Це відео не доступне.
Перепрошуємо.
100cc Kart - Engine seized at 100kph (60mph) - Kartbahn Kerpen (Erftlandring) | Hendryk Lichtenhagen
Вставка
- Опубліковано 31 бер 2021
- Unfortunately my day at the track ended quick because my engine seized.
I don't know why it happened. If anyone knows why this happened please let me know in the comments.
#karting #crash #100cckart
Driver : Hendryk Lichtenhagen
Team : Panda Racing Team (PRT)
Car : Tony Kart 100cc
Track : Erftlandring / Kerpen
That was what I call a "cold seize" caused by many different things that can easily be avoided, well the next time anyway :). Unlike the newer engines that have a nikasil bore/aluminium bore, that motor has a cast iron bore sleeve (looks like a Vortex). The aluminium piston increases in size quicker then the cast iron as the motor comes up to temperature, water cooled makes this a slower vs air cooled. Being water cooled the piston and bore can run a finer clearance then an air cooled too, however you need to warm these up for a few laps first before pulling 18K down the straight. The tune was out, too lean in the mid range and on the high end jet, plus you where running way to many teeth for a casual day out at the track. A two stroke that is on tune should four stroke/run rich down the straight when its cold and clear up when its up to temp. Rebuild the motor and learn how to tune the carb get the motor to four stroke on the straight and then screw in the high end jet so it just doesn't and then tune the low jet so its pulling out of the corners but not four stroking in the midrange. These things are great fun to run but they are not a Rotax Max they are a real race engine and need to be run like one. Driving style has I lot to do with it also, you can not have long periods off the throttle especially before that main straight, if you do, you need to choke the engine with your hand with the throttle open before long parts of off throttle, long braking areas and sometimes in long tightening sweepers. No throttle = no fuel = no oil = no friction modifiers = heat = piston size increases = seize, that's why a two stroke engine will almost always seize as soon as you take your foot of the gas because there is no longer oil mixed fuel lubricating the engine. Hope this helps, btw I have run these things for over 25 years.
wow!
You seem to know where you're talking about 👍
I dont even understand half you're saying, but well done on typing this up
Wow. Best comment I have ever seen. I need to show this to my friend. Wow.
The lack of lubrication during closed throttle is something my dad warned me of when I was just 16. I had just got my first moped. Especially in countries with steep hills this is pretty important information for vehicles with a two stroke engine (mostly mopeds).
But it's not common knowledge, unfortunately.
My second moped was a Honda MB-50 which had it's own oil pump and tank which seeped oil into the intake manifold. That was an absolute beast of a machine, for a 70 cc at the time. It had a top speed of 110 kph.
You can hear that wanna go pop from the get go
Hmmm thought I heard something like that.
Very rough and sounds like it's holding back.
Sounds like a 2 stroke that's about to go.
Especially when the rpms go up through the roof and pop goes the weazel😂
@@Sassenhaim you know as soon as he comes off the trottle. I raced Formula A, ICA KF2 and KZ. Been in this situation many times
@@kevin_sull2323 aah 😁explains a lot 👍🏻
I'm more of a tinkerer myself.
Not every engine is the same and parts need to be made to spec.
An engine doesn't like constant changing rpms and gearing.
In leyman terms it's like grabbing a piece of iron and constantly bending the strip up and down (like shifting gears) till it snaps.
Whilst an engine like to run at a certain rpm(constant strain) , like it states in the owner manual: 185 HP at 2700 rpm.
That's the best rpm to keep your engine at for the most power(which you often don't need in regular traffic).
But the physics are the same for a high spec engine, I guessed 😂
Only in a race you go max and that could result in a catastrophic failure.
No strain, no gain 😜
@@Sassenhaim
Sounds boring, much rather kill the odd engine whilst beating the shit out of it
agreed
Damn this guy is fast, running 104 kph. 1:37
Hahahah no he is bad asf
@@rocky_h4627 I’d like to see you race a 100cc kart
@@Mr_Chicha56even though he was on cold Tyres he was still slow asl
@@rmani9924his engine was running lean and it even seized bruh he'd be much faster with a good kart
@@Morbpioushis kart is good he just doesn't know how to set the carb
You could hear from the start the carb settings were wrong.
