How To Rebuild a Motorcycle Shock
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- เผยแพร่เมื่อ 30 ก.ย. 2024
- Motorcycle Shock Rebuild Parts & Tools:
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In this video Justin goes over the proper procedures and steps to rebuilding the rear shock on a motorcycle. Knowing how to do this job yourself can be a huge time and money saver over taking your machine to a shop, but tearing into your bike can be intimidating without the right tools and know-how. This video aims to make that process easier, so follow along as we rebuild the rear shock on a motorcycle. The steps shown here will be very similar for other motorcycle and ATV shocks.
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Lol, everything always works perfectly in the videos, but meanwhile here in the real world.. Shove the seal head down with the tool, but as soon as I stop pressing down, it pops right back up again. Same for the bladder cap. Valve core is out of the bladder so that's not the problem. Take it to a friend's shop tomorrow and lock it down in a vise so maybe I can press down with one hand and pry the lock ring out with the other..
Same experience here as you on disassembly. Now I'm about to reassemble, thanks to this video, and not looking forward to getting the circlips back in. DId you find any trick 2 years ago when you did this? :-)
Everything is always easier in a proper shop.
If your in a shop-
Everything is always easier in someone else’s nicer shop xD
@@iprefernot2 were you able to fix this?
This is why Evo idaho is a gangster and makes the big bucks!!!!
Hiya from the UK! Thanks for these videos you guys have made, they make life so much easier when you see how stuff is put together! You've saved me so many times from making mistakes 😂
15:05 Agreed… so difficult to get this info in Spain
hello thank you very much for the good work. I live in Brazil and have nothing on the gsx750f 2006. shock absorber. You would have any video on this motorcycle. mine leaked the gas and a little oil in the coupling of the hose.
Good afternoon, this is the same procedure for the suspension of YZ250F 2008? Thanks!
Igor Vinicius Yes
thank you very much!
Can you replace just the bump stop , without taking the shaft out?
Good question. No you cannot. You would need to disassemble. Thanks for watching.
Is this the same procedure with a 1989 lt500 rear shock?
this might be a stupid question but if its a nitrogen filled bladder, is it ok to use normall air? and if i want to pump mine up can would it be ok to have a air/nitrogen mix?
Dry Earth air is approximately 78% nitrogen already. The only reason pure nitrogen is recommended to fill a shock bladder is because nitrogen molecules are larger than oxygen molecules, and it will take them longer to migrate through the rubber bladder. Oxygen molecules could (theoretically) migrate through the bladder, create tiny bubbles in the oil and lower the pressure in the bladder. If you're a pro racer, that may be a concern for you; but for most of us mere mortals, there is no disadvantage to using dry air if you can get the pressure high enough
Is that a older yz Shock?
Wow, I think id rather pay someone to do this. And I'm usually all for saving money by doing it myself lol
Ya I'm trying to be that person yikes !
lol the amount of tools needed
10 seconds in "imma head out"
Really it’s super easy lol you don’t need any of those tools
Right and you know it’s done right
you can hear this guy talking perfectly describes every thing perfect brilliant video.
What a great editorial!!! Very thorough! These boys have saved the day for me and taught me heaps so many times now!!! Thank you so much!! 👍
Hi Rocky MTN. I got my parts this afternoon for my 2016 YZ 250. I had a badly leaking rear seal so a service was necessary. I had the shock off and sitting on my work bench until the specialty tools and parts arrived. I took my time, followed this video step by step in my garage and about 1 to 1.5 hrs later I was done. I will get the nitrogen in the next couple days then I can slap it back into my bike. I really appreciate your time making this video to help me learn my bike better and save some serious cash. Great job!!!
oh god I could just imagine how long my bike would be in pieces if i attempted this
Squid WithGear Ha It's really not too bad if you have the right tools and your service manual. Thanks for chiming in!
This comment made the video i was thinking the same thing 😂
just replaced my seals and reshimed my fork and shock in my living room as i do not have a garage or vice... my bike was ripped apart in our living room far like 2 weeks but I got it done! barely..
its actually not that hard
I like working on the cars and bikes I own. It's worth the time and effort
Not only is this a great video on how to work on a shock, it is an excellent primer on how to make a how-to video. Excellent camera angles, great timing on the voice-over.l This is a pleasure to watch!
