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Seller Lied About This Low Compression Dirt Bike 

2vintage
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I buy a 2001 Yamaha yz125 dirt bike that lost all compression. let's rebuild it. #Yamaha, #Fix, #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.

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16 окт 2024

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Комментарии : 509   
@volvogt21
@volvogt21 11 месяцев назад
You deserve a medal for your positive attitude. I'd be throwing things
@fredberger2451
@fredberger2451 11 месяцев назад
He’s a smart guy that’s for sure.
@roybrookes9433
@roybrookes9433 11 месяцев назад
Ditto ! !
@tristanwilson5957
@tristanwilson5957 11 месяцев назад
very smart n patient
@memorris2
@memorris2 11 месяцев назад
I made the same comment on the last video when he had to pull the utv all apart again to fix the overheating issue.....he is always zen
@lamahazz1579
@lamahazz1579 11 месяцев назад
same 🤣🤣
@ianbratt9237
@ianbratt9237 11 месяцев назад
This is why I only have air cooled dirtbikes. No water pump, power valves, radiators, extra gaskets and just less things to go wrong and worry about. 1982 yz490 with a 465 top end, 1980 yz250, 1981 it175, 09 zuma yw50. Air cooled 2stroke bikes
@vet8787
@vet8787 11 месяцев назад
Cylinder O-ring groove looks like one side was “ melted” by weld . O-rings require support on both sides to seal as they crush and deform to seal . You are correct that you can get it built up by tig welding but then good chance it needs re-machining . Great work on your videos !
@Danman1972
@Danman1972 11 месяцев назад
Yep. ghetto fix would be the JB weld and shape it sand paper. . Proper way is to have it tig weld and machined flat.
@vet8787
@vet8787 11 месяцев назад
100% ……I was going to suggest that too …….it would work if prepped properly . Cheap for sure . I did a set of KX 250 engine cases on the bottom after a crank failure years ago ….still running years later .
@garyhightower8105
@garyhightower8105 11 месяцев назад
Yeah jb weld and let the o ring do the work while it's still soft. Ghetto as hell but right could get expensive.
@2stroketyson79
@2stroketyson79 11 месяцев назад
Yup! pretty sure thats why its bogging take off too has to be sucking air through there
@AJvsEverything
@AJvsEverything 11 месяцев назад
I was hoping someone mentioned this...also, I'm concerned that the crack that was welded might actually go through the water jacket beyond just the outside of the jug having been cracked, in which case there's no way to seal that back up if the water jacket is weeping directly into the crankcase...he's honestly better off just sourcing another jug and honing it like he did this one...
@bigcaputo09
@bigcaputo09 11 месяцев назад
Did you notice all the rust in the cooling system and the gears. They were using water and it froze and broke the cylinder. That's why it's welded in the first place.
@MPDano
@MPDano 11 месяцев назад
I like how you say "cris cross" pattern when tightening the head nuts and you tighten the nut right next to it. Lol. Super fun watching you get these machines working again.
@michi_danksta
@michi_danksta 11 месяцев назад
Those acorn nuts can be a issue if the cylinder studs aren't seated down properly.... add a few washers and see if head stops leaking. As for the cylinder I'd learn to tig weld.
@dominickserignese8837
@dominickserignese8837 11 месяцев назад
Is the jug cracked/ warped?
@mikespain8655
@mikespain8655 11 месяцев назад
Being able to weld is one thing, I have learned. Being able to TIG weld, have the welder, and very occasional need is another.
@foxlake6750
@foxlake6750 11 месяцев назад
I like the idea of the washers, the studs could have stretched, if they were over torqued in last rebuild.
@djantix1200
@djantix1200 11 месяцев назад
Tough break on that cylinder leak. Good on you for showing that not all bikes make money and there are always surprises when purchasing used bikes. Good attitude and hopefully you can break even.
@johnclancy9860
@johnclancy9860 11 месяцев назад
Joe, All of your videos are really good and informative. This one was one of the best on top end rebuilds. Thanks for all of your efforts on videos. Love the " land " racetrack and woods trails !
