Fork seals, change on motorcycle part 1 (of 2), twin chamber

[billyman1221]

hey what type of grease i have lithium kind does that work? i just order all there parts of you guys

[RockyMountainATVMC]

@billyman1221 - that will work. Thanks!

[2braappin]

i have a 07 yz250f so i think there basically the same forks, what would i do if i just want to change my fork oil?

[RockyMountainATVMC]

@2braappin - yes Basically the same. To change the oil, follow the steps in the video. If you are going to the trouble, put new seals in while you are at it; otherwise, you will find your seals leaking right after you went to all the work.

[billyman1221]

@2braappin just buy the new seals they 12 bucks from tusk cause it would suck if they start leaking

[ridemotorcyclesin200]

That was just one fork correct? Isn't the other fork totally different? I have the SFF on my 2011 KX250f this is the same correct? Then what about the other fork leg?

thanks

[RockyMountainATVMC]

@ridemotorcyclesin200 - both forks are the same with the exception of your 2011 KX. Kawasaki did each side different for the first time. I can't say I have done those forks yet, so I couldn't tell you the specifics.

[Yamahayz2502t]

PLZ HELP OK AT 0:11 YOU SEE THE RED CAP ON TOP OF THE SHOCK HOW DO YOU GET IT BACK ON ANY ONE TELL ME CAZ I NOW IT SONDS STUPIDE BUT I CANT GET IT BACK ON

[RockyMountainATVMC]

@Yamahayz2502t - That is the air bleeder. it is an aftermarket accessory - there is just a screw there stock. They simply thread into the fork cap. If just the rep park came off, I would assume you need new ones. The red part shouldn't come off. We sell them on our site (not red though).

[Yamahayz2502t]

@RockyMountainATVMC oh ok thanks alot i will buy a new one

[yamadogyz]

Do I need the oil measurement syringe thing?

[RockyMountainATVMC]

@yamadogyz - On dual chamber'Twin chamber forks it is not usually needed.

[yamadogyz]

@RockyMountainATVMC Thanks! I didn't think so.

[Hanton14]

Does a Yamaha yz125 have twin chamber forks? and is it the same for both forks both left and right??

[royalb8man]

so once they go do i need to buy new fork seals or add the oil?

[RockyMountainATVMC]

@royalb8man - yes! Time to tear them down, inspect, replace the seals, and put fresh oil in.

[GrecoTheGodFather]

hey, i just got a used crf450r 2006 i noticed one of the forks are leaking quite a bit of oil is their a faster and easy way too stop the leak??

[RockyMountainATVMC]

@GrecoTheGodFather - Once they go they are pretty much done. Time to rebuild!

[cat1231234]

if i am just changing the seals do i need to change the inner chamber oil?

[RockyMountainATVMC]

@cat1231234 - no, but while you are there......

[661sand]

made in 05 if iam right or do the 05s have the sss forks. an answervwould be much appreciated. iam looking to redo my forks myself but i dont want too ruin them fausevi have the. wrong idea. thx plz answer asap.

[RockyMountainATVMC]

@661sand - The KYB SSS fork is a dual chamber type fork.

[661sand]

iam connfused? in the cartridge video comment u say that the 05 has a twin chamber. do u mean they put the sss forks in at 2005 or is the twin chamber a seperate change that they made in 05 currently i have a yz 125 and i dontvknow if i have a cartridge fork or a twin wall fork possibly if its what they

[RockyMountainATVMC]

@661sand - SSS fork is a dual chamber type fork.

[darsktm]

Great vid, If I was to replace the inner assembly, could it be done by opening the inner cap while the fork was still in the triple clamps & replacing, would it need to be bled for any reason??

[RockyMountainATVMC]

@darsktm - to remove the inner chamber, you need to pull the bolt from the bottom of the fork, thus dumping all the oil in the outer chamber. You will need to remove the fork to do it right.

[RockyMountainATVMC]

@MrChicken49 - certainly not dual chamber. Refer to the cartridge fork video. I suspect the DT for is much more simple though.