Thanks Michael, appreciate it!
I produce videos for tile installation, so I know how difficult it is to make a good one.
Michael Byrne Cool! Just reminded me I need to tile my stand up shower :)
@@rmatvmcHi Rocki mountain Indo need to rebuild a Honda xr650l rear shock do you carried those parts too? Please let me know when you have time 🙏🏼
Dude! thanks for the comprehensive how it’s done... 👍🙂
THANK YOU!! Clear, organized, complete, and totally well done. Thanks for taking time to put this together and help out a lot of people!
Glad the video helped you!
Please help me i have a 2004 polaris predator 500 and my rear shock is really really bouncing up and down i dont know whats wrong please help
Aaron Guenther your shock is blown it needs rebuilt like the video
@@evanstitch1622 thank you i will get a moto shop to do it
hello, Thank you for awesome video. However, I have few questions for you.
1. how do you remove 2013 Kawasaki KX450f rear shock reservoir cap, since it uses a needle to fill in gas, and nothing to grab on to pull to bring it out?
2. When you inserting the seal housing in to the oil, doesn't """some air"" gets trapped under it?
3. Should you drill a small hole on the side of the seal housing below the large outside O-Ring to get that air out, to remove as much as air possible?
4. if small amt of air gets trapped inside the shock from seal housing installation , will that cuz a problem? (Or any air in general)
5. do you have a recommended Suspension Setting(front and rear)and Oil Height on the front forks for 2013 KX45F, AND oil "viscosity" used on front and rear fork and shock?
thank you very much for all you help and time making this video.
Did you figure it out?
You forgot to flip the shock upright and bleed any remaining air trapped in the shock out the bleed screw or compression adjuster (removed) ,I attach a small funnel with threaded end screwed into the bleed hole and half fill with oil making sure the hole is at the highest point usually slightly tilt the shock body to achieve this then slowly compress and pull the shock shaft in and out watching for air bubbles raising into the funnel of oil once clear remove funnel and screw bleed cap back in , recharge with 1bar nitrogen and install the spring
Wish I read this comment earlier
What a fricken pain in the ass! I know suspension of ancient times was inferior....but MAN was it EASY to service or replace rear shocks....things have really become nightmares compared to the "old days"....in the good old days of yesteryear a guy could service the forks AND rear shocks in one afternoon! Could even go hog wild and service the swing arm bushings while you were at it! ....Sort of makes one wonder how much of the improvements are really worth the sheer trouble one has to deal with....I mean I guess ....but seriously? Could they have made some effort to make things better while maintaining serviceability? I feel like that has not been the goal of manufacturers ....more like the first thing some engineers came up with that satisfied the MC journalists ....THAT is what they kept as "good enough"
Thanks fo your post, Doug... I've pulled my old air-cooled 1976 Honda XL250 out of the shed, 7.7k miles on her, and ran like a top, then. Hasn't been cranked in 23 years... bout to fire it back up. I recently bought a used 2013 crf250L with 527 miles on it. That new liquid-cooled 250 is so dam sophisticated, and with too many moving parts. My old 250 weighs about 290 lb with 20hp; the new one 320 lb at 24hp.
The old 250 is a dang bullet-proof tank, and I've laid it down countless times off pavement, been over the handle bars at 30-35 mph on a sand bar, hitting a 6inch log under water reentering at the edge, crossing that creek... bike was fine. The newer fuel injected 250 is very peppy; but, I have easily rebuilt that old carb in fewer than two hours, all tarnished and gummed up, turn key. Agreed, Doug... all this new stuff adds to the sophistication, AND brings more rebuild bucks into the shop! That's the price of sophistication!
Perhaps there's more ooh-ahh factor with that newer 250; but, I would have incurred MAJOR damage and expenses compared to that old 250. I think I'll invest a few hundred bucks in that old bike for the real outdoor enthusiast in me!
@Poop On-i-JUNKs 1. I haven't had a chance to tear into one of the newer shocks yet but there should be someway to connect or attach a tool to pull the bladder out. Have you removed the retaining ring?
2. There is really no way to get absolutely 100% of the air out. The goal is to remove as much as possible and tapping and running it through the stoke as shown in the video will help with this.