@itsnox7638
@itsnox7638 11 месяцев назад
The knowledge you have for fixing bikes is insane
@andrewsock1608
@andrewsock1608 11 месяцев назад
That weld on the cylinder is probably a high spot that is stopping the head from clamping down all the way.
@truvintage5800
@truvintage5800 8 месяцев назад
right, why so instead he sands down the head where there is no weld.
@williamstirton1814
@williamstirton1814 11 месяцев назад
The reason it is leaking is the o ring relies on the surface on the inside and the outside to be at the same height to hold pressure.
@mattiedoa4070
@mattiedoa4070 11 месяцев назад
Came here to say this it looks like there’s a chunk of head missing, if there’s no wall for the sell to push against it will just let it push passed
@brandosatyourservice7347
@brandosatyourservice7347 11 месяцев назад
Put some of the marine epoxy on the head leak. It works on cracked boat motors that were not winterized properly. And it's not flat where they welded it where the head meets the cylinder so the o-ring isn't sealing.
@DRZrider07
@DRZrider07 11 месяцев назад
I've never used grease on an air filter. I just sprayed filter oil inside and out and never had an issue with dirt getting by. My favorite filter was Uni.
@victorcoots3802
@victorcoots3802 11 месяцев назад
PUll the cylinder and get a black magic marker, color the top of the outer edge of the cylinder and then use the same glass you used to polish the head and look to see if there is a high spot or a low spot. If it is a high spot, keep the figure 8's going until you have uniform contact. I would nearly bet that you have a high spot on the cylinder where the weld was applied.
@bighomieJ5X
@bighomieJ5X 11 месяцев назад
Perfect timing, this company meeting is making me fall asleep 😴
@thebigguy8306
@thebigguy8306 11 месяцев назад
🤣🤣I'm watching on one screen while taking an online ethics test
@bighomieJ5X
@bighomieJ5X 11 месяцев назад
@@thebigguy8306 multitasking 😁
@boneheadfish7893
@boneheadfish7893 11 месяцев назад
Just a tip. Flip your oil bottle 180 degrees and your coolant jug 90 degrees compared to the video and it will eliminate the chugging. Keep up the good work man.
@memorris2
@memorris2 11 месяцев назад
Everytime i watch him poor oil im screaming in my head, "flip it over and itll pour smooth!!!!" Hahaha
@apecrayfish1
@apecrayfish1 11 месяцев назад
i have the same bike and im having a hell of a time wondering why its keep bogging going into 1st.... thinking it may be a clutch issue. love the videos man. i have learned a lot! keep it going!
@jacobhanson9009
@jacobhanson9009 11 месяцев назад
Check the little arm that connects to the push rod. It can wear out
@hhstarwars
@hhstarwars 11 месяцев назад
You could also try moving the needle down 1 clip
@Ace.inc200
@Ace.inc200 11 месяцев назад
my kx125 was doing this till i found out my carb float was stuck and flooding my bike, maybe check that out
@apecrayfish1
@apecrayfish1 11 месяцев назад
it idles and revs fine tho. it will red out no problem. @@Ace.inc200
@apecrayfish1
@apecrayfish1 11 месяцев назад
ill give that a shot and see what happens right now its all factory specs. @@hhstarwars
@Concernedconservative
@Concernedconservative 11 месяцев назад
Drill the pin hole out and thread in a set screw with lock tight. That will help with excessive heat on the cylinder.
@joemusicman64
@joemusicman64 11 месяцев назад
Was thinking the same thing. Worth a try to save $500 if that's what a cylinder really costs.
@leonardhirtle3645
@leonardhirtle3645 11 месяцев назад
It sucks that the seller misled you but it’s still a cool bike. Koodos to you for not losing it. I learned a lot from this video, they are great to watch and very informative. Thank you.
@AnthonyRBlacker
@AnthonyRBlacker 11 месяцев назад
That bike runs really well considering.. nice job on the rebuild. I think that o-ring needs metal on both sides of it, as a comment down here says, you could absolutely build up that wall with a tig weld (man I'd put some jb on there and call it good!!
