backfire and i cleaned the spark plug i got it to start once do you have in idea what this means

I have a Thumb 110cc dirt bike and it's not starting i bought new carb bought a new spark plug it has Fresh fuel and compression in the silinder but it's not getting fuel Even when you put little bit of gas in the silinder from the fuel lining but it dont start

my moto have spark and everything is clean and when i try to start the bike it won't work

This man said that’s the main jet? No that’s the cover of the main jet. The main jet is the 8mm nut under the “main jet” lol

I can’t get my damn yz250f to start

I got a 140cc it needs to be jump started because it don’t got a kick starter and it’s a custom bike it goes when it’s warm but if it dosnt start it can’t get warm

Compression check?

I have a 2013 kx250f. It wouldnt start so I change the air filter and ran. A month later it wont start. So I change spark plug and nothing (you can push start it). Test for codes and it was clear. Any ideas whats wrong?

can i spray starter fluid in the airbox and kickstart the bike . whats the worse that can happen

I think mine is the gas, but idk how to test it and have been putting it off for months(the gas is probably 2 years old at this point) only thing i know for sure is it doesnt kick start, or roll start.

Thanks for the video

Mine was running perfectly fine and started first to second kick and two days later I can't get it to start any tips?

I have a 1999 xr80r I put oil gas spark plug in and still won’t start

nice vid. only thing i would add, is sometimes when cleaning the pilot jet, the holes need to me poked with a needle. especially if the bike has been sitting for a long time. in my experience at least.

Got a 2011 ttr250 lucky enough to start but most the time won’t start at all

Can to much air make a bike hard to start?

You guys do a vid on trials bikes or have any advice?

Anyone know where I can get new plastics for the exact same bike in the vid

It made a loud pop like a fire cracker 100cc Yamaha

good information

Pliz pliz pliz can u tell me why my dirt bike is making noise when starting it while cranking and it doesnt start at all

Want a yzf450

Cdi box????