3. No, definitely do not drill anything
4. Explained with question 2
5. This is affected by too many different variables to have one setting for your bike. I would start with stock settings and the recommended oil and adjust to your conditions from there.
Thanks for watching!
Rocky Mountain ATV MC what all do you replace when you rebuild a shock
long way from wooden coaches we rode barely a century ago...
This method of filling and bleeding is sooo much easier then using the compression adjuster port as shown in another video. This was fast and easy!! Thanks!!
Will still have air in the oil this way
@@450ABTownair doing it this way, or air in it when filling by the compression adjuster like the TBT video?
Thank you for the video! I'm rebuilding my yz426f rear shock and forks with stronger springs so I can do bigger jumps and not bottom out, and they needed new soft parts anyway. This was my first shock rebuild so I have a few words of advice for others to avoid my mistakes, which can be seen in a soon to be posted video:
1. I'd recommend going ahead and removing the valve stem first thing, it makes the step of pushing the seal down easier so you don't have to worry about building pressure.
2. The Bladder is attached to the bladder cap; I used air to press the cap out and it popped out and didn't realize there were supposed to be attached.
3. Don't neglect to remove the peening from the top of the bolt. I tried to simply use an impact and destroyed the threads. I repaired them with a m12-175 die but I couldn't get 30 ft-lbs on those threads so I got as much as I could and welded the nut on cause I can't get a replacement fast enough for my trip!
4. A battery powered inflator or 12v car inflator works well for putting pressure on the bladder.
5. Don't get the bump stop and Seal cover placed wrong way around! I accidentally did. I wasn't about to remove the piston again (and couldn't have disassembled it anyway cause of welding the nut on) so used a hot knife to cut the bump stop off and re-attach it back in the correct place. It isn't pretty but should work and I'll still be able to ride in 2 days!
Kevin Vienneau Oh no! Your service manual won't list this information so my next bet would be to get with Race Tech and see if they can help you with the order of these parts. Let us know if there's anything else we can help you with.
You guys are awesome and your videos are very helpful! Just did my shock with help from this video and it came out great!
Very nice! It always feels good to take something apart and put it back together and have it work lol 👍🏼 - Wes
In Agra (India) A Shocker repairing Shop Haboo Shocker (oposit side of I.G.of UP P0lice kothi, Baluganj Agra)make many self hand machine for rebuild shockers,a very good workers of shockers,he rebuild the bike shocker just like Co.shocker.
Excellent video!
Thank you for convincing me to sell this dirt bike lol I literally put the forks back on this morning, now the rear shock has a leak. Like a puddle. I think it got jealous of the fronts getting rebuilt.
What a process!
Its a 2006 RM85 that I'm working on. Im counting on the rear shock to be a little more, Chinese, than the one you've rebuilt here, and thus, maybe simpler to dissect.
I love these videos, You guys make it look so easy a caveman could do it!
+SlammedBeretta Thanks! Glad it helped you out.
What kind of oil do you recommend
Very cool to see this process! I was briefly an assembly worker at Fox Shocks, so some of this looks familiar. Now to rebuild some shocks!
be great see video on wps shock
Didn't see you inspect the shim pack for bent shims, also nice new nut on the shaft for the re assembly. The bleeding is another area where most guys will fail. The addition of the nitrogen is actually the easiest part.
great tutorial. its nice to see people taking their work seriously :)
year 2000 Thanks for your comment! Hope you enjoyed our product spotlight.
great instructional video. Amazing how the internet has made things that used to intimidating very doable. Thanks RM. Ive been ordering a lot of tools and parts lately from you and they get here quick. BRAAAP on
recon33alpha Right on!
Thank you for an excellent video, it explained everything perfectly, regards Doc Cox.
Such a great video. Helps me 100% to rebuild my KYB shock
Awesome! Glad we could help out!
Followed these steps and got it regased but they said it had alot of air still in the oil ! .BUT some shocks have bleed screws and other adapters to bleed it 100% unfortunately they don't tell you in this video .
justin's video is also good and constructive for many folks who would never consider opening up a shock to wach and understand that this is not for them however they still get to look over the shoulder of a pro like justin and watch along. good video justin nicely edited also.
