I Give Up...Yamaha Ysr 50 Is UNFIXABLE!

[@2vintage]

Please SUBSCRIBE and SHARE the video if you enjoyed! Check out www.Laptwo.com for car/truck, motorcycle, dirt bike, and scooter parts! My Instagram and TikTok is: 2_vintage_ Thanks for watching and subscribing!

[@ryanhill97]

2vintage Keep up the good work on the videos, when I saw your videos I subscribed .👍

[@2vintage]

@@ryanhill97 thanks!

[@chanceylowery5403]

I'm subbed got the bell liked most videos and I follow you on ig

[@2vintage]

@@chanceylowery5403 wow thanks!

[@chanceylowery5403]

@2vintage wouldn't mind doing a colab but I'm in carolina

[@PiazzaWoodWorks]

Try Swap the whole stator assembly, windings could be shorting

[@MattySlimz]

Agreed. My ignition wasn’t making a complete circuit once.

[@gunclemac2729]

It may be the armature as much as the field

[@ricerneon399]

Make sure it's not a cold air leak. It could be sucking air past the crank seals. Mabey check those out

[@2vintage]

Yeah that's the next check

[@dannyarmstrong7659]

Many people have told you to invest in a leak tester. That is most likely the issue with this bike. Why do you keep refusing to invest in leak testing, its the 1st thing you should always do when you pick up a new bike. 2 strokes will never run right if they have a leak. Leak test, leak test, leak test. It is extremely important to the health of a 2 stroke and easy to do.

[@mototommy5525]

@@dannyarmstrong7659 he also refuses to buy an auxiliary fuel tank instead of filling the carb with a jug like a twat not even giving the carbs proper flow rate

[@OldestYoungenInGuidePost]

moto tommy And the jug is filthy😳 I've left a comment with a link to where he can buy one from twice now🤷🏻‍♂️ it's a great thing to have 🤷🏻‍♂️🤷🏻‍♂️

[@rollafatonedude]

@@dannyarmstrong7659 but he does the hand compression test all is good

[@ghpjerry]

I'm sorry this isn't working out for you, take a Small Engine Repair Class like I've told you for 3 yrs. Anyway, being funny but thrithful...the best sound coming from all your videos are the gun shots behind you in this one, not some "Minty" bike that barely starts. We know you live rural, beautiful place to live!

[@joemumma5058]

It's going to be a spark timing issue. But by the looks of the head, it's seems is been grenaded and has achieved detonation as you can see by the indentations and pitting around spark plug whole.

[@gunclemac2729]

Motorcycles dont have "timing" . It is, what it is, unless its an electronic ignition, tjen you reprogram, not adjust

[@staygold902]

@@gunclemac2729 apparently you've never adjusted a stator plate before. You can advance and retard timing by turning the plate 100%

[@gunclemac2729]

@@staygold902I miswrote, if you look i say reprogram, not adjust, meaning that it is adjustable. Not in the sense that you can take a timing light and use it to set your timing. Yes, they usually have some sort of cam system to open and close the points and you can loosen the plate and change when the points open for spark and close for exaust/power (2stroke, make necessary changes if you want it to be a four stroke in your head) you can't have the engine running while you adjust the timing. You move it, start it, listen to it, until you get it as close as you can and that's about it. There is no adjusting while reving, and or idling to see exactly what the best timing is while it's running. You set it, and that's it, there really is no timing to adjust while it's running. It is what it is.

[@staygold902]

@@gunclemac2729 no you certainly can't have it running while adjusting but it is adjustable

[@Nfl..prodzz]

Not gonna lie it’s kind of nice to see some positivity in the comments for once. I’m sure it’s not a good feeling to spent several days of your life on a video and have so much criticism, but it’s good to see that you kept working hard nevertheless. By the way I know someone who had a lt250 that did the same thing he tried everything he could. Then once he got down to the carburetor he sold it. Might’ve been a fairly easy carb clean but I guess we’ll never know.

[@americanbassin2648]

Someone’s having fun in the back round lol

[@gerryh1746]

Lets think...It was used as a clown bike in a parade, probably driving in circles for miles flexing the wires more than a normal riding situation. It's been my experience with something this frustrating my guess would be a broken wire within the insulation. Take your multimeter and check for continuity from one end of each wire to the other and wiggle the wire to see if there is a internal break. Electrical wires, kill switch wires, everything. Good luck.

[@jeffferguson899]

that cylinder head combustion chamber looked pretty rough, like a piece of the piston ring was bouncing around in there .