@250race
@250race 11 месяцев назад
He needs to take all studds out of the jug sharppie it and slide it over 80 100 120 grit this will show him the hi low spot. The 600 grit is way to fine to do what he is going.
@dannyg402012
@dannyg402012 11 месяцев назад
This guy is the best ! Wish I had him around when I was a kid and had many dirt bikes in the 70's. What I'm surprised about it the Piston only has 1 ring ! I watch videos on 2 stroke lawn equipment like my Weedwhacker and Leaf Blower. All the lawn equipment repair people say the reason the cheap 2 stroke Weedwhackers and leaf blowers like the $99 ones don't last long and wear out is because they only use 1 Piston Ring and the higher end ones like Echo and Stihl use 2 rings. I'm so surprised this bike has 1 ring.
@thebigguy8306
@thebigguy8306 11 месяцев назад
Great video, always a learning moment. Your patience and knowledge continue to astound me. Keep up the hard work
@ni_wink84
@ni_wink84 11 месяцев назад
Dude told him it had issues 🤷🏻‍♂️ not the sellers fault the buyer isn’t skilled enough to repair the issue, this guy is a child, he has minimal experience and gets lucky sometimes. But his rebuild practices are sloppy and dirty at best
@JoeTheBlacksmith13
@JoeTheBlacksmith13 11 месяцев назад
@@ni_wink84quick and dirty
@AnonaMoose-l3m
@AnonaMoose-l3m 11 месяцев назад
@@ni_wink84who’s forcing you to watch his channel tho? Go find something you want to watch or upload your own stuff and get roasted in your comments ✌️
@ni_wink84
@ni_wink84 11 месяцев назад
@@AnonaMoose-l3m hard not to want to see a train wreck, same reason people watch disasters, just want to see how bad it can actually be.
@bradley7723
@bradley7723 11 месяцев назад
Next time you change grips try lifting the grip shoulder and blow air into the gap between grip and bar, it will puff up the grip and will pop right off. Same with installing the grip they slide right on with no effort. With or without grip glue. Bummer on the cyl.
@PurpleMonkeyWaffle
@PurpleMonkeyWaffle 11 месяцев назад
That coolant leak up top could be another pin hole that you don't see or like you said, a low spot in the o ring groove. But I would try holding the bike upright or slightly to the right to make sure coolant isn't coming from the right side and ending up where you see it.
@Tyemuck18
@Tyemuck18 11 месяцев назад
The only time i had a garage it was filled with projects and in a month of working on bikes and rehoming them i could rebuild the entire engine on street bikes and dirt bikes. I love doing this.
@rclmxshift
@rclmxshift 11 месяцев назад
I give you props for taking on such basket cases. You will be able to get your money back out of this thing.
@harmonic3350
@harmonic3350 11 месяцев назад
Gaskets...what a waste of money...doh! Your perseverance and attitude are commendable.
@ShotgunSsergio
@ShotgunSsergio 11 месяцев назад
I think its time for you to get a motorcycle lift good sir. I finally picked mine up last night after my 9th bike, no idea why I waited so damn long
@rockman49er
@rockman49er 11 месяцев назад
I need one to just keep putting it off looking at the tusk scissor lift for about 230 bucks just not sure if it will lift my 98 kx250 it says it only lifts 300 pounds
@ShotgunSsergio
@ShotgunSsergio 11 месяцев назад
@rockman49er grabbed a used HF one for 200 bucks on marketplace..hard to beat
@rockman49er
@rockman49er 11 месяцев назад
@ShotgunSsergio what's HF stand for lol what kind of lift is it
@ShotgunSsergio
@ShotgunSsergio 11 месяцев назад
@@rockman49er harbor frieght motorcycle lift/table
@rockman49er
@rockman49er 11 месяцев назад
@@ShotgunSsergio ok thanks
@csongorszoke4527
@csongorszoke4527 11 месяцев назад
I think both leaks on cylinder were caused by the welds
@konnorcook5918
@konnorcook5918 10 месяцев назад
Gotta be a Chinese cylinder.
