Wow, that must have been the easiest fix so far and the seller didn't lie. Makes such a nice change.

Respect to Vinnie! He knew it was just a carb clean.

Quick tip… leave both ramps up when unloading dirt bikes… 1 for the bike to roll down and 1 for you to walk down lol

Sick ass bike. I used to have a 690 Duke, now I’m riding a 525exc. You got a stupid good deal.

My friend had a older YZ80 he got dirt cheap for his kid, the previous owner went crazy tearing it all apart, cleaning everything, ordering new parts and finally gave up. He sold it to my friend for $350 as he had had enough.. He had it a week and it would only start and run for about 8 to 10 minutes and then die out. if you let it sit for an hour or so it would start up and do the same thing.. He called me up to come over and look at it.. Same thing I rode it for 10 minutes and it just died.. I pulled off the gas cap and kicked it like 11 times and it started right up, I then pulled off the gas CAP HOSE and it was blocked solid, you could not even blow through it.. We left the hose off and drive it back to his house,, It took us 20 minutes to clean out the gas vent hose as it was blocked with a piece of stick and lots of dirt.. Once cleaned out the bike ran great!!! My friend called the guy he bought it off of and he asked his son if he knew anything about sticking a stick on the hose on the mini bike and he said yes he was bored one day and stuffed it full of sticks and mud... Needless to say the old man was not happy as he spend countless hours and money into a bike then sold it dirt cheap only to have t be a $2 piece of hose.

That spark plug test was so cool

Seller didn't lie?! must be a parallel universe

What a great deal. KTM Super moto for $1500🤯🤯. For all those times the seller made up some BS. You finally received the honest truth. I've never owned a SM. But, I've always loved the look. Another great video. Love the content.

Joe is a monster mechanic.

Congrats!! "all it took was a carb clean" "simple carb clean fixed this bike." (underestimates full tear down of carb) Well done brother, I especially appreciate your diagnostic approach and teaching us all your train of thought and skill set. Enjoy!

Fyi, the Trail Tech will turn on when you move the bike. there's no need to manually turn it on. It's also an aftermarket accessory, so it wouldn't have shown you correct mileage anyway. I put one on my 07 Raptor 700 and love it.

Had an 04 625 SMC, with Full Akra exhaust, Rallye cam, rejet carb, lithium battery, radial m/c, under 300 lbs wet, till sold @ 14 k miles. Beat many 1000cc sportbikes on the dragon. There was a recall on a cam follower bearing that KTM didn't tell anyone about, incl myself until it failed and had to replace bearings, cam, valves and head. Make it a priority to research the recalled bearing and replace those bearings. Also, try to store older carbureted bikes vertical, not on side stand as this will wear an oval shape in the carb where float needle goes-that's what causes them to stick and either not get gas or piss it out the overflow tube. If that has already occurred, you can take a dremel and the white soft polishing attachment, cut w/ dykes to just fit into hole and use polishing compound till it is bright- this will make it round again, so float needle doesn't stick.

Vinnie is excited ... i second that emotion!...

With any off-road bike it's both easier and quicker to get the carb off by removing the subframe. Plus you don't have to wrestle it from around other parts while having to risk breaking or tearing things like the intake boots.

It's funny, but when Joe first took off the filler cap I thought, just do a test start with the cap off ad see that there is absolutely no fuel starvation from the tank holding onto the fuel... And, err... that was probably the issue main all the time even before the carb clean. Very nice bike.

A lot of u tubers getting spark plug testers, you got a nice one.

Issue I see is a 5 gear wheely @ 100 mph plus will make ya shorts dirty lol

Man you make fixing bikes fun!

Some people are honest and just don’t wanna deal with stuff when it quits running. I’ve bought and fixed many machines for under $1,000 that didn’t run and all it needed was a carb cleaning or something else very simple.

I had a 640 supermoto in 1999 , in England, & that was a factory made model. One my favourite bikes that i've had . So much fun around the twisty back roads. Even went to the 2000 Isle of Man TT on it. The only thing that went wrong on it was the side stand cut off switch.

Just a FYI, pay close attention to how the filters go back in when changing your oil. I had the 2006 model and while changing the oil I didn’t pay enough attention to the filters as they will go in either way with nothing to stop you. It ended up costing about 700$ in 06’ and that was after a deep discount. Their sweet bikes! Too heavy for off road and the vibrations on road were overwhelming at higher speeds. But I didn’t have the supermoto edition. Cool channel, really enjoy your videos.

Love how you can just leave your bikes outside unattended. Here in the UK if you turn your back for 2 minutes your bike is gone

It's a keeper , if you put some street and trail tires on it , you can rip the trails and the pavement 😊

That spark plug tester was cool. I have never seen you use it before.

Another great morning to be alive

Brilliant video Joe watching from Edinburgh Scotland UK 🇬🇧 👍

Great job. I have a 2006 version of this bike, also transformed to Supermoto spec. Very rare bike in the UK. It's an absolute beast. I love the KTM styling. Nobody does it like them.

Don’t put 110 in it that’s why plug is black it’s not burning it .

