Freshly Rebuilt Dirt Bike Won't Start

This freshly rebuilt 1993 Suzuki RM125 won't start. Let's fix it. #Suzuki, #Dirtbike,
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The following video features activities performed in controlled environments by knowledgeable persons. DO NOT attempt to duplicate, re-create, or perform the same or similar activities at home, as personal injury or property damage may result. 2vintage( Joe Weber, the persons shown in this video and ANY CONTRIBUTOR, ARE NOT LIABLE FOR ANY such injury or damage. ALL 2vintage( Joe Weber) CONTENT IS FOR ENTERTAINMENT PURPOSES ONLY.
2vintage (Joe Weber) makes no representation about the sufficiency of any safety precautions and equipment used in this video.

[@mnmarlin6074]

I enjoy your videos, especially when you get stumped and have a tough time figuring out the problem. Seems like we learn more when the fix is harder! I also enjoy the fact that you take the 'victim' of the video out for a spin so we get to see it in action, then we know that you really did repair it

[@lennycruz4558]

you inspired me to rebuilt my recently bought dilapidated enduro125, its the only bike I can afford on marketplace😅 exhaust barely hanging with wires it has no braces at all, make one from alluminum, the owner said the front fork needs alignment coz it fights off during driving, found out the T post is just over tightly screwed 😊, done tune up, replaced it with new carb, and its good to go, I just need to replace sprockets to high speed, I can see people with their shiny new enduros, but I love mine❤ I make it and will make improvements, its good to have a bike that you know every bolts and nuts, more power to your channel😊

[@b62boom1]

Great fix dude! The little things that cause the big problems are an absolute joy to find.😂

[@JimsNBHomestead]

Fouled plugs become conductive to ground without jumping a gap. The carbon is the conductor😊

[@sunswimgitman]

Great job on spotting that needle issue! Once again, as ever, your systematic and calm approach to chasing down the issues is informative and inspiring. Also, it's awesome that you post new content as often as you do! Really appreciate your channel!

[@jaymcgraw528]

I can't believe it took you that many plugs before checking the carb. Good find

[@JimsNBHomestead]

I'm yelling at the tv😂

[@benmccune2802]

It made me so mad lol just start with the carb

[@fusion301]

@@benmccune2802 Carb! Carb! Check the carb!!

[@stonepinper3183]

Sometimes you’ve got to slow play it for the video. He knows.

[@casey2562]

Diagnostic videos are always my favorite. Good stuff

[@simonlines9618]

Your knowledge on two strokes is really good jo your enthusiasm to get to the problem is admirable a 2vintage day is a good day top work Joe

[@tedh7543]

You are going to make the owner one happy camper! Great work covering all the bases as usual Joe!

[@jesseclute5299]

Yesssss my fav channel. We love your vids Joe and Vinny!!!!

[@tomdombrovski432]

This has to be one of your top 5 videos of finding the solution to the problem. Great job!, great video!

[@michaelmitchell5909]

Great video Joe, always enjoy the suzuki bikes man, they were my first real bike when i got older, having off brind 50s and 80s until i got a 1984 rm125. We ent thru the whole bike and it was an absolute dog until power band kicked in the was a rocket, was a really fun bike to ride, just had to clutch first a little. Always a thumbs up on your videos man!

[@allan9603]

Joe, while you start your initial checks on the bikes, quads..you might want to start with the ignition/kill switch. It could save a lot of time looking for starting problems, and may even save money on buying unnecessary wires, plugs.. I have 5 quads and lots of farm equipment, and can't tell you the money and time I've lost replacing unnecessary things, only to find out the problem was the ignition or kill switch! Great video! Allan in Columbia, SC

[@NubsWithGuns]

How do you know he didn't? It's kinda obvious when it's just the switch.(depending on your ignition system I should add, the bike I am used to woking on uses a magneto ignition that needs nothing but rpms and a spark plug to work so forgive me if i forget that sometimes) Disconnect the kill wire first, if you have spark theres no reason to replace the coil is there? You put it back together and theres no spark O.o what's wrong with it?(ignoring the plug, I always just grab a new plug even if the one in it works, cheap insurance). However, on some machines there is 500 other things in between which makes things harder. But the switch is where most that taught me would say to start at that point. I am a horrible teacher and my words sound a little harsh sometimes but I truly was just trying to help you here. I haven't learned much without doing it wrong the first time anyway. (gotta know what not to do so I get it out of the way right off the bat)

[@allan9603]

@@NubsWithGuns , do you know for a fact that he did? End of discussion.

[@jerrywilcox9890]

He knows what he's doing.he does it his way.

[@allan9603]

@@jerrywilcox9890 Joe takes advice as he sees fit, and if you noticed my post, the first word is "Joe". I'm not new here, and never in any of my hundreds of posts will you find me questioning Joe's skills as a mechanic.