@bradweber4869
@bradweber4869 11 месяцев назад
New to the channel and love the content. I used to buy and fix up Atv’s about 15 years ago and loved it. This is inspiring me to get back into it again!
@darrynruzicka2883
@darrynruzicka2883 11 месяцев назад
When they welded the cylinder it deformed the aluminum at the sealing surface If you get lucky you might get away with just milling a few thou off the deck or they may have to tig it up a little then deck it but that will still be far less than a new jug. Have them touch up that pinhole as well. If you don't have anyone local try Millennium or U.S. Chrome and there are others.
@paulparmer2779
@paulparmer2779 11 месяцев назад
Don't forget to fix the fins on the radiator
@bigbullhorn8443
@bigbullhorn8443 11 месяцев назад
I have confidence you’ll figure that leak out asap or already have with all the comments. Keep plugging away, Kickin ass and taking names. 👊🏻
@alanblenkinsop2775
@alanblenkinsop2775 11 месяцев назад
Joe your not shy spending money on your projects I’m the same do it right and don’t cut corners love ya videos nice to watch with a few toastiest and a large cup of tea 👍
@namtech425
@namtech425 11 месяцев назад
That cylinder is toast. The outer seal needs to deform between the head and the cylinder. This is super too bad man. Nice vid - keep it up.
@bootsnbaggers
@bootsnbaggers 11 месяцев назад
Tip of the day… When you’re putting on or taking off new grips, stick an air tip under the lip of the grip and blast air while you’re bushing… goes on like butter.
@98wytebird
@98wytebird 11 месяцев назад
yep and if for some reason the grip wants to slide off spray some hair spray in them and it acts like a glue
@jeffdayman8183
@jeffdayman8183 11 месяцев назад
It's possible that there is porosity under the weld next to the cylinder head causing the top leak. You do have a pinhole in the weld lower on the cylinder jacket as you observed. The o-ring in the outer groove in the cylinder at the head might be sealing fine, the groove bottom may be OK, but the weld under it may have a second pinhole into the water jacket. I'd suggest finding a used cylinder / jacket, cause that weld is real iffy. Cheers!
@joelatkinson2080
@joelatkinson2080 11 месяцев назад
Also it would be a good idea to use blue thread locker on the screws you removed in the power valve. Better safe than sorry.
@kelbrks50
@kelbrks50 11 месяцев назад
Even though that spot is outside the o-ring it's probably allowing it to flex just enough to leak
@mikespain8655
@mikespain8655 11 месяцев назад
As many as you come out way ahead on, taking a beating occasionally comes with the territory. You do a great job, and it is interesting to see the mistakes people make while working on stuff when going in for repairs. Wish you would let bikes and quads warm up just a little more , before revving it so much.
@MojoMagic977
@MojoMagic977 11 месяцев назад
I’ve watched too many of your videos… I randomly blurt out: “Ok, got the carb all cleaned out…” Good stuff!
@MrJeffharper47
@MrJeffharper47 9 месяцев назад
Love your videos. I watched them all the time. I would stop using grease in between the air filter box in the air filter itself. Overtime that grease will attract dirt and sand and as you remove the air filter it can fall into the airbox and make its way into the engine. I just spray extra filter oil around the seal and that does the trick.
@fstlnj29
@fstlnj29 11 месяцев назад
Bad news, previous owner lied his ass off. Good news, we got two great videos! Great work!
@The_Real_Zaineman
@The_Real_Zaineman 11 месяцев назад
I really enjoy your videos. I live in an apartment now. No more garage, no more tinkering. This is a great outlet for me. I wish I was there handing you tools, lol.... Subscribed.. Z 😺
@frederickgiordiano2105
@frederickgiordiano2105 11 месяцев назад
When you were removing the power valves, it looked like there was a repair made to the cylinder (weld or some metal-impregnated epoxy). Just thought you should check that.
@kingyankee69
@kingyankee69 11 месяцев назад
Slide that wheel forward and take a link out. No way to adjust it now with chain stretch. Just a hint for the future.