[@andrewb232]

try a compression test one of my 2 strokes did the same thing i thought it was something completely different but it ended up just being worn out rings

[@leighrichards9111]

If man made it! man can fix it!

[@wd-40everything65]

I like your way of thinking!

[@leighrichards9111]

Im From the uk. grandad was in RAF I've heard it all my life

[@leighrichards9111]

Also check the flywheel hasnt spun on woodruff key

[@wd-40everything65]

Can I put my own twist on it? If man can Break it man can Fix it! American version! lol😂😂😂

[@wd-40everything65]

Don't throw in the towel already just swap out the stator and if crank seals are a concern you can replace them on this particular model without splitting the cases.

[@sethpayton9578]

Try the stators

[@sandmanbub]

Clean every pin of every connector, sand or wire brush all contacting surfaces of electrical components where they contact the frame and or engine, clean the frame where they contact it and check the resistance of your kill switch etc. Check and clean every possible source of resistance. It really does sound like the spark in being blown out at upper revs. Is the piston on the rod in the correct direction?

[@Yellowbasterd]

Main fuse , the keyswitch , kill switch or even headlights is a must for safety issue back in the day

[@jonjonjujon]

even if it a worn engine it should still run, so check for air leak on barrel and around intake, also base and crankcase joint, also look to see if someone tried to do port modifications, good luck,dont give up yet.

[@jimmydean5876]

Did you do a leak down test bad bottom end would do that

[@rollafatonedude]

he wouldnt have a clue how too

[@beev2123]

@@rollafatonedude lolol aye

[@just_in_time5518]

ben hall i sure there is a video on how to do it somewhere out there . Like maybe KZbin 🤷🏼‍♂️🤣

[@gunclemac2729]

Yeah, everytime my car, motorcycle, and tractor sputters, i know its the crank case, because i overheard someone talk about it once

[@matthewgrigg576]

Every thing you buy is clapped.

[@5tevenH]

NOTHING is beyond repair

[@ightbet808]

Except ford...

[@dicklong5381]

Ight Bet 😂😂😂

[@enginesandoutdoors3238]

What if my engine got so hot all the components melted into a puddle

[@jaimeheredia6738]

Twin towers

[@5tevenH]

@@enginesandoutdoors3238 then you would replace the engine. Vehicle is still fixed!

[@Hanky_Bannist8r]

Air leak from the crank seals or blockage from the oil pump that mixes the fuel. My guess is the oil pump only because it's still smoking and if it was the crank seals it'd be running lean. Clear the pump and lines, refill the tank with good oil who knows how long and what was used.

[@desertghost5273]

Possibly a bad pick up coil on stator assembly. Id swap stators just to rule that out.

[@VeshraineCreates]

Is it jetted to your elevation? Is it timed and gapped properly? Did you check compression? Is it shorting to ground? Did you check your kill switch and ignition wiring for false grounds?

[@robsmith1752]

Make sure all the connections are cleaned and seated as well as the pins and check the base gasket

[@jes.8314]

The tougher the find .. the. Best experience.. more it can help others with the same problem... And maybe more views on Y.T.

[@matthewg174]

Put new everything on it and I want that sick 2 stroke white and red motorcycle I forgot what it's called but awesome vid!!! Keep uploading :) Edit: if a kick start is hard would it mean it has low compression?!?!? Cuz me and my dad keeps kicking it and it doesn't want to start

[@liammeloury-caligiuri6272]

Does it sound like it wants to start?

[@2strokemxclassics]

No it should be much easy to push down with low compression

[@exoticg9]

I had a similar problem once, it was the exhaust clogged up inside, try swapping exhausts to see if it runs better !

[@stevemelior1819]

It is most likely the crankshaft seals on ysr 50 making it run bad. I had Suzuki with the same Simpsons. I replaced the seal's and it cured the problem

[@lbdrummer3]

That head looked like chunks of a piston got dinged around a bit. My guess is blow crank seals after the last owner let the engine eat itself. Good luck.

[@tylerthomas3744]

Process of elimination. You changed the carburetor, cdi, coil, reeds looked good you know it's not a fuel issue. The woodruff key may have spun causing the timing to be off or you may have a bad stator.

[@MatFlyinFoolHarris]

Spark, gas and compression...with those three things a 2 stroke engine will run. If it's sucking air anywhere on the crankcase it'll fast idle. Thing sucks about all these 2 strokes is there's other things like vapor lock...won't run, clogged exhaust...won't run, or it'll run badly, could be old wiring, i.e., spark plug lead, cracked insulation on battery lines. For all you know that bike hasn't been properly maintained in years...or even decades...

