I Waited FOUR Months For This! 1989 Kawasaki Kx125 Dirt Bike
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- Опубліковано 21 сер 2024
- I finally get in the power valves to fix my 1989 Kawasaki Kx125 dirt bike. #Kawasaki, #Kx, #DirtBike,
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It looks like the seller that sold me the powervalves no longer has any listings on eBay. I tried to search for his products and nothing comes up. I will leave a link once he comes back with more products!
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23:38 Gotta love that background music, what the song called? lmao
I'd resurface that head with high grit sand paper over a flat surface you can do it on the corner of a table so you dont mess up the landing of the head
He is on Facebook under the KX PowerValves name and you can contact him there to order
Yea we need that power valve guy Lmao. Let us know for sure
You could have used that TIME learning to drive mx-bikes 🤔
sure helps when you clean the mating surfaces.
Ikr that pisses me off so much
he keeps showing how fucking dirty it is and keeps saying it looks perfect as if it looks brand new
I can see old gasket material stuck on the cylinder & head , he has to clean the surfaces so there even then buy a new head gasket , he’s lucky he didn’t crash the piston against the head , due to the extra thickness of the head gasket
ah yes brothrer,,,, i started my MX racing on the 89 125, had many bikes over the years but this bike, being my first, held a soft spot with me, still have her today 24 years on, spent way to much money on a ground up rebuild, still even have the factory workshop manual that the boys from Kawasaki Cairns kindly gave me for the rebuild,,, FYI, a 125 rear guard fits the 89, and gives it a better look, not so rounded more flatter guard, love my bike dude,,,,
You need to resurface both the head and cylinder. Look at it joe it may be smooth but that little bit will make it leak. Unless it's a faulty gasket. Resurface the head just enough
Agreed. both surfaces look bad to my eyes.
Agree. Why not lap them on a surface plate. Takes no time and will make all the difference.
45 degree crosshatch
@@hvalour1 OP is talking about gasket matting surface, rather than cylinder walls. But both are important, especially 2 stroke.
At least clean the surface up with a bit of wet and dry
I had a similar issue with a 91 KDX, broken power valves. I too purchased new power valves from the same gentleman. Very good (better then OEM) quality, worked great.
Yeah he does good work!
Probably gonna have to do this on my 93 kdx thing just cut on me two weeks ago was riding good all summer and can’t seem to find the issue yet but all my tests have time thinking these could be done on mine to
@@tylerross2968Did you do the valves?
waiting 4 months...I would have wanted to check the deck and head for level... even decked them a thou. I admire your never give up, "I want to ride this bike" commitment
It is great that the guy actually made you some power valves and even out of better metal.
I left a comment on the previous video but will do the same here for anyone curious about KIPS. If you have a more common KDX 200 with the same KIPS system (same applies for similar years KX): BDK and motoduro UK makes replacement powervalves for the KDX 200 and a couple of other companies make them for the KX. I went with motoduro and got mine shipped pretty fast. The wear problem is that the OEM valves are aluminum and the power valve shaft is steel. If the KIPS system isnt maintained then the valves will not move as freely as they should and the teeth fail. My KDX had worse looking powervalves where one side has completed rounded into an aluminum pellet and was basically gone. Fresh valves make a world of difference and the steel ones are well worth the money for these awesome machines!
I love those old school kx's, glad you are keeping them alive.
Lots of skilled British guys in sheds with lathes 🇬🇧 god bless America 🇺🇸 and our British cousins
Yessir!
Yep, we have some very good engineering shops here in UK.
God* because there is only one God and its Jesus Christ Our Saviour
There's also a guy selling handmade pipes for 1992-1993 kx125s which are impossible to find.
@@Josh-ev2xj 🙏🤠
Great video . The old kx125s are great bikes I had a couple back in the day. Also had a cr250 1996 but I like the kx way better. Love the raspy sound of the kx. I'd love to see a cr250 rebuild. You really know your way around a bike/4 wheeler/3 wheeler keep up the great work and keep the videos coming.
I can’t actually believe you sealed that up like that , and completely bodged it , what a guy
Remove the dowel pin from the head. Set it down on some wet and dry and lightly skim the surface in a circular motion. Remove all the remnants from the top of the cylinder also. I have rebuilt a highly modified KDX125 and it's runs like a champ. All the best!
Glad she's finally going man, I know uve already been hit alot lol but yeah man, flat surface, some 600 grit wet sand paper, and surface that head, and put water on the paper to use it as wet sand paper. Not dry b.c. it will clump up and not sand evenly. Cylinder head, can do the same by hand or use scotch bright pad, wire brush the studs, put antisieze on threads when torquing too. And instead of silicone (shouldn't be needed but last resort with clean shiny surfaces) use the gasket tack, spray on gasket adhesive and it doesn't squish out everywhere after torquing. Deff can't wait for riding vid though!!! Hell ya man
put a ruler across the head check it for straightness
I just picked myself up an 88 kx 125 and watching your videos has helped me out with somethings on my bike....Thank you for doing these videos.....you really know bikes and it's informative.......👍👍👍
I’ve had the same bike and you have to be able to see the grove not the rounded edge on the middle part when the power valve is open at 11:14 that will cause some power lost
The center one. I saw that too.