Yeah, was running lean I expect. Didn't help that it looked like fresh Spring morning so the cold air would have been even denser too.
Agreed
@@nickmaclachlan5178 must've got hot
Too rich
@@Kandyraton Running rich doesn't cause high temps like running lean does..... especially in a two stroke. It causes excess smoke and fouling issues, but unlike a four stroke it won't wash down the pistons and rings cos the oil is premixed in the fuel.....
The engine already sounded like it was going to die from the beginning
😂
You could definitely tell the jetting was wrong by the sound. Lean, caused it to seize. Not sure how the temp is read on these, but in my VLR 100 I religiously watch the EGT to make sure it isn’t exceeding 1200.
Yeah. On my VLR it used to be believed running at 1300 was okay. The motor blew up. 😂
Most series that run these don't allow a temp sensor but, if you do use one, it'll usually be an under-plug sensor. You can obviously weld in an EGT if you want though. Can't tell you much more, I don't use one...
Many years ago we used to have the same problem with Rotax motors; just as you take your foot off the gas the engine seizes. After taking the motor apart each time we discovered the gudgeon pin had fallen out. Tried different circlips and the problem stopped.
Short-throw dipsticks cause aeration over .5G, which you can achieve rolling an office chair over the floor. A kanooter bypass valve is a MUST to relieve EGR pressure in a Rotax cart with a short-throw dipstick mod, especially if the airconditioner is running. But if one is built right, they can be cogged to run shortcourse specific, or to have topend speed up to 160mph @ 26,482rpm on a course like VIR. The rev limiter is set at 26,500 and it's not a soft-touch system, it just suddenly cuts all fuel for a few seconds, which is uncool when you have carts closing behind you and it's like you suddenly dropped anchors onto the pavement. Thankfully, at that speed, any crushing of the fuel tank causes it to spray backwards, and the vaportrail flows right over the tailpipe and ignites like a James Bond gadget. You'd think that would deter kart tailgaiting, but for the most part, the guys are willing to risk the burns for the thrill of the sport.
AIR LEAK
When you read all the other advice, just remember this about 2 strokes. It doesn't matter if the piston is cast aluminum and the bore is iron, or etc.
1) tune the carbs perfectly - pilot jet, midrange jet, main jet
2) run through the entire RPM range then pull the spark plug and make sure it's not too lean - you should know what a proper spark plug looks like if the carbs are tuned correctly
3) and STILL, if a small air leak develops, even if 1) and 2) are correct, the air leak will kill the engine
There are lots of reasons why an air leak (which instantly leans out the mixture by suddenly adding too much air to the fuel-air mixture) can happen INTERMITTENTLY (heat, vibration, etc) but CHECK THE INTAKE MANIFOLD and anywhere else on the intake side of ANY 2-stroke engine for cracks etc.
We use starter spray (such as "Blaster Starter Fluid 11 Oz Fast Acting Engine Spray Start in Extreme Weather") and spray it around the intake side of the engine:
- when the engine is cold
- when the engine is warm
- when the engine is hot
If you are CAREFUL and JUDICIOUS and use a minimum amount of starter fluid spray, and control its dispersion, listen for the RPMs to climb.
The RPMs should NOT climb if the intake side of your engine is air-tight (ie. no outside air gets in except through the air filter). If you hear the RPMs climb under different temp conditions when testing with starter spray, you may have an air leak.
My background is with 2-stroke motorcycle engines and those freaking air leaks suck, and are unhealthy for the engine. You can troubleshoot air leaks with starter fluid spray as above. If you replace all the intake parts, you must still check for air leaks with starter fluid spray. Good luck!
.
Got hit by the red shell
At least he didn’t spin out on any banana peels or get nailed by a turtle shell
Back around 1970 I had a mini bike with a Hodaka 100cc 2 stroke motorcycle engine. I remembering day I was driving down a road and the engine suddenly seized locking up the back tire. I waited about 20 minutes and once the engine cooled down I was able to start it back up and drive away like nothing happened! Guessing at a minimum it probably scored the cylinder wall up pretty good.
Need bigger ring gap
That sucks but damn you did well to keep it on the track when the rears locked up.