[@junkermx7362]

Dude I've been buying and selling bikes for years.. Best advise for paint and take it.. brake fluid try it even google it works and dont f plastic up

[@isaacfinneyoutdoors411]

The head looked pretty nasty that motor has grenaded before

[@niney255]

No it didn’t just build up

[@isaacfinneyoutdoors411]

@@niney255 you can see on the top of the head the indents of metal fragments jammed into the head

[@damean8451]

Try swapping batteries. My battery ran out of water and was creating a short and not letting the stator produce enough power for the spark plug. Also check the every single connection on the wire harness. Even if the connection clipped together properly it might not let power through if the terminals have corrosion inside. Also, swap the spark plugs wire. Sometimes when they get old they get brittle inside and lose connection at certain RPM.

[@Dicairem]

That bike isn’t missing a kick starter. It’s missing the compression tester

[@mattwatkins7333]

Sounds to me like a bad seal inside,,but keep at it,I’m sure you can get it done,,it’s bloody good got the other ysr to try switching parts

[@josephoakes3697]

Check all the ground cables on the bike, maybe since they painted it its not grounding off due to the paint!

[@n2vxc]

Yah rev the rings right out of it lol

[@ronnielamb5958]

I had this problem!! its got low compression .i bought a 1987 yz 80 i banged my head off the wall tryin to figure it out an i did the top end an it ran mint

[@haigpogharian2145]

Same thing with me. It definitely has low compression

[@raywalsh5822]

the spark is going off from stator on flywheel.if u can get a manual.check resistance on stator windings .

[@mattgyver1]

Hit it with some good starting fluid while turning it over with a drill. If it hits and runs a few seconds it might still be a carb issue. It seems like it’s not getting good fuel from just the fuel line.

[@cameroncassel994]

Rings might be stuck, had that happen with a Yamaha 125. Ran about the same, popped out the rings and put new ones in and it ran perfect.

[@adamweston4152]

Put New points in it and a new condenser and a new HT lead,2 strokes will splutter like mad if the choke is still on so check that too,it was running before so back track what you have done to it and maybe you will have some luck with it.another thing to check is the wiring inside the headlight.look for scotch clips as they are notoriously bad connectors.

[@joegreene777]

Didn't think to swap out the kickstarter?!......😂😂😂

[@dougadkins2573]

Permatex paint stripper. Safe on plastics. You can pick it up at Napa. I use it all the time.

[@rosh3918]

it may sound simple but check the grounding connections !i had the same problem and it was a simple wire on my kx

[@justinblanck5287]

Check the woodruff key and the key ways both on the engine and flywheel.

[@joshf8633]

Change your stator plate or check breather hoses cos they could be blocked or check your manifold boot it could have a pen size whole

[@MegaMrbrandon123]

Could be the battery. I know that the Yamaha ttr 230s run like crap if you have a bad battery. I know it sounds stupid but it's worth swapping the batteries

[@just_in_time5518]

I would check the points and make sure again it’s timed properly😎

[@finster7582]

Once again-KISS. Keep it simple stupid! Compression check. If thats good, start from beginning..battery, ignition switch ,kill switch, sigmals, brake lights, etc etc for electrical and spark. Then move onto fuel delivery system- clean tank, blow out lines, premix, oil injector, air filter etc etc etc...go slow, take ur time and the bike will HAFTA run...😆👍👍👍👍👍👍👍👍

[@slickfoxxx160]

I had a ysr 80 and I rebuilt the top end and it fixed this problem

[@michaeldixon6619]

Put all the green bikes stuff into red and white if works. Crank bearings and seals are gone. My Yamaha dt50lc did the same.

[@jeffferguson899]

swap the ysr engines and see if that makes the green one run better :)

[@briancrull8678]

Alright ... broken kickstarter is a clue that someone else had issues . And that crazy mess on the exhaust flange .. Something inside that simple rotating mass is broken ,worn ,stuck or missing . Seals . Base gasket and piston rings are about all that is left to look into . Pressure inside that engine is messed up !

[@5mracing281]

Probably got an air leak

[@jamiecollins2117]

just put the green plastics on the white one n it will be fixed

[@jakeniewold3094]

Very common for crank seals, compression test done?

[@Bandito071]

Old mate doesnt bat an eyelid at the apparant gun siege going on in the next street !!