[39kawasaki]

hey is this right for a kx100 i have fast lap upgrade

[RockyMountainATVMC]

@39kawasaki - check out the cartridge type fork video we have. It is more like your kx100 fork.

[d1977j]

Hi, did you ever do a WP dual chamber?

I got a set that fits yamaha WR 250/450 F from '06 to '09, probably up to '11.

They are sort of racing suspension, not standard, but I have no data for it..like oil quantity, type, which seals etc.

[RockyMountainATVMC]

@d1977j - The new KTM's have them, but I haven't got around to doing a video yet.

[d1977j]

@RockyMountainATVMC

It's the cone fork, I believe.

Managed to stump upon some manuals, being similar to KTM SXS fork, except having preload adjuster also.

[skiercaleb]

is this the right video for a 07 wr450? Thanks for doing these great videos, really helpful.

[RockyMountainATVMC]

@skiercaleb - No it is not. you need to watch the cartridge fork video we have. As a WR owner myself, I am disapointed yamaha hasn't put the new SSS (Dual chamber) fork on the WR yet. Even the 2011 WR's are still running the old fork. We are pretty much running 2004 YZ forks on the WR.

[braaup]

May I ask for a request? Could you folks at RockyMoutain PLEASE make a DIY video on how I can change the oil, springs, valves, etc on an XR type forks? I am currently wanting to do my forks myself on my XR250R and I can not seem to find a decent How-To!

You guys would have absolutly no idea on how much I'd appreciate it!!

[RockyMountainATVMC]

@braaup - i don't see having time to do that any time soon. Your XR forks are actully a lot easier. Get a service manual and it will walk you through it.

[ghat13]

if your just doing a spring change for the forks and shock, is it necessary to replace seals, O-rings, bearings, recharge nitrogen, ETC.

[RockyMountainATVMC]

@ghat13 - not necesarry, but if I have the forks off the bike, I figure I may as well do it while I am there.

[mikasramos]

Thanks a lot for sharing mate. Your videos are the best. So much to learn with you guys. Thanks

[SuperDuke1995]

Do i have to disassemble the whole fork just to change the seals on my 04 Crf450r?

[RockyMountainATVMC]

@SuperDuke1995 - If you just want to cahnge the seal, no. You don't need to take apart the inner chamber. Howerever; why not?  It most likely could use some freshening up anyway.

[dggfhdfghdf]

I guess I wont be doing this while drinking a lot, like usual. jeeez.

hey, thanks for all the great vids you guys put out.

[hovchov123]

Is it necessary to replace the dust seals(wipers) when replacing the oil seals?

[RockyMountainATVMC]

@hovchov123 - it is Necessary if the old ones are bad: however, it is always a good idea. Dust seals prevent dirt from getting to the seal thus prolonging seal life.

[RepsolRC211V]

is that work on 2006 YZ 125 with KYB SSS 48mm forks?

[RockyMountainATVMC]

@RepsolRC211V - it is actually a KX450f. Pretty much the same fork as your 06 YZ125 though.

[RepsolRC211V]

How much oil (mililiters) go in outer tube in that KYB 48mm?

[RockyMountainATVMC]

@RepsolRC211V - every bike is a little different. i just did a 2006 YZ250f. The manual called for 335ml.

[lacoronilla]

how I can do it on a KTM fork?

[RockyMountainATVMC]

Watch our cartridge fork seal video.

[1seamoreedus]

How about a 99 RM250. I believe the forks are SHOWA which leads me to believe they are Dual Chamber, but from your comments, I am inclined to believe they are cartridge?

[RockyMountainATVMC]

Dual chamber

[kellynkarr]

Thank you so much

[Boiydy]

basically the same question as surlybonds. I completed part one of the video tutorial.all was well then realised that I had totally forgotten about the inner fork cap tool so was considering just replacing outer oil and putting back together. however the rod is not offering any resistance and settles itself all the way compressed. does this mean somewhere along the line i managed to get air in the inner chamber? a fair bit did come out the bleeder holes. anyhow great vids keep em up

[RockyMountainATVMC]

when you say "bleeder holes", I assume you mean the holes at the top of the inner chamber on the side of the cartridge. If so, that oil is actually outer chamber oil, it shouldn't be leaking from the inner chamber. however, it sounds like you have air in your inner chamber if it isn't rebounding all the way. I would put new oil in the inner chamber as well.