[@jerrywilcox9890]

@allan9603 I don't give a crap if you are new or old that means nothing lol.

[@liorgold5303]

Love your videos ❤ its great when you have spare parts, make your life much easier

[@MM_in_Havasu]

Great video, Joe! Excellent find on that jet needle moving around in the slide, explains the rich condition. Now go take it for a rip!

[@markbrynteson5141]

Love these videos man! Great and very knowledgeable for the younger mechanics

[@martymcmannis6581]

Even though I'm kinda new to this channel, I must say you are one heck of a mechanic always starting were you should. I understand the. 393 subs I see those numbers going up. Thanks for sharing

[@tommyscroggins6297]

When I was a kid and up into my early 20s, I could work on anything with confidence that I could fix it. And I usually did! I'm in my 50s now, poor eye sight, poor finger dexterity, pain all over my body, nearly tore my left thumb off the last time I went riding my KTM 450 with my nephew, in Oct 2018. Haven't had the confidence to finish the repairs to my bike or install the expensive upgrades. I spent a lot of money.🙄 After watching like 2yrs worth of your videos, I think I can easily get my KTM back on the trails. If neck, back, knees, ankles and messed up thumb will allow it. Lol Thanks for such informative vids!! P.S. I might look old, but I can out ride my nephew and any of his friends. I look like a professional next to them. I'll be watching! Maybe get an 08 KTM 450 and do a complete rebuild on it and convert to street & trail. That'll give me a video to help me with mine. 😁

[@send_gas_money]

Thank you so much for making such detailed videos like this! I’m currently troubleshooting a recent purchase I made of a 1993 kx80 with extremely similar symptoms. It would fire for a good bit, then bog and die, then not start for a good time and you had to let it sit for at least 15 min until it would go again. Plugs was always black and wet. I’ve cleaned the carb and adjusted the floats as well as checked my fuel system, but after seeing this I will be going through the carb much more thoroughly. Hope I just missed something

[@johna6968]

So enjoyable watching the problem solving process.

[@sambruchh]

Love watching these videos makes me want to buy a project bike! Would like to see a video of you messing with the power valves so I could learn a little more about it.

[@97delkron]

i have had the very thing happen to me after a carb clean on a tw200. i simply forgot to install that needle hold down. when you pulled slide out and i seen needle rattling all loose like i was yelling at screen to check that needle! nice job..

[@marktroiani5401]

You are the dirt bike whisperer. I love these videos.

[@mattklasen968]

Always look forward to your new videos ! This one was great 👍 Vinny was clearly stumped off the get go just like me! 😂

[@paulweigle6872]

Great job. Your diagnostics are excellent.

[@snowyowl7042]

Great video. Always a learning moment.

[@thatcrazyguyjay]

awesome video as always 2vintage mate i still remember when i got my first 2 stroke it was a project and i was only 14 and it was a cr 250 and it needed a full rebuild and when i was at that id already been fixing motorbikes and cars as i started learning from when i was 8 years old with Honda vision and c90 i got that cheap from scrap yard near me and as the years went on i just loved fixing cars and motorbikes and i still do to this day i just love buying none runners and getting them running again the satisfaction of fixing them is what i love about doing it i've not long got another project CR 250 2001 i cant wait to get hat all sorted and rebuilding the engine :)

[@rintin1874]

Brilliant video Joe watching from Edinburgh Scotland UK 🇬🇧 👏

[@3rdGenCoyota]

Hopefully this owner thanks you for fixing his bike. Good find with the metering needle.

[@matthewpower3062]

Great fix find! I love the Go Pro edit of the miss-shift exclusion, I wanted to rib ya... only cause we all miss second and im an ass looking for internet self gratification. Love the channel, love how busy you keep... I cant imagine keeping that schedule, hope you get to take some time for the holidays!

[@JugecYz85]

Finally u uploaded a video i love watching u fixing 2 strokes

[@paddyoconnor1825]

Love your videos mate. Massive respect from the UK 🇬🇧 👏

[@speertownspecials]

Good thing u have a hoard of bikes to reference if shits missing ur a beast big guy nice work. And by the way I've never seen someone use so many blue shop towels in my life. They need to sponsor you

[@joepulltab6355]

I’ve been binge watching your videos. Learned a lot from them. You seen to have a lot of fixable bikes in your area. Not so much down here. Hopefully I’ll have a project bike to work on soon.

[@bernardjones6162]

You do wonders on these machines!

[@chasleask8533]

Good logical detective work there . Well done . You're an inspiration .