[@wouldyouglowme4235]

Never give up unless you want to

[@2strokemxclassics]

Why not put the full running engine into the non runner and leave stator left on it then you can eliminate a lot by doing it that way, would take 30 mins to swap,eg if the runner engine doesn't run in the green one its the wiring

[@Dicairem]

Why does he always ignore a simple compressions test and a leak down test? Actually hooking up a fuel tank is also a smart idea.

[@mattwatkins7333]

Eliminate few things ii would say,,timing ,air leak,throw some petrol down the plug hole,heat the plug up on a cooker hob,,if it sounds better,might be rings or sumin,,comp test,,it pisses u off when bikes go like this,,maybe run new main earth line,Hope u get in done

[@5mracing281]

There also might be a gouge in the block on the cylinder wall

[@TheTojocat]

Some great trouble shooting on that little bike, you checked and tested alot! you have got a tough one there, i would guess a leak in the crank somewhere which prob would not be worth repairing on that bike seeing how it has no title. It may sound crazy but did you try swapping the battery? could be too low voltage, the stator output was lower on the green ysr which could possibly be the battery. Its an easy swap.

[@jeremyjablonski797]

a cracked piston on the intake side would do that call The Jug off and check it out brother or crack the ring

[@jman1264]

carburetor, dude when you were rolling it around it wasn't even starting could be the timing or like compression. seems like its miss firing...wait a minute the gas tank isn't even on. maybe the engine is blown up idk. sounds like a 4 stroke

[@OldestYoungenInGuidePost]

jman 126 His auxiliary fuel tank is 1&1/2 foot bit of tubing 🤦🏻‍♂️🤣🤣🤣 I've commented twice telling him to get an Auxiliary fuel tank 🤷🏻‍♂️

[@gunclemac2729]

Motorcycles dont have "timing, it is what it is, unless its all electronic, in which case you use a computer to adjust the ignition

[@gunclemac2729]

I usually start with the simplest thing, then on to the toughest. I agree, getting a fuel supply to the carb is the first thing, tjere could be air trapped and no fuel getting into the carb, wait, its a leaking crank case without any oil leaks, its always a leaking crank. Oh, i forgot, get oxy-acetylene torch, and crank up the gas 100% and if the engine blows a push rod you know its bad timing

[@gunclemac2729]

@@OldestYoungenInGuidePost he'll learn the hard way, with wasted time, and buying the wrong parts ect. He seems to have a higher than thou attitude, which will cost him in his most precious resource, time

[@restoredmoto1645]

The fact that you can push that thing while its in gear and it is easy as you're pushing it obviously shows low compression. Test it.

[@MAD450r2]

Not posative on those ysrs. But could be crank seals. I seen a derbi gpr 2 stroke 50cc bike did that samething. Rebuild everything and it ran fine after.

[@XeClassified]

Throw a new top end in. Have you tested compression?

[@rigguyjt]

You didn't try the ignition switch? It could also possibly be a wire grounding a little on the frame.

[@gunclemac2729]

1st off, get rid of that stupid little pitcher, its just plain old lazy! If you have air in there and it doesn't go all the way through, your float bowl won't fill up either. There are whole myriad of things that could going wrong with filling up that stupid thing with a pitcher. Now that the tank is clean, full, the peacock is on, and you've tested it for fuel flow. Check your float bowl settings, that can cause your engine to run and die. If you dont know them, look them up! Their is never any shame in learning and double checking, the shame is not learning and being unknowledgeable the rest of your life. Next physically run something through your jets, a torch tip cleaner is best, but dill bits the same size will work too. Check the air fuel mixture, thats the fine adjustment, the course adjustment is swapping the jets themselves. Make sure the cable from the handgrip from the twist throttle to the carb is set. Next check the reed valves are closed and sealed completely. If there's daylight, they are no good, which i think i saw, but couldn't tell from the video. Also, show the sparkplug each time you swap it out. That's so important when diagnosing engine problems. It will tell you about rings, fuel, exhaust, spark, it will give you a huge clue on where to look. If its still not running, leave the gas tank on. Check for flow after each step. Spark, if a module goes bad, it fails 100%, not run a bit and stop. Look at the magneto. The field or the armature may be on the way out. Check the magnets, make sure they are clean. Sorry, before all that, check for compression. After that is dealt with, throw it in the trash. With the tank on!. A big key you might be missing is fuel! If your carb isn't full of fuel it will not run right. Look up how to set the floats on that machine. I have a feeling that is where your problem lies. If you don't have a tank on that bike, i will do my best to stop you from ever getting advice from the actual mechanics that give suggestions on this channel. That is such a huge waste of time for us! I gave you a step by step manual on how to fix that bike. If it still doesn't run, I'm about out of ideas. Maybe we'll discover something in the next video!