How do you loosen one with a manual knob? I cant find any information about how to do this. Im stuck trying to figure out how to loosen the damn thing.
That was one of the best videos I have ever saw. Everything was clear, well thought out and all camera angles were correct to show exactly what was being talked about as each part was described. I think a person who has never held a wrench in their hand could have a good chance with that video. Very well done.
Awesome to hear! Thanks *Ross*. We appreciate the positive feedback.
Hello!! I work at showa building these shocks, thought id see someone elses take
Thanks for the video, it is very informative, but I have a couple questions. Won't the punch marks between the nut and shaft cause damage to the nut the next time you try to remove it? Will the high strength thread locker require heating before nut can be removed, and if so, could the heat damage any of the shock components?
I call BS on the dust seal removal. That was already off. I’ve been fighting mine for over 20 minutes
Did you get it off? Just curious
wow what an excellent video tutorial for a pretty challenging rebuild task...i needed this back in 2005 though
i want to repair my rear shocks.... but i guess id better get a new one
10:39 Does the tightening torque of the nut affect damping characteristic, is it an adjustment of the shim preload or doesn't matter if I torque a little bit more or less?
Torque is to keep it in place. It cannot be adjusted via torque.
Question: The main shaft assembly of my CR250 shock (Showa) doesn't come out as easily as in the video. I've tried wiggling it out and tried pushing compressed air thru the reservoir with the compression backed all the way...and still it won't come out. Any suggestions...?
Shawn Warner I would make sure that you've gotten all of the inner retaining clips out.. but as long as you have followed this video, it covers pretty much all the steps for both Kayaba and Showa shocks.
My ring nut is stuck that's on top of spring used oil to try free iy top one is free now but the spring don't move along with the nut so it's stuck
Life saver! Excellent video, especially the mystery if the Showa shock collar removal!
Glad to know it helped you out +Derek Ohlarik! Thanks for watching
Whish mine was this easy, I need a set of motorcycle coil spring compressors or hack it with ratchet straps that I don't have either 😞😎
Checked the OEM parts guide (1997 YZ125) and I cannot find the replacement nut for the shock shaft. I ordered an All Balls seal replacement kit from RM and one was not included. Do you know where I can get a replacement nut? Also, is the nut used from OEM of specific metal/ compound? Last question; on the next rebuild would you have to grind the new replacement nut down again to remove? Thanks in advance- love the videos.
David Andrade If you needed to replace that nut you would need to get the OEM one from the OEM schematics. To answer your last question, we use the loctite with the added punches just to simply add to the locking of that nut. It would not require any grinding to remove if needed rebuit again. Thanks for watching!
Of course. Clips are out...I ended up using compressed air from the reservoir side and it still took some doing. I've done a few shock rebuilds and they rarely come apart easily.
Shawn Warner Compressed air is a pretty slick way of going about it. Nicely done man! Thanks for watching our videos.
you need to be more specific about the grinding aspect, what's too far? and how do you know that a new nut is going to fit perfectly?
+Chris O'connor The goal is to take as little material as possible. The shaft from the factory will be peened or staked to ensure that the nut does not accidentally come off so we are removing just enough to allow us to remove the nut. Each shock will be a little different and some service manuals will demonstrate the complete shock rebuild so always check there first. Just take it a little bit at a time while avoiding any grinding on the center of the shock shaft and you’ll be fine.
+Rocky Mountain ATV MC thankyou I really appreciate the answer back, I will give it a go with manual in hand. thanks again!
would wt10 fork oil would be right for my 2009 wr450f?
Can the 2001 YZ 125 stock monoshock be repaired?
Perss Perss yes
is it really necessary to use that much oil when pushing the bladder back in? I don't want to make a huge mess all over my vise and floor.
+matt_ru You do want to make sure there is plenty of shock fluid so you don't get any air bubbles. It's the best way to ensure that you don't get any air in the bladder chamber.
very good vid I have had dirt bikes for years never stop learning I live in QLD Australia they don't do vid like this here might learn to much thanks.
Ha ha that is awesome! Glad we could help. Thanks for watching.
Excellent Vid. appreciate it alot.
commenting to keep it alive!
Excellent. Cheers from New Zealand.