[@WeirMX]

Bought a 07 cr85 done exactly the same thing the needle was bouncing freely same part was missing as soon as i seen it cut out like that I knew exactly what it was 😂 great vids buddy watching all the way from uk 👌🏼

[@miketherider]

We used to call that “needle float” back in the day. People would make getting changes at the track and forget to put whatever holding piece back in or like with a round slide forget to put it back under the clip.

[@timjordan3671]

Drop that carb needle down and it will get rid of the low end bog. The engine is getting too much gas too soon on start. A little bit means alot i think youll find. Experiment with each setting until you get the desired reaction. Could also be the saddle (the missing piece) is not seating properly.

[@JoeTheBlacksmith13]

I thought the needle adjustment only effects low/mid to mid/high rpm. The pilot effects low rpm, and main effects high rpm. No?

[@timjordan3671]

@@JoeTheBlacksmith13 the idle jet just keeps it running at idle. But if its the wrong size there can be a stumble between the transition. The needle starts to move immediately upon opening the throttle. Its amazing what a difference a small adjustment will make. You can purchase polished/tapered needles for most machines that really make a difference. Often overlooked in the performance upgrades.

[@Riserevolution269]

i love your videos and i was wondering what you do with all the biked you buy and fix do you resell them or do you keep them

[@mrbilky]

Man you are a master of your craft!

[@tsjjensen8775]

Mechanic MD, well done figuring that one out sir!

[@johnmartin2079]

I was thinking after the first fresh plug run then died,.I was getting tired watching you kick that machine, come on man pull the carb. Another great job

[@martinhernandez7733]

Your valve shimming talents kick ass b

[@jonmartin6451]

Man now you know something else to look for! The rock under the rock😊

[@jetstreek17]

got to love a good mystery and challenge. Thanks for letting me hang out in your shop today. love the content and the excellent camera work.

[@thebigguy8306]

Good looking cycle. 2Vinny looks undecided about Suzuki. Looks like a fantastic time to ride.

[@jerrywilcox9890]

He didn't buy it if you would listen.

[@jumpinjojo]

He didn’t buy it. He’s fixing it for someone else.

[@thebigguy8306]

@@jumpinjojo OPs, missed that part

[@tgcrissy7327]

Nice job Joe!!!

[@martinhernandez7733]

Your a good role model brother thk you changed my life

[@bighomieJ5X]

thanks for the early upload, stuck in traffic 👍🏼

[@SwedenLover090]

Nice work! 🎉

[@user-ol5zr3pb9n]

Great mechanical skills every time. 👍

[@jedslather]

And today I learned something thank you 👍

[@trab1981]

love these videos think i watched them all

[@bevis226]

A small power band adjustment can fix your bottom end bog. Some RMs like a full 1/2 to 3/4 turn of preload and others only like around 1/4 turn of preload.

[@ar2043]

Another nice job Joe. You really oughta think about getting yourself one of those cheap borescopes from HoboFreight so you can add reading "piston wash" to your repertoire of tuning. It's every bit as good as reading the plugs if not better. Also, when reading the plugs, you should hold it wide open heading towards your truck and shut the power off with the throttle wide-open until you roll to a stop. That will let you know how it's running at wide open throttle which is where these things tend to burn down. Anyway, read up on reading "piston wash" and get yourself one of the cheap borescopes from Hobo. A guy as meticulous as you would love to add that to your tuning techniques. I promise. 👍🏼👍🏼👍🏼

[@jerrywilcox9890]

He's knows what he's doing 😂😂.

[@ar2043]

I know he does. Just figured I'd throw it out there. Believe me.... I'm a fan of his for sure.

[@user-wk8gg2uj8b]

This was my first bike ever and I loved it! really reliable bike with a lot of power for a 125. They were built to last and dog the shit out of. I miss my rm125 93

[@stevemayo1175]

Nice Job on this 1

[@northofhwy8180]

What a nice find in the carb.

[@dirkhuman760]

Petrol Head entertainment. So nice! I said from a few minutes in it was a needle and seat issue with carb flooding the motor. I'm so stoked I guessed it right. You're a good teacher for sure. Thank you. I miss my RM125.

[@Mattjf30]

Great job Joe

[@donkndave7811]

Amazing. As an amateur mechanic I could see the problem was with the carb. But I would have NEVER seen the problem like Joe did. I would have been stumped. Who would have thought the needle holster would be missing? Not me. Great video.

[@NubsWithGuns]

A good majority of people would swap out the carb and not look. I for one would maybe not find something like that unless it was a model I had taken apart before.