So that's why I see karters cover the air filter on long straights. To stop this from happening.
on the sraight lines you cover before corner to choke the carb, just a tap is fine
each time I watch these carts, I want to fit a gearbox and ratios to them... :/
The “enduro” class runs a giant gear and a tuneable exhaust . (On the fly). 100 cc in 1983 we’ll over 100mph at places like Daytona, taladegha, (sp), road Atlanta, rocking ham. Etc... it took some time to get up to speed but they would fly..
search kz-2 karts
One engine more walking to the heaven of the engines.
The graphics on this are sweet, what software are you running?
Gopro telemetry
Think he might be playing kartkraft
wow. everyone says this now dont they..... 🙄🙄🙄
Aw man, this is why I always add a little more oil to my premix just in case xD
Don't think that would have helped..... thing was running way lean and melted itself.
It wouldn’t work.
@@nickmaclachlan5178 ahh, needed more fuel. That's his own jet tunings fault then, trying to eek out that last 250 rpm when he should've made it richer
Are these karts on premix or some sort of onboard mixing. You can buy an oil squirter set to mist oil into the bore and case at no throttle or full throttle.
Unfortunately a highly tuned two stroke would be more likely to see if you make the pre-mix too oily. It effectively makes the carburation leaner.
Carb settings not right, easy to hear.
Also if you are running fuel with ethanol, and did not change the membrans in the carb. If they go bad, nothing you can do..
It happened to me about a month ago, it was painful to hear my 125cc honda engine break, first I starting losing power, then the engine died just before the pitlane entrance (that was lucky), then I saw my piston and ring absolutely gone 😔
You can hear its not right so why did you gun it??? Slowly warm her up over 2-3 laps. This is just engine abuse
Props to you guys who can ride these things. I can't even ride the one at pole position without eating 50 ginger candies so my stomach doesn't explode.
Anytime you get stuck like that on track make sure to wave your arms in the air like crazy to let other drivers no there is a problem then get out quick.
That’s kinda scared me knowing other drivers were coming.
I wouldn't pay much attention to the comments about the jetting because the engine was cold and there is no way of telling. But because of the same reason, you shouldn't be pushing so hard... warm up the engine for a couple of laps before revving so high or warm it up before practice so you don't lose track time. Your engine will certainly last longer.
If it was properly jetted it should be smoking and burbling rich before it gets any heat in the head.
Too bad for you. Nice controlled stop you did.
thanks for the video, take care.
HENDRYK GOES NYOOM, ENGINE GOES KABOOM
🤯
I would LOVE to give that a go.
That died harder than Hans Gruber splatting on the Nakatomi plaza floor.
Back in the early 70's, when I was racing in Japan (Okinawa), I had the same thing happen at about 50 MPH. . .not a very good feeling. It was a new Yamaha KT100, cleaned it up and was racing again the next weekend
Jesus Christ, 50 mph has never felt so fast! 50 mph in a car feels like you could almost open the door and get out and walk. It's nuts how different it feels.
Guess its kinda different with your butt a few centimetres from the ground and lack of suspension ect
my favorite form of speed is on a jetski. 25 mph and everything feels like it's flying by you at 80mph
Indeed! 50 in a kart feels like 100 in a car. After a day of wrestling my Birel around, my GTi felt like a shopping cart.
Seems most have answered your question it sounded like it went lean. I had the same thing happen to me just didn't get to the jet adjustment quick enough. Sorry that this happened.
Definitely the deflection dynamic not working properly, paired with a not properly adjusted ring antagonizer. Need some more in the garage.
it hurts, going out full throttle with only 33 degrees on march, you need to warm up before going high rpm, the worst moment for a engine is when you release the throttle at high rpm because you release also lubrication (the oil is mixed with petrol), doing like this with the engine cold probably become in seize
Those things look like little giggle factories.
Finally! I heard the “Earp!” of seizure.
Sounds like he might want more main jet and more oil, too - as well as a power jet. Ran wide open at high revs for a long period, so he’d flushed all the oil in the cases, then closed the throttle - “Earp!” Stuck.
No Michael no that was so not right!!
Must set jets carefully while looking at RPMS in small sessions.
I learned this with my twin head SeaDoo PWC.