Just bought a 2000 KTM 640 Duke 2. I had similar issues and it was a bad o ring on the bottom of the slide. LC4 motors are super reliable,but they do vibrate a lot!

Looks like a fun bike! It reminds me of the European movies where the bad guys are chasing the good guys on these types of bikes. They go down grassy embankments, sidewalks, stairs, you name it and seemingly can go anywhere with ease, and are quite fast and capable. Glad you finally got an easy fix, Joe!

I have the ktm sm 640 lc4 having problems with the auto decompression on electric start been told its a common issue on these engines I was really happy when I saw this episode as it needs carbon sorting as well

For that price with all those upgrades $1500 is a steal. It looks like a lot of stuff is not hooked up for that display though. that might have been some of those plug by the engine. There are a lot of upgrades. That high beam does not look stock, the lighting, the conversion kit, the street tires. It looks like higher end rims and an upgraded chain. It might have engine upgrades and a tune. And a clean title. I would take the race fuel out and make sure it runs good on pump gas. You also need to fix the rear turn signal. I would also see if the seat could be fixed. Maybe a heat gun and stretch the vinyl a bit. Then clean and wax it. With some good pictures with the lights all on you should get $4000 or more if you are lucky. Definitely get all the functions on the display working like voltage and RPM.

Love your in-depth videos bro. Also, you have an amazing home to admire as well. Keep up the great informative videos. Thanks, Mark

The bike is certainly not for the faint of heart. Cool bike but limited market. At 64 I'll tell you I'm scared to unleash that beast!

The education you share is worth more than a small engine course at a college ❤

That spark plug tester is a really good diagnostic tool for the arsenal I must say.

That seems like a charitable contribution!! I'd say you're bringing lots of good into the universe Joe!! That's well deserved seeing the shellacking you've taken without wearing it on your sleeve!! Great buy and very nice of the seller for doing you a solid!! Congratulations!!

Joe really enjoy working with his hands and sure know how to restore and fix motorcycle. Thank for sharing. I wish you many happy years behind two wheel. God bless you sir.

Don’t ya love when you don’t find “the issue” but the issue is fixed when you take it apart clean and reassemble. Nice 👍

I wanted a dirt bike and the only thing I found under $3000 was a Chinese air-cooled 4 stroke Orion bike for $1000 😂😭 I wish I found something like this.

I had a 620 lc4! It was a tractor but I loved it! Stupidly sold it dirt cheap for the deposit for a brand new bandit! These are known to eat sprag clutches and damage gears in the process!

Great work joe! Always good practice to disconnect the battery before working on the computer/ electronic systems. I have seen them fry from accidental contact while diagnosing witing issues. Love the content man keep it coming!

I raced KTMs in the 2ks, great bikes built all my race engines and won championships in endrro and HSs

The lunch break vid is up and wouldnt you know for once the seller wasnt trying to scam somebody. If the seller see this man props to you buddy for not being like all these kids who think a 25yr old bike is still worth new bike prices

Nice find! I once found a backpack leaf blower at an estate sale for $10. Just needed an Air Filter. 😂

Anything with spoke straws and an "F it" sticker is something I'm staying away from. Always wanted that bike when I was younger. Have a '21 690 now and I love it. It's a unicorn.

Dude build a 6 foot by 8 or 10 foot loading dock beside or behind your garage. Then just back the truck up to it and walk them down the dock ramp. SAFE & EASY especially for a one man operation! You always have the seller to help you load but you’re always unloading by yourself! If you hurt yourself you dont get any do overs in life! Be smart - Be safe! You’re too young to screw up your body and deal with that injury the rest of your life! Been there - done that!

That spark plug tester is badass!

That's a nice Kmart Trail Master, Joe

Just bought a chinese four wheeler. It's not all that bad actually. Only one problem though. It likes to cut off when I hit a bump or when I slow down. Kinda like what this bike was doing. Love your videos by the way! Keep them coming!

It wasn't the gas cap. It's those junk vent hoses with the ball valve. Had so many issues with those that now if I get a toy with one of those, I immediately throw it away. It's an issue with the steel ball getting stuck shut.

First video I've seen of yours that you didn't remove the strange stickers people put on there. I'm sure you will eventually do it. Love the videos. My favorite channel.

I would love to take a second to appreciate the consistency the upload rate and all round amazingness of your videos. The amount of work you must put in is mind blowing 🤯 👏 👏

Great video.. one of the best video on the LC4. I have a 660 smc 04… just love it

My Mate had a KTM and I had an SRX600 - He had it stripped down one day and I was surprised at how short and light the piston was - that thing was well fast and made mine look like a plodder

2 minutes into the video and I'm thinking wow if this just needs what the seller thinks, you got this thing for a song and a dance!! What an awesome bike for that price, no matter what it needs.. if it starts, it runs.. awesome Joe, what a find!

vinny is the cutest pup. i love how you always have time for him.