Everything needs to be clean and free of old gasket material before reassembly man.spotless.
Beautiful bike for power make over and updated parts upgrades power mods top to bottom it's the perfect platform to make a monster.
I have a 86 kx and had those valves out and couldn't figure out how to put them back thanks for showing that👍
@2vintage I believe the center power valve is timed wrong....don't believe it's supposed to close when the other 2 open. Head and cylinder need to be resurfaced. Spark and timing are still an unknown... which is always a problem with bikes that have been hacked! Which you continue to do. Never pays to cob stuff together. As you're finding out with this clam. Someone else already did exactly what you're doing. Half assed a bunch of stuff chasing their tail. Guessing and changing multiple things at once never gets you where you want to go. Also never tells you what was wrong to begin with. In most cases like this, you're best off tearing it completely down and doing things right from the bottom up. And with these old bikes parts need to be replaced and refurbished. Buy a carb kit, complete gasket set, resurface the head and cylinder, new ring(at a minimum) new crank seals, new intake boot! New air filter!(not a junk K&N) CLEAN THE AIR BOX! , clean and or rebuild the petcock, make sure it's timed properly and get a manual (should be able to find it online) test coil and stator, and assemble the power valve according to the manual!
I just did my top end on my CR125. I made sure to scotch Brite the hell out of both surfaces. Never had an issue.
You've got to get a friend with a vapor blaster. Make that cylinder look like new.
Great video..I love watching n love working on them old bikes to. But the wife don’t like me in the garage for hours on end tho lol 😂
Great video on power valve install!!!!Bike is cherry.
I might be wrong on this but i believe the center valve should open raising the exhaust port height when rod is pulled increasing top end power not closing or lowering the port height.
Hell yes that sounds ALOT better 👍😎awesome ending great video bro 🙏😎
Carb cleaner has more balls than brake cleaner for jobs like this. Seems the mechanism is very complex especially compared to the design used by the rotax engines in the Aprilias for example. When you put that together I winced as the mating surfaces were filthy - no wonder you got a leak (I'm surprised at you!). Also cleaning with a wire wheel will clean the surface but it wont be flat anymore. Sorry if I sound like a dick, just sharing what I have picked up along the way.
You need to clean it better and the studs and bolts have corrosion that needs to be cleaned of the treads to get the correct torque
i've got a perfect 1988 KX80 "big wheel" chassis with radiator, all frame mounted ignition parts, straight wheels, brakes, everything except the motor, its even got a nice PC stainless pipe, new tires, great original chain and rear sprocket and chain buffer, barely got any wear on anything! Garage kept for 28-29 years! The motor went to a shifter kart in the early 1991-1992. I'll take $500 for it and I should be asking more, this is a restorer. Its located 1 hr South of Dallas, TX.
The pipe has dents.. I saw someone fix it by filling it up with water and let it freeze overnight.
Keep up the hard work tho!
Air pressure works better b.c. u won't risk blowing out the welds. Ca t predict how much the water will expand and thats how u split pipes open. Look it up on here. Much better method imo
I use copper head gasket spray on those gaskets
eBay is like harbor freight, it works, but only for a limited time…also take stuff to an actual machine shop… what other option do you have? MACHINE SHOP, go get that head surfaced get the cyl honed… gasket maker isn’t for sealing up imperfections in high pressure areas
The 1989 KX125 and Suzuki Rm125 used a conventional 46mm KYB front fork and are the ones to own. Lots of 89 250s went to inverted forks that were poor. Earlier 90's inverted forks became pretty good eventually. 89-90+ Honda inverted front forks were the worst.
Before anyone takes advice or tried to learn from captain clueless here 1 thing you should know is NEVER take advice on 2 strokes from someone who doesn't know the first thing about starting 1 or someone that throws filthy engines back together and acts surprised when they run like junk that he considers minty lol
Shayne 100% I wonder how many ppl take advice from him and uses wd40 to clean out carbies and just starts bikes up and revs the shit out of them with out warming them up
Your comments are quite harmful and unnecessary, he has gone out and made the effort unlike you! It's easy to be a armchair critic but he is entertainment and it's up to the viewers to decide what is valid facts and correct procedures, yes a lot is trial and error but he has a lot more patience then me and he gets there in the end and great content.