Er ist Fest gegangen weil du denn luffi nicht zugehalten hast du musst immer ca 1sec bevor du bremst ein loch zuhalten (aber weiter vollgas damit der motor gespühlt wird) wenn du über 17k drehst da der motor schmirung benötigt wenn er so hoch dreht damit er überhaupt sohoch dreht musst du aber auch relative mager bedüsen und drehe den motor maximal bis 22k sonst geht er auch kaputt. Für hobby ist es besser denn motor bis maximal 18k zu drehen da du dann denn kolben auch mal 20-30h drinne lassen kannst
Was that a bmw s25 engine with rod bearing issues? 😆
By the sound of it, the side of the piston seized (not the top). My guess would be either lack of lubrication (bad premix) or the main jet was too small. Good luck sorting it out!
edit: if the piston or cylinder was recently replaced, and this is the first test in such conditions (air and engine temperature), maybe the piston was just a tiny bit larger than optimal and the heat expansion caused it to seize.
Back in the ica/formula a days to be competitive you would have to run these engines so lean they would only last one race and you had to cover the airbox to keep the piston cool. I knew guys that would turn up to meetings with 6 engines and they all got rebuilt after. Great era the 100cc direct drive.
@@rossy2998 that must have been an expensive day out
Kanooter valves, guys.
Kanooter valves. SMH.
When you started running I was hoping you were going to steal another one
in italy "hai grippato, hai sbiellato" ! lol
Good thing the marshals were on the scene quick
I can visualise the legendary Michael Schumacher in a go-kart, blasting everyone else... #keepfightingMichael...
Le bruit à bas régime (roulement de tambour) indique un mauvais réglage de la carburation. Je suppose que c'est un carburateur à membranes avec 2 vis pour le bas et haut régime. Personnellement j'avais un Walbro, je fixais le réglage bas régime et je réglais le haut régime en roulant, avec le temps on comprend comprend régler. Mélange avec de l' huile au ricin 6% et penser à mettre la main sur la boite à air sur en fin de ligne droite pour graisser le moteur.
"We have to retire the kart. Pull over and stop near a fire marshall. P1 for 5 seconds then P0. Treat the kart as unsafe."
You didn't do any warm up - straight to high speed. You need to warm the engine first to allow clearances between piston and bore to balance themselves out. Also, when on such a long high speed section followed by braking you need to choke the engine with you hand to ensure the cylinder has fuel/lubrication
He held that lockup nicely tho
I think I heard spark knock a couple of corners before the seize
....thats why Humankind invented 4 strokes.
Two stroke was invented after...why do 4 when you can get away with 2...well...sometimes
@@studog7851 2 strokes, because 1 is not enough and 3 is too many.
Bro your steering wheel is upside down😂
Carb setting was way off, you can easily hear it.
All the manufacturers ever had to do for hobbyists is take the direct drive 100cc air cooled engines and up them to 125cc and detune them slightly so they offer the same performance with much higher reliability.
Instead they chose to switch to Touch and Go bull so that they keep making tons of money off batteries and clutches without even offering an option for a direct drive 125cc.
Seeing as they were killing karting for hobbyists they came up with the OK engine, should have gone with that from the start,manufacturer greed has ruined the sport for me.
At least it didn’t happen during a corner/turn.
Rich on bottom & lean on top.
I seized up my rd350 4 times on the way to work 30 years ago waited 10 mins each time and it started up couldn’t kill it
If you ain’t first, you’re last!
You could here going pit out, the engine wasnt ready yet.. it didnt sound right
What happened, it was nearly hypnotic then dead silence... It seized, or broke? I didn't hear anything. Fuel mix?
Bro are you making a joke cuz if you think it sounded fine then just stay away from karting
@@Willy_Wanka People can't enjoy karting without understanding mechanics, that's a new one.
It sounded like a cement mixer from the very start.
Cold engine + Very High Rev + Bad Oil or mix + lifting a little bit the gas pedal --> seize
I use to race old bike, the rule is never go 90% throttle after a long 100% throttle (what you've done here). Release gas at 0% and brake
And you should also look the setup of the air/fuel ration , cause the mixture is not good on low rev med gas/
Sounds like the grippen valve was over extending causing the crutch pin to dry up the warbler cage.
No more warbling after that happens😂😂
Mine did the same thing. I was racing a dirt oval and for the three laps before it blew it was the fastest it had ever been. I shoulda known it was coming. I just thought I had it dialed that day. Nope!