Great find glad you came out on top on this one.......Stay Up, Hard, and Healthy brother.....🔥🔥🔥❤️👍🏽💯

Love the constant and banger content brotha keep it up

I owned a SXC too until it was stolen - loved this bike and it had a lot of power - i think there where some differences in carb and/or jetting between us and europe - i appreciate your videos and what i have learned from them so far - keep going! - Best Regards from Austria

Great job!! The lc4 engine is a beast! I encorage you to check the rocker arm rollers as they tend to fail over time and do a waterpump rebuild. With that checked, you will have a bulletproof engine. Greetings from Chile!

I live in Appleton, WI kinda near you, my buddy bought a dirt bike off you a while back and it has been running well since he got it from you, respect to you! ❤️

You have let me down, I was waiting to see you fix the rear blinkers 🤣

Great deal. I have one in the corner of the barn from years ago. Mines still in its enduro form and always will be. BTW, they love to blow head gaskets. DAMHIK. Its a paint shaker even when running right so dont think that means something bad.

Love you Joe, keep up the great content. Best youtuber ever ❤️

2 things tells me how well it's been looked after... the header pipe is as good as new and they aren't cheap, and the ktm on the seat is clear and as good as new. Great find and deal 👍

The first thing that came to my mind was the ECU was shutting down the bike due to no oil pressure or a bad pressure sender. I'll always remember the fuel vent now. That is a sweet-ass bike.

Bike is a monster, my guy! Nice find. Is it just me or is the rear tire bigger than the front?

Awesome. This is my favorite bike of yours so far. I had a 525 KTM and always wondered what the 625 version was like! Btw I always had metal flakes on my drain plug after 10-15 hour oil changes and my bike had over 12k miles/ 400+ hours on it with the stock bottom end. I think the intake valves are the biggest weak point of the engine since mine started to get tight @400 hrs

This is such a slick looking bike! I'll bet it's a ton of fun! Congrats Joe, I hope that you're going to keep it for a while.

Mine had a decomp lever, so I would hold that in, get the engine spinning over, and then drop the decomp. Much friendlier to starter and battery.

Glad Vinny is around!👍😄

56,000 views in 13 hours. Awesome channel!! I bought a similar KTM with the same symptoms, was water in the gas.

A spark plug tester! Cool 🛠

It's common that it's usually a carb issue and the jets and fuel delivery like the floats or just the air/fuel ratio adjustment screws are off and diaphragms are dirty also! Good job and great find for the price!! 💯👌🏼👍🏻

Just a suggestion, replace that oil drain bolt (it’s probably compromised now) and get a new crush washer and use a torque wrench to tighten. Pretty obvious the old owner didn’t and probably had a leak and just tightened it more and more using the old crush washer to get the leak stopped. If you have a torch you can sand the old copper washer smooth and heat them glowing red (re-anneal) and allow to cool and that will restore the copper to its previous state and ability to be crushed to seal again.

Keep up with good videos mate love ya work from all the way from Australia 👋

Great job diagnosing and fixing

Wow that bike looks real nice i like the colours of it as well great job as always 👍🏻

tips for unloading: strap ramps to truck. and for the dirtbike put in gear and use the clutch to use the rear wheel as a brake.

Awesome that you solved it with a carb Clean! Nice bike there!

Man… where did you find this? I’m glad somebody is finding these deals

You stole that for 1500...those ktms are good bikes as long as you take care of them..I had an 07 450exc with the rfs engine, that thing was fast, I miss it to... love the videos

Nice find, street tires have their place on street bikes, having said that I'm not super impressed with Dot knobbys and I've burned enough of those off, fortunately there are enough different styles that if you keep it you can find something that feels good on different surfaces

Oil plugs are torqued tight on those, can't remember for sure but I think around 40 or 50 ftlbs. Probably clutch material in there, it floats around, normal wear and all.

That should pull some 50-60mph wheelies!

Inspired me to work on getting my 560 SMR started again.

“Looks like Vinny’s pretty interested in the bike…. What do you think buddy? You think it just needs a carb clean???” Vinny - “Nooooooooope”

Awsome work you do! i have an old 1987 yamaha xt 600 2kf 🙂.

Awsome video as always ❤ carb clean .... what a result .

You deserve this one - hard work pays off.

You got a sick KTM Supermoto for $1,500 just needed a carb clean what a steal

Cool, you’ve come into some great buys recently 👍

Great deal there and I hate butt connectors not sure why people use them. Not hard to solder wires and a little shrink wrap.

Happy Days Joe Has Posted 🔥🔥🔥

Oil bottles designed for a reason, if you turn bottle oppo way (curved toward bottom) it pours out in a steady stream. Gdvideo, i had a 650 sm✌🏿

Love it! Here in Germany it was known as the CR500 double absolute beast of a Machine. My Dad had one of these really fun to ride but the Vibration was killing me but this one is looking really mint! Greatings From Germany!

Nice! I had a 2002 Duke- same LC4 motor. About 40 hp. It’s an incredible bike. I used to call it the Mercedes of bikes cuz every thing was tight and worked as it should. Lots of engine brake from the big single so it likes to be either accelerating or braking. Not much of a cruiser ;)

Removing the carb looked like a pain in the butt , It would have been easier sending a man to the moon keep up the great video's

the dash comes on automatically when the front wheel starts to turn and turns off automatically after a few minutes of no input, good video, thanks