@@peteramberley9952 he's been doing this for several years so time and patience is a load of crap sorry. Any fool that thinks this clown knows what he's doing is a bigger fool than Joe himself. Let me ask you this if th lived near him and needed your bike worked on would you take it to him? If you say yes you're a special kind of stupid considering he displays how bad he is for everyone to see on a PUBLIC forum thus I can say whatever I want. If you don't want to be criticized for being trash don't post publicly
@@peteramberley9952 and there’s people like you that’s got no idea and tells people that knows what they are doing armchair critics your a real piece of work tell me this who puts gasket maker on head gaskets because it’s leaking as he didn’t clean the surfaces of the head or the cylinder the list goes on and on and no one kicks a bike over that’s been sitting for years with out putting oil in the cylinder first and comments aren’t harmful if you can learn from them and when posting videos on UA-cam when you don’t know much about stuff of course people are going to comment if they know what they are talking about
@@shaynedonnelly374 I would seek advice from him but being older and wiser I like repairing things myself and being a bit more methodical OK and cleaner when rebuilding engines.
That’s a pretty cool design on those power valves. Engineers are amazing.
Your right it’s crazy. I took the power valve apart on my KDX and the whole time I was thinking how did someone come up with / design this? Japanese engineers are smart lol.
Yes looks trick but there are too many moving parts in the kips system for my liking. Much prefer Yamahas ypvs solution.
Cool yes, good no hahaha
@@colinculverwell325 Well, Yamaha invented power valves, so the other manufacturers had to come up with their own solutions.
@@mmaaddict78 that's right so everyone else's that I've seen is more complicated. The suzuki one (aecs?) Has a guillotine type valve that's in 3 pieces if memory serves me.
Dude, leaving all that debris between the cylinder and head is going to cause you leaks.. it should be spotless there!
I don't think he worries about longevity with the dirt of some of the stuff he puts back together.
Run good enough to sell to the next sucker
@@williammiller6543 isn’t that the truth …
I bet out of all 4 of you ...no one even had a dirtbike...your moms riding mowers dont count
@@williammiller6543 no shit lmao
Kx 500 is my favorite bike Honda close second lol that bike you have is designed excellent look at the seat and how it goes up the tank. That's for getting really close to the under the bars for letting the back move alot further so you can keep it pinned for cornering. Love it alot of other bikes you can't do that and your stuck in tge center of the bike whicI keeps ypu more upright like a girl LOL
I’d love to see you do a full restoration on this bike!!!
Love these builds
I love those old bikes, i hope she runs well. Your a good mechanic bro, if she runs well!
Doesn't even remember he changed the oil in the last video....🤣 But considering the metallic nasty sh*t that came out before, at least this one inadvertently got a much needed flush🤣
Had an 87 rebuilt with new power valves absolute ripper pulled up in 3rd no clutch all day miss that bike
I've seen the torque wrench make an appearance in at least 20 videos, but that's the first time I've heard it click🤣🤣🤣 Anyone notice the power valve cover was left on the editing room floor? Bet there's either no gasket or he cut it to get it on....I was laughing as soon as he dropped the cylinder down.🤣🤣🤣
i've use a Toothbrush to clean little parts
Can't wait to see the first ride
Nearly pissed myself when the head gasket leaked🤣🤣🤣
how can you think " i dont know" when the head surface is clearly dirty. clean mating surfaces SPOTLESS. youve been told this countless times. sheesh man
Looks to me like your head gasket may be defective, those aftermarket gasket kits are oftentimes made out of chinesium.
Glad you got it together and running, the new power valves are very cool, look like they are made from stainless steel.
The head gasket was fine. The mating surfaces were not prepped properly
@@findingdimes5368 so you were there during installation?
Always a wise guy out there that has to shit on everyone else's dinner table.
@@MM_in_Havasu Were you there to see if the head gasket was defective? So how can you ridicule me for my comment? You can clearly see how dirty the sealing surfaces are but not if the gasket is bad. You need to thicken up that skin bud.
Mint bike
lap the bottom and top of the cylinder and head. You seem to skip cleaning these areas correctly on all your builds.
Im glad that im not the only one who noticed this too .
Me to
👍👍👍😜🏴🦕🙂🤞✌
Lap/surface the head and cylinder mating surface no need for gasket maker. Use oem or cometic gaskets.
Really want to see you get a CR500, KX500 or a YZ490!!!
He's had 2 of the 3 lol
I wouldn’t use that impact to start the threads on bolts. Easy to cross thread or strip things out that way. I’ve found the best thing to use to start bolts is a nice 1/4 inch t-handle nut driver.
He won’t listen we all have told him about that He does a few things that he needs to change but one time something will happen and he will see the hard way…
@@shotgunz1248 ya but he'll leave the mistake out of the video. He makes so many mistakes and never takes constructive criticism. Captain Clueless knows better than any of us but it's like a car accident I can't stop watching lmao
@Shayne Donnelley..Lol
@@shaynedonnelly374 exactly right! And I continuously comment just in case Captain Clueless has anyone fooled(which the clueless brigade is large🤣) they can get an idea just how hapless a fool he is....