Thanks for watching!
Just wanted to say thanks for the video! With the amount of tools I have, it was not a daunting task, but I like being informed ahead of time. With your help, I pulled the shock apart no problem, and was able to easily put it together. With another friend's help, I was able to take very detailed measurements of the valve piston and all the shims and revalve it. Can't wait to have my shock charged with nitrogen and try it out. DRZ400SM for reference. Thanks again!
Amazing video and it's really helpful for me
Awesome, glad it helped!
Looks doable from home until you get to the nitrogen part. What about all the air already in the bladder? Isn’t that 75% nitro? You don’t have evacuate that first? Why nitrogen?
its industrially convenient and its dry. i prefer co2 myself. bigger molecule passes through the rubber bladder at a slower rate.
When I was disassembling mine, while unthreading the piston nut, the shock shaft unthreaded from the yoke/clevis/bottom piece instead. Rebound clicker was backed out all the way so I just impacted it back in there. Hopefully it's fine.
hello, I need a kit to repair the monoshock, oring, catch.
+Luis Perez OK. Check us out on our website at: www.rockymountainatvmc.com/Parts-Finder
Here you can type in your machine's Year, Make and Model to get all your bikes replacement parts for your rear suspension. If you need help navigating our website let us know.
+Rocky Mountain ATV MC, I have a Honda XR250 2001 uses the same monoshock with this video, unless you look at something beyond espesifico, guides me if I would help that.
+Luis Perez You can type this part# in on our website: 1196950007
www.rockymountainatvmc.com/p/1053/-/162235/All-Balls-Rear-Shock-Seal-Kit
+Rocky Mountain ATV MC, thank you very much, you. Do you ship to chile? Do you have any additional cost?
i have a question, i want to do it for my kxf 250f unitrak shock, i dont understand in the time when you fill with oil and put the piston assembly, when do you close it? i mean when you purge, with compresed piston or descompresed? i cant explain it, look at 13:10 minute, in that part its my question, doesnt vary the level of fluid? because if its descompressed it will be more space for fluid, if it compressed less space for fluid, ?
please help me, im getting crazy hahah!!!
thanks! really good your video
Monica Armentano You would just want to follow this video honestly. You would want to purge the system with the piston up and out or "decompressed" to get all the air bubbles out. Then pour more fluid in and install your piston. Thanks for watching our video man!
+Monica Armentano WOMAN¡ i think...
The video is a tremendous help. Thanks! One question, how do you swap out the copper looking bushing that rides on the outside of the piece that sits between the groups of valve shims. I got the pivot works kit so I have a replacement bushing but it's not split like the fork bushings. 2016 YZ250. Thanks!!
what about replacing the guide bushing in the seal head ???????????????!!!!!!!!!!!!!!!!!! too hard for you, eh ?! some "suspension specialists" you guys are..... shame on you ! now the shock shaft start chafing it's hard coat away !!!
How long can bleeding take? I have blisters and still see bubbles
:(
I'm having the same issue! They are never ending I don't get it
Brian Wilson then air is still coming in from somewhere else.
Brian Wilson it’s a very tedious task...
Boa noite meu amigo vc é dos Estados Unidos? Vc tem as peças da wr 250 f 2007 qual seu whatsapp
Where do you find these rebuild kits?. And can you please state distributors. Tjx
The first link in the video description will take you to a page with shock rebuild kits and tools.
Hi there. I have a ohlins shock . The shaft has the rebound needle inside of it . The shock has a plastic nut to adjust it manually but the needle get stuck in the up position and when I turn the nut to make the needle go down , the nut stop clicking because it get stuck in the up position. Do you know if this is normal ? Or what can I do ? The problem start whit oil leaking. Now I'm thinking it was leaking from the adjust nut because retainers and seals look good for me . Thanks
Hi, I have pulsar 220 in my bike while turn right or left side the center stand hits the road and making a voice can you suggest me how to resolve it.i think 220 has very low ground clearance and maintaining the air pressure in front tyre 30 and back tyre 40. please let me know ur suggestions Thanks in Advance!
What bullet cap would I need for rebuilding showa shocks on crf450r/crf450x? Specifically model years 2010+?