[@MrCelticatheart]

I was yelling that it was the carburetor, but I guess he couldn't hear me LOL

[@MrCelticatheart]

Joe has one up on the rest of us...an extensive bike/carb library to look at! Then its a matter of playing the old sesame street game "one of these things is not like the other".@@NubsWithGuns

[@paullesarge4126]

Great job, excellent video as usual

[@thebrokenbiker869]

Dam such an easy fix. That had my head scratching

[@darreng2639]

Sometimes its the simple thing that can have some people chasing their tail for days. Good job finding the issue

[@bfox87]

Learned to make sure the slide needle can't move up long ago, I called it in my head lol

[@BMWBuilds]

New subscriber here - love your videos. Keep them on while I rebuild my own bikes :-) one question, what’s with the beeping in the left stereo channel every few seconds?

[@robertcraft-pj2jp]

Great job joe!!🇺🇸👍🏻⭐️

[@BillyBob-uc9zp]

Well done Mr 😎

[@psilver063]

Joe, at the 2.00 mark are those giant snowballs in your little black trailer there?? 😂

[@AZVIDS]

Nice fix👍

[@Andy-co6pn]

From the sound of the main jet numbers you called out, the 93 RM125 has a Mikuni carb and the 94 a Keihin, so theres no confusion over the jetting, as you found out a bit later

[@Ty-NY8vp]

I love Suzuki’s keep the awesome videos coming

[@davidmancinone1541]

Hey is it joe,your my hero,i watch all yur vids,learn alot too,i have a question,it seems you always find the problem,did you ever come across one u couldnt?

[@johnandersson]

Ive seen this needle issue on several bikes. The last time it happened I cut out a piece from a beer can that worked as a stop for the needle

[@jowens7896]

Attention to detail is key I watch all your videos. If you ever get a chance do a Suzuki Vinson 500.

[@Yaboidkilla]

Waiting for the yz125 rebuild. Need some help on the valves. I took the valve cover off and it was absolutely full of oil. Would it be the valve seals?

[@bananabrooks3836]

Oh, it's a customers bike. 3.1/2 minutes in, just keep kicking and kicking coz yeah, bikes sometimes fix themselves if you keep kicking...... It sparks fine but keep wearing out the kick mechanism why dontcha. However doing a plug check (you could go a touch leaner although is the carb needle back to stock now?) and re-testing compression was good practice.

[@terrytraina6080]

Good job man!

[@bigbullhorn8443]

Awesome eye finding that

[@leehuntley189]

A piece flew out of the choke plunger when you snapped it back

[@bigbullhorn8443]

I seen that too but I’m thinking it was just a piece of gas/oil gunk. Hope so

[@bananabrooks3836]

Was that what was on the floor?

[@jasoncompton3735]

Dirt bike videos the best!

[@derek4073]

Your dog is hilarious with a good attitude. Good find, with a shop you could have your own repair shop garage.

[@motorcycleman3322]

I have a question I found a can am ase 350 needs a clutch bearing I'm told for 900 I'm in Canada wondering if it would be worth it to repair and if you've ever dealt with one of these can ams before.maybe you know a spot were I can find parts Im having a hard time finding some.thanks.

[@ericrogner2461]

Great vid always enjoy thank you

[@gti20vtMarcel]

Good find Joe that needle clip!, but still lacks a lot of power when i see you riding it though??

[@rumple7551]

I still have the 94 rm 250 absolutely love it probably one of the easiest to work on bikes ive ever had. Also hammered the crap out of it and never had any gasket problems or explosions.

[@nicnadu0515]

Same here I have a 94 kx250

[@jaymcgraw528]

What was sparking to the left of the guage at the end when you did the compression test?

[@DIRTVLOG]

You are a master! Appreciate all your content man!

[@jb6579]

Keep up the good work

[@murrayminimotors1674]

Once again sweeeet video thanks

[@fredericklogue6566]

Little set back that you would purchase a bike with a ground off vin, and act that its ok.. That is the reason so many of us have had bikes stolen.

[@gzo313]

I thought he was just fixing it for a subscriber?

[@knvern]

You definitely weren’t paying attention. I don’t disagree with you but you should probably keep your thoughts to yourself if you don’t know what you’re addressing in your comment.

[@grabir01]

Missing the Pac Man washer that holds the needle down.

[@jayd879]

Another great video !

[@sandmanbub]

Joe, did you try riding the bike with the jet needle circle in the center position (richer than the setting when you received the bike)? Might give a little better performance where you've noticed the flat spot in the power curve.

[@onebreathoneshot6022]

Awesome video💪🤙

[@Jdwescott]

Whenever vinnie is on our little shorkie stops and watches the tv.I think she has a crush on him lol.

[@ladyjedi3D]

🎉🎉😊Vinny!🎉🎉 Happy Friday!

[@MXBrando]

I love your videos man. i took inspiration and i’m gonna start a channel of my own!

[@74charger44]

Joe, how about an update on all the bikes and stuff.

[@davidcarnell6032]

You are an investigative genius with bikes