@bryonshuttt436
@bryonshuttt436 11 месяцев назад
Please don't miss 2nd gear in this video!!!!
@ronalddaub9740
@ronalddaub9740 11 месяцев назад
I don't know if he doesn't understand how the transmission shifts or is he just scared. I don't think he is any good at coordinating a shift.. there are some bikes he will just leave it in one gear and drive it around to keep from having to shift it
@ghettsumm7949
@ghettsumm7949 11 месяцев назад
I don't really trust those Power valve screws,... I would've used a little Lok-Tite on them. Great video Joe~
@dave1135
@dave1135 11 месяцев назад
36:24 a easy way to get grips on us to take a blow nozzle with a thin tube and insert it in the grip. Blow air into it as you push the grip on and it will slip right on easy peezy.
@AFK365
@AFK365 11 месяцев назад
Hi mate just get the hole in the head welded and that dip in the head built up with weld good job otherwise keep bringing these old bikes back good to watch take care.
@vincentmontambault217
@vincentmontambault217 10 месяцев назад
Maybe the JB Weld on the top of the cylinder is protruding just a tad and prevent the head to sit and crush the o-ring properly. You may try to use a flat file to check if it's not protruding.
@Blacksheeprc2024
@Blacksheeprc2024 11 месяцев назад
Love listening while i start my day at work
@RippinRiv
@RippinRiv 9 месяцев назад
You should look into why your so shaky! Love your work brother !
@michaelbratton3319
@michaelbratton3319 11 месяцев назад
Gonna be seriously nippy when all problems ironed out👍sweet!
@kalaharimine
@kalaharimine 11 месяцев назад
Good job Joe, very informative - you make it look easy.
@David-ss9lh
@David-ss9lh 11 месяцев назад
Dunno why but I really enjoy your little videos
@stevenhorn193
@stevenhorn193 11 месяцев назад
Bro your one of the best on youtube with motorcycles/atvs.cant stop watching you keep up the awesome videos
@TroyRosenbaugh
@TroyRosenbaugh 11 месяцев назад
Runs good, love it!! Nice work Joe.
@allan9603
@allan9603 11 месяцев назад
Joe it's a damn shame there are so many liars, scammers.., out there. You have the right attitude when it comes to dealing with these jack wipes! Keep doing what you are doing, a caring attitude, quality work and entertainment (Vinny) as well, and a passion to do things right. Your fans are with you! Allan in Columbia, SC
@C_R_O_M________
@C_R_O_M________ 10 месяцев назад
Watching your videos made me realize that we found the real author of "Zen and the Art of Motorcycle Maintenance"!
@ianhorabin9763
@ianhorabin9763 11 месяцев назад
That's a bodge weld,it's probably still pourous& finding the weak spot,coolant sealer in the rad mix might sort it rather than a new barrel.
@RealSuburbanCowboy
@RealSuburbanCowboy 11 месяцев назад
I clean my parts much more than you do. I need it looking like new when it goes back together, but you do you. JB Weld the tiny hole and the cylinder near the head. It should hold. It isn't in a stress area.
@Tekenduis98
@Tekenduis98 11 месяцев назад
WOW, top end and water pump rebuild with the engine in the frame, with hand tools. You sir are a champ, I would have lost half the bolts and washers, broke a couple bolts, 3 or 4 stitches and the piston rings would have shot off somewhere in the garage, piston would have binded and it wouldnt have kicked over. You powered through and still have to deal with a stupid welded head! Great work! Very impressive!
@gar3938
@gar3938 11 месяцев назад
I love watching your content, you should invest in a parts cleaning machine as much as you work on things. Keep up the good work man.
@TommyToboggan611
@TommyToboggan611 5 месяцев назад
the oring has nothing to push against. It can expand outward out the crack as well as against the head. so it has less sealing force in that spot
@MachineFight
@MachineFight 11 месяцев назад
First American I see who does not war earmuffs, eyeprotection and 3 pairs of gloves while working on a bike. A real mechanic. 👍
@MrMachacker
@MrMachacker 11 месяцев назад
Just as I was wondering what the update was with this bike, you post the video !