My son's 2011 KX250F has Factory Connection setup with remote Nitrogen chamber. Is the process the same? Shock puked its oil and needs a reseal. Thx
All these videos don't use the solid piston band. These bands require a special tool to put on or you can stretch it and then put on the piston. I stretched mine then wrapped it tightly with electrical tape and put it in the freezer to get it to shrink up a little. It's a tad loose now. If I have to do it again, I'm going to get one of the MX tech low friction units because the old band was a source of a lot of my friction. This is a great video but like the other you tube videos it misses the dampening adjuster. The spherical top bushing and O-rings don't come in the pivot rebuild pack.
What's the best way to fill a kyb shock for a 2011 yz450 where the reservoir is 90 degrees from the shock body and not parallel like in the video? Do you use a vented plug for the body while filling the reservoir?
You can fill it through the valve adjustment hole. Maybe you can do it this way. Make sure you let the
air pressure out of the bladder! th-cam.com/video/tu85Fnx8UPU/w-d-xo.htmlm53s
Nitrogen? Air is also good because is 80+ percent Nitrogen.
Nitrogen is necessary for the shock. With all the action the shock gets with riding, it needs the nitrogen to provide consistent performance. Oxygen is more reactive to changing air conditions and temperatures and would change with the heat that a working shock creates.
Hello
very good video!
tell me something, what is the pressure you put in for assembly? I'm not talking about the pressure after you're done!
Here in 2021, Excellent video, Gives me a new faith in Mankind in General, People can be Generous with their knowledge and share with the rest of the public...then others can be the opposite of Generous. Rocky Mountain ATV are the best of the best. 5 STARS in parts and service.
Great video. Took you advice and visited you web site to purchace a shock rebuild kit. Looked up my bike and was disappointed that this "huge range" you bragged about turned out to be pathetic. Fork seals nothing more nothing less. Thanks for the false hope.
Thanks Rocky Mountain ATV MC!
Really do not need the annoying music, distracts from the video.
Doesn't look too terrible. My swingarm bearing went out today so I'm going to re do everything. Already had to do the forks but those are cake.
Its called a seal bullet huh?
Not a Sealdo 😂
I can't remove the shock shaft and seal head. I can pump it, but it won't separate from the body. The seal head circlip is out and everything is clean. Ideas?
Is it worth going to a professional suspension tuner like race tech or can an avid mechanic re-valve their own forks and shock with the same results ?
Hi Guys!
Great video, it helps me a lot!
I am currently rebuildig a Yamaha YZ 250C from 1975. Do you have any idea which oil i should use? Or who I cpuld ask. Any help is aprechiated!
Thanks a lot!
When putting the assembly into the shock body it goes down but when pulling up it creates a strong suction? Could the stack be clogged or something?
Really nice video. Helpfull. Just a tip. The nut in kayaba is not standard M14 2mm pitch. It is 1,5mm thread pitch
I bought a shock bushing for this job. But didnt realize I should have bought some sort of driver also to get the old out and new in 🥶
You all rock! Thanks for the instruction!!!
Bloody informative. Just wished that you had this video up a few years back when I had problems getting a someone decent to rebuild my Ohlins. Even back then without full knowledge, I knew that the guy was doing a screwed up job.
Instablaster...
Any tips on depressing a stuck sealhead on a soqi shock? Ive already tried a hammer and a punch and the racetech tool with no luck.
how come when I push the seal head down it just Springs right back up to where it's originally seated hiding the clip I have the valve stem out there should be no pressure in the shock from the bladder
Anybody know where to get the seal kit for an 87 KDX200? And any tips would be much appreciated
I jumped a 32 ft high jump and my suspension fill out for me so I skipped the removal part
I'm going for it....gonna try it...wish me luck....
Good luck! We believe in you! Let us know if you get stuck. - Wes
Do you know what is the rear shock oil seal size of CB1300? I guess it is 11.6 * 24 * 5.
so i did like you said pull the stack with the flat screw driver, everything was great. I forget what happen but the stack was laying on my bench and someone was using a hammer so my stack fell off the flat screw driver. Now I have no idea how to put it back together. I did the best i could, and when I did, my dials don't work properly. Any advice, I'm going to remove it again from the bike and do this all over again. IF it matters its a 2004 rm125