[@gunclemac2729]

I of course won't send out mass emails to get small engine mechanics to boycott helping you out on your videos. Its a choice that they need to make unaided. I was just trying to stress that the habit you have of filling up just the carb with the little pitcher can be a problem in itself, and can be a waste of time for you, you being the most important party. None of us really matter, after we go off, someone will be right behind us to fill our spot. Using the little pitcher can be a useful tool! However, it can cause the problems i had said in my previous comment. Know when to use it, and when not to. After that was just a basic rundown of things to check. Many you've done already, but which should be checked again. I digress. Thanks for the highlight, and no hard feelings. I've given you a rough time in the past, which i apologize for. It's kind of my m.o. Give the person a rough time, then at a point, be nice to them, congratulations! You've made it past my defenses! Usually permanently

[@DannyNelson-l8r]

Check to see if your on off switch isn’t grounding out . A short can cause that problem.

[@mccranahan747]

A ysr with a yz125 or 250 engine would be cool

[@bendoriot7069]

Switch the green ysr’s dg exhaust over to the good running one

[@xRamRacing]

Stock ones worth more

[@haydencarter2313]

Wouldn't mind seeing some 125s shredding

[@josuemurillocalvo4511]

Adjust the reed valve It should be so tight and that sounds a lot like that

[@jsfilms7876]

I've wanted a ysy ever since I started getting into street bikes, im 12

[@ReanuBeeves]

More like 1200 (anyone who gets what movie shall be my friend)

[@demekamitchell8338]

Did you check the stator and also did you replace the piston or ring or check the piston and rings aslo check cylinder wall see what condition it is in

[@Kyle-su4il]

Your multimeter is set to AC click it round to DC the solid line with a dashed line below it

[@Kyle-su4il]

Also disconnect all the lights etc make sure one of those isn't going to ground causing issues with spark

[@kacperburzak1610]

To me it sounds like not enough fuel maybe try and put on the gas tank on the green one maybe the little fuel you give it is not enough? And take of the air filter and then try and run it but try not to get any dirt inside. And if that does not work do a leak down test👌👌

[@anthonyguerrera6572]

When you took the top end off I noticed some markings on the top end. Looks like something (rings) broke off and was beating the top end. I would take it off and inspect the piston. I bet the problem is there. It has very low compression

[@nikkarapittides5784]

Did you richen the fuel/air mixture, if you haven't try that out then and also check for air leaks and if that doesn't work maybe rebuild the top end

[@ricerneon399]

Also make sure the battery has good connections and is charged they don't run right without them

[@2vintage]

My other one runs without a good charge.

[@ricerneon399]

Alright then that's out of the picture

[@tommyhijmensen6257]

You shouldnt premix the gasoline ! Put only petrol in the tank ! An oil into the little tank !

[@carsonsalamon5191]

Electronic issue? I know this is far fetched but maybe piston is in backwards? Or crank seals? Good luck man.

[@Jonas-go8uf]

The Issue Could be the alternator

[@Dm-cr5lk]

Do a compression test. U can’t remove a head and use the same gasket unless it’s a metal gasket.

[@quickturn66]

Someone might have replaced the piston with a China one with no holes on the intake side. Look in the area where the reeds go there should be two holes in piston skirt.

[@allanmorton9478]

Gutting to watch it beat you like this so far but sometimes you cannot win them all mate

[@fishingwitheverett157]

this would probably be a big waste of time but you should a full rebuild on it :)

[@J_0ne-]

What’s the cylinder compression between the two bikes ?

[@anthonyp2544]

I had a yankee pedler I think it was...If I remember correctly it wouldnt run right if we had a wrong or blown tail light. It drove me and my dad nuts and we put a new bulb in it amd it ran fine.

[@night07train55]

Swap carbs for giggles and see what happens

[@bluewaffle9550]

Have you checked the intake manifold gasket ?if not I’d check that

[@Ευγενιοςχατζοπουλος]

i had the same issue i took the pipie out and i check my cdi to have good ground on the frame and finaly the points and it solve the issue

[@gunclemac2729]

I was right, wasn't I? You still had to check the components i told you would go completely out. Well, you'll learn

[@ethanrossmann579]

Timing could be off . So swap the stator with the other one off your other ysr50

[@taurienhill5355]

Is there like a plate behind the stator? If there is then see if the lines are lined up with the marks on the case

[@ethanb6276]

Might want to check what the rod is like could be the crank bearings.

[@rideredgethead2787]

I could be a stuck piston ring or something and having enough compression