@travharrell1713
@travharrell1713 11 месяцев назад
please send some of that rain down to MS. We've only had 0.25 inches of rain since the middle of June.
@OutbackOntario
@OutbackOntario 11 месяцев назад
lol have you ever opened up the door before you fire up a machine?! Great video as always!
@TheDean78
@TheDean78 11 месяцев назад
You really need to buy yourself a set of ratcheting wrench’s there the bomb
@dlosona
@dlosona 11 месяцев назад
Gotta love when parts go rolling. Such a pain in the yass!
@Manulenord
@Manulenord 11 месяцев назад
Hi, excellent work again ! For this time, I got a trick for you ! For easier handle grip installation, spay brake cleaner in the new grip and hurry to put it on his final position... way more easier because the brake cleaner act as a lub :-) and when it evaporates, it wont move anymore Hope this help :-)
@benschlack5814
@benschlack5814 11 месяцев назад
It's funny because it looks like you already owned and worked on it. All that hackery is right up your alley joe.
@petershute3580
@petershute3580 3 дня назад
Never trust anyone Joe,that is a lesson in the learning,hope you got on to some suppliers to come in on your builds,I’d get that crack tested and the head machined . Like your great attention to detail and professional attitude towards your work,just keep punching away at it ,only time and experience will be your guide,we all go through it Joe it’s all a learning curve and as time goes on you will see your efforts grow and grow stronger,be careful Joe from one backyard mechanic to another keep up the good work (I wish you had a parts washer,it would benefit you greatly) carbon and oils grease will not come off in soapy water(albeit if you had a hot water pressure washer lol) crack on young fella 👍🇺🇸🇺🇸🇺🇸🇦🇺🇦🇺🇦🇺😎
@jamesshepherd6260
@jamesshepherd6260 11 месяцев назад
The weld is holding the head cover up so it is not sealing down. Grind the weld down so the top fits flat. From what I can see anyway.
@jetstreek17
@jetstreek17 11 месяцев назад
You live your learn.. good saying.. maybe a t-shirt logo. Thanks for the rebuild.. Great vlog
@litz13
@litz13 11 месяцев назад
The phrase "someone's been here before" comes to mind
@mattbeaderstadt4668
@mattbeaderstadt4668 11 месяцев назад
You’ve definitely got more patience than me. Lol. Great video
@sensibleelvis3898
@sensibleelvis3898 11 месяцев назад
Cringe at the running in process, very first start should be at idle till engine warms up then left to cool down to bed the piston and rings in, followed by a mid rev cycle and a high rev cycle. These days tolerance is so good it will only reduce the total life of the engine by a few 100 hours but still worth doing right. Other than that great vid once again sir :)
@tinyshoproblems9679
@tinyshoproblems9679 9 месяцев назад
Wiseco always puts out the best materials 🙌🏻
@kochykoo
@kochykoo 11 месяцев назад
You gotta love sellers or customers that work on their bikes and has all answers but forgot to mention that part. As soon as you open her up you can see she's not a virgin anymore 🤣😂🤣😂🤣
@danielscottjzx100
@danielscottjzx100 11 месяцев назад
Great video as usual, I've noticed a theme with the background sounds... Either crows making noise or a lawnmower lol. Watching you hone tho, I felt like your drill may have been running a bit fast? I personally have my drill on the slow speed to try and keep consistent hone angles, just my thoughts but I suppose it doesn't matter how the sausage is made as long as it works. Keep up the good work. I wouldn't mind watching you break open a XR600R 😉
@johnhicks735
@johnhicks735 11 месяцев назад
Nope you need What's called A wedge seal that's rectangular shaped that's made in A mold for that spot.or get some right stuff sealant to fill in that spot with instead Joe.