@@johncoleman2495 lmao so true. Especially about the clueless brigade aka the clueless followers: it’s like a car crash I can’t help but watch
Love how he starts it and revs it to the moon, end up heating up your piston faster then your cylinder and we all know what that means 🥴😂
Never had a 2 stroke?
@@afterhoursfab842 You need to let 2 strokes warm up son before revving the bullocks of em. stop being silly
Fr🤣
@@onenessseeker5683 if I let my bike warm up my power valve gets a little jammed , i just ease on the gas till power band then bang 1 threw 6 then shes warmed up
@@afterhoursfab842 If it's getting jammed something is not right fellow. Is it getting gummy because the bike is far too rich? Can't see it myself though. It sounds like something needs replacing. Just don't hit the powerband till she's warmed right up.
Take it in and have both surfaces decked I don't think either are sealing properly. Having a couple thousandths taken off will make a huge difference.
Awesome video man, much respect for the work you put in, and the love you share for the bikes I really appreciate the videos!! Keep em going man
Had a relative pass away and leave behind a kx500 of that vintage. Really wish I would have bought it thinking back. Helped them get it running to give the $ to the family.
That is a beautiful bike
Dude gasket surfaces on The Head and the cylinder is dirty as hell looks like and I wonder if there's something going on with the power valve governor under the case there
I bought one just like that brand new in Rochester Minnesota in 1989
The cilinder and head looked like it could use a bit off polishing ..abit effort for making it run like it used to
Nice '89... they wicket fast.
Easiest way to clean KX powervalves will be with a dremel and wire brush fittings. Your get them looking new.
Dude I guarantee if you sanded and polished the gasket surfaces on The Head and the cylinder you'd be right as rain it looks like there was corrosion and s*** all over it
YAY "Two wheels good four wheels bad" George Orwell
You should check the head for warpage.
Awesome dude, I watched a good video the other day if you put that header under air pressure and heat it up with a torch those dents will pop straight out 🤟
Why do you rev the gas before you kick it? Your not priming it
I do it on all mine it's to check the throttle isn't jemmed its so u hear the slide drop👍
Mentally it helps lol..
@@jaredpratt9733 it does wen you start a banger bike up and the throttles jammed on full and there's no way of turning the bike off
this has me itching to finish my 86 cr125 nice work man and the cylinder and head could be resurfaced and should seal better
Mint bike bro
Blow those ports out with air compressor!!
23:35 “make sure it’s all lubed up and shove that guy in”
For bikes spraying head gaskets with copper coat is the way to go!
Another killer video man c if people just get out there and at least pick up a wrench it’s wicked easy to at least try to fix ur own stuff
hey joe I had messaged you on Facebook before about Ken o Connor being able to rebuild your one crankshaft, he would also be able to surface your cylinder and head for you. Whatever the problem may be. He lives in Connecticut
Thank you,for the great information on the 1989 Kawasaki KX 125 ,power values.
In the future,would you consider doing a video on 2004 Kawasaki KFX 700 ATV?
Maybe the head and cylinder look better in person than they do on video
Damn bro i love 2steokes.shes two stroking it ,,😁
Awesome bike brother great year very clean nice score.good luck .
Holy shit you've got a lot to learn
I just bought a 89 kx80 L what does the L stand for i love the the work you do i have learned so much from you thank you so much I appreciate you
This is the one I want to get I saw it on marketplace
love the vids man keep it up 😇🙏
Thank you!
Awesome video
Awesome bike!
22:51 this was new oil from last video, it was dark oil before, you must have forgot you already changed it that's why it looks new.
Can you rebuild my 2001 rm80😎
do more motocross bikes please
Hell yeah
you say its smooth but its filthy and that alone will cause a leak, always run my barrel, head over a sheet of wet and dry on a flat surface with wd40 for lube. do it right you do it once, but good you got it working. just hope it screams as they should
Great
Love this bike. You should clean the cilínder and his head before any assemble! Very dirty all components. Try Too Make A Clean Work.This Is Only A Good Advice Too Improve Your Quality Work.Ty For Sharing Those Vintage Beauties!
i actually bought this one brand new back in the day
Good job joe nice bike mate 🔧🔧🔧👍👌
You may have to buy a copper head gasket my 250 2 stroke did the same
Please pack the back box in the next video 😎 she will sound so much more crisp
If they guy never comes back you can get a machine shop to make some for you but it will cost quite a bit maybe? I hope he comes back somehow some place?
Awesome build.sounds strong.go do some nooners and rip pwr band..b safe..peace
hose clamps n case saver
It would look great with new fork boots and graphics
Make a video of that Elite 80