What shutterspeed are you using? Would be interesting to see this at 25fps with 50th/s shutterspeed for more motion blur and sense of speed.
derpderpderp
Yeah that didn't sound right the whole time. Forget your 2 stroke mix?
Every race video I watch, I have to take a moment to figure out if it’s real or a sim.
I know this is real but it still takes a few seconds.
oh my god I thought this was a video game until he got out of the kart wth
I had a ktm 125 lock up on me in 6th gear on a road.It was my boys bike so I'm not sure about maintenance but man I got banged up.Nothing broken but I had road rash all over my body and was wrapped up like a mummy for a few week's.The first car driving by happened to be a cop and called an ambulance.Got some fines too so it sucked all around.
Yo man, cover up that air filter with your hand on the long straights so you can look like Senna! Helps lube the motor and gives you an extra kick like VTEC outta the corner! Don't forget the butt scoot as well. Ya'll know wassup!
Loll. I’m ready to race against him anytime with my 10 speed bicycle.
There isn’t a cloud in the sky it’s a post frontal high-pressure day.
Well held!
Slipper clutch would have made the situation slightly better.
I run Amsoil Saber Synthetic in everything I own. They will guarantee any engine you run it in up to 200:1(!!) and have ran their tests as lean as 400:1 with no damage whatsoever. My brother has a 50+ customer lawn care service and at 75:1 he is using about one-third the amount that he used to run over the course of a season. Tanakas & Stihls cant get enough of it. As his primary mechanic I will add that the operating temps are a bit lower that the old Dino-based garbage oil he used to run
It work take a miracle for any oil at that ratio to suit this kind of scenario. Peak RPMs approaching 21,000 RPM with a power output approaching 300hp/l leading to extremely high localized temps.
@thiswillprobhrt It's your call. It's your seized paper weights. It is honestly a no brainer
@thiswillprobhrt Plus, run the ratio of your choice up to 200:1; start out at the 10:1 you I am inferring that you think your engine needs; unless you have money to burn and more dollars than sense
@@doctorcountersteer6580 you want to talk about "more dollars than sense".... pistons and lost races cost a lot more than oil.
We're not talking about a chainsaw or lawn equipment... This is a high output racing application
From Amsoil's own materials it's for " handheld two-stroke equipment using other oil"
ie, consumer products, not racing and not high output.
@thiswillprobhrt So your POS oil appears to have failed; what have you got to lose? If you were that pressed why are you not having yours analyzed?Listen, if the 'Browns can pull off a punt, even before Flacco came along, why not? Some of us men have it ALL figured out and are reluctant to try anything new ( especially ME ). You gonna tell me your mill runs any hotter than 6k for 8 hr days like my Tanaka weed eater, for like 14 years as of next season? Just bc you are guaranteed to make a millionaire out of a race car driver by starting with 2 million doesn't mean it has to be YOU! You can't be afraid to take risks if you are a driver or you will lose.
Krazy graphics!
Zed's dead. Zed's dead, baby.
That thing never sounded right right out of the pits.
your steering wheel seems to be upside down friend
Definitely didnt sound wuite right from the outset, bet your glad it happened in a straght line😅
Engine: nah im good
here did u put the magnetic sensor of ur alfano ?
Nice track!
2 strokes arent meant for steady high rpm runs
His steering wheel looks like it's upside down.
Why bother showing the telemetry if it's all wrong
Nice track. Of course not in the USA.
WHERE WAS THIS TRACK?
Not a happy engine from the beginning and geared way too short by the sound of it 👀
Are karts automatic ?
They don't have any adjustable gears, either auto or manual.
No pop pop when not accelerating means your carburator is set extremely wrong
1:04 Your welcome
You're welcome, you're welcome.
36 degrees on a 2stroke on the engine.. never good
. amazing - just amazing ^ bt + bad timing
Coulda been worse
Liquid cooled 100cc?
Yea looks to have a little radiator.
From running it too lean?
Poor thing was hurting the entire time. Way too lean. You want to run a 2 stroke rich.
Think the speedo needs to catch up
You can walk at 104 km/h?
High mix!!
Resolution?
104 kph
What camera do you use??
I use the GoPro Hero 5
Kann man in diser kartbahn einen Rennkart leihen?