@dustup2249
@dustup2249 11 месяцев назад
"Seller Lied About This Low Compression Dirt Bike--- My poor girlish legs can't kick it to life..." 😄
@Skilledmc
@Skilledmc 9 месяцев назад
A tip for getting on grips, put some rubbing alcohol down the inside of the grip before you put it on, slide the grip on and then the rubbing alcohol dries in like 20s. Used this for all my bmx bikes Lol
@lucascady4992
@lucascady4992 11 месяцев назад
Joe, you need a sonic cleaner! Or get a 5gallon bucket of "Spray Gun Cleaner" it comes with a metal basket that goes in the bucket, I cleaned my cases for my Quadzilla in one of those, it took off all the grime, paint, gasket material, and even the carbon buildup inside the jug and or power valve area!!! They literally looked Brand New!! Soaked them overnight, then rinsed them with soapy water and blew them off with compressed air..
@robertsavage7446
@robertsavage7446 11 месяцев назад
Looked like porosity in the welds.
@skyfreakwi
@skyfreakwi 11 месяцев назад
Copper head gasket sealant. I use that and reuse old head gaskets!!! Never be as a failure yet. Get the kind in a can with a ball aplicator in the cap.
@davidswearingen9652
@davidswearingen9652 11 месяцев назад
Whoever tried to rebuild that bike before you got it should have his tools removed. I don't know how you stay so calm.
@250race
@250race 11 месяцев назад
Wrong spark plug cap. That is for a 4 stroke ohm cap. Read a shop book it will say 5 ohm cap. Pull a cap off 1 of your other bikes you should get 13.5 to 14 ohm with the right cap on it And that's why it lugs on the start And you use 80, 100, 120 grit when you slid your head on glass. Pop head off and see if there is a pin hole up top in Weld. I'm dealing with the same thing on a kx100. 2018
@MakeItHappenOriginal
@MakeItHappenOriginal 11 месяцев назад
I dont know if it's just the video but I would be inclined to say it still has a jetting problem. That bog on bottom end isn't normal. sounds lean to me. it runs like an old 80cc bike or something. I would throw a JD jet kit in for your elevation and see if that wakes it up. re pack the muffler and seal the header pipe at the cylinder. I think it will be a whole different beast after that.
@2stroketyson79
@2stroketyson79 11 месяцев назад
The bog is from air sucking into the cylinder from that damaged area near the gasket
@robertwhitey6621
@robertwhitey6621 11 месяцев назад
Looks like porosity in that weld from poor metal prep. The outside of the o-ring groove looks to be missing some metal enough that the o-ring can’t seal against it to pressurize without leaking.
@OGKILLa9365
@OGKILLa9365 11 месяцев назад
Cylinder could be warped. And most likely cracked from the inside. Need a new cylinder imo
@TroyRosenbaugh
@TroyRosenbaugh 11 месяцев назад
Really should use honing solution. It works ok with oil so cool!!!
@Liesthroughisteeth
@Liesthroughisteeth 11 месяцев назад
Calls for crisscross pattern on head nuts and then torques one side first. :P Oring needs to be supported by the cylinder material all the way around. It's no coincidence that it's leaking at the weld right by where there is material missing. :)
@clintferguson8328
@clintferguson8328 11 месяцев назад
Don't you just love putting little parts in tight places LOL I have very big hands but I love to build engines and some times those kind of things can be a bit of a challenge, love the video keep up the great work sir.
@gtisid
@gtisid 11 месяцев назад
Id definately get into the habit of resurfacing cases and cylinders, saves a lot of time in the long run. have you tried that chinese goop i have seen on youtube shorts for sealing metal? would seem a bit extreme welding alloy for a pore hole like that , but that is what happens when welding alloy as a hobby rather than a pro who does it every day. amazed it started as it sounded really noisy on first start
@paulg492
@paulg492 11 месяцев назад
This guys got a bottom end torque voice. When he pipes up it smooths out.
@ryanjohnson1814
@ryanjohnson1814 11 месяцев назад
Always bring the compression tester with and test before you buy, or don't buy it. A buyer always should pre check out, compression before purchase. Know when to walk away and say no. Or offer less, they say no, walk away.
@greathornedowl3644
@greathornedowl3644 11 месяцев назад
Nice little cycle, when you get it running correctly.
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