[6dirtrider]

Is it possible to add oil to the outer fork tube chamber through the air bleeder screw hole on my '08 honda crf250r? If not, is there a way to do this without disassembling the fork?

[RockyMountainATVMC]

You can add it through the bleeder screw. You just have to determine how much.

[Braniacwitdatgat]

I have a 96 yamaha yzf 600, Is it a twin chamber ?

[RockyMountainATVMC]

I doubt it is, but not sure on the bullet bikes.

[helzer70]

i have a 03 kx 250, is it a the same or a twin chamber as showed in the video?

thanks for the video

[RockyMountainATVMC]

Nope.  Refer to our cartirdge type fork seal video.

[keenansundin13]

I have an 08 honda CRF250r is mine a twin chamber show in this video

[RockyMountainATVMC]

twin

[elliotmotoX]

Awesome help!

[dcsktr52]

i have a 2002 crf450r im am not sure if it has dual chanber or cartridge forks?

[RockyMountainATVMC]

it has Dual (twin) chamber.

[gzu47]

Does a 01 RM 250 have a twin chamber fork or a cartraige, I know it is a KYB but not sure which type.  Also with just exposing the seals like this can you replace the bushings?

[RockyMountainATVMC]

Cartridge type. The RM 250 didn't get twin chamber showas until 2004. yes you can change the bushings when the forks are apart.

[yamaha3595]

how often do u hav to do this on a crf250r?

[RockyMountainATVMC]

It depends on how often it is ridden and if the seals are leaking. Refer to your manual.

[andrewsvids]

dude i gotta do it on mine too... leaks oil all over back of truck and on trailer when transporting.

[yamaha3595]

o haha i just bought mine two days ago i was jw if u had to do it a lot or wat

[andrewsvids]

idk i got mine used and it was already leaking a little.

[wz1musik]

fantastic video, can this be done with the forks still in the bike yokes? my mate says you can?

[RockyMountainATVMC]

If you want to make the job 10 times harder than it needs to be, then I guess it is possible. I couldn't understand why you would want to do that though.

[Ganthug07]

is this the same kind on my 1999 ktm 250sx it has 50mm WP forks.?

[RockyMountainATVMC]

Nope. refer to our cartridge fork video. It is much more similar.

[JesseBoom700]

Do you by any chance know what type of forks an 01' yzf426 has? I downloaded a manual and it seems like a single chamber.

[RockyMountainATVMC]

You are correct. Refer to our cartridge fork video.

[pup2097]

I wish my kitchen was as clean as his

[dirkt40]

Your tutorials are fantastic!

Absolutely pro - well done in terms of A/V quality, narration, and best of all - easy to understand.

Having two boys (and me, dad) with dirt bikes I can't afford to run to the dealer for every little service requirement. So this is a superb resource.

Keep up the good job! I am looking forward to seeing lot's more!

Dirk (Cheltenham, ON, Canada)

[RockyMountainATVMC]

Thanks Dirk. I am glad you found them helpful. I have more coming; slowly but surely.

[kelstrophic]

where those off of a kx250f 09?

[RockyMountainATVMC]

close - 08 KX450F.

[kelstrophic]

dang i thought they came out with the black fork insise thing on the 08 250f not the 450s

[Matt56Honda]

no its off a kx450

[kelstrophic]

your a little late the guy who made the video told me

[RockyMountainATVMC]

Refer to your owners manual for service schedule. Some guys just wait till they leak. I do a couple times a year. Regarding the bushings, inspect them when you have them apart. If the Teflon is wearing off, they need to be changed. We sell seals and bushings separate, but we also sell a pivot works kit with everything. Yes, they are machine specific.

[brawg65]

great vid guys. I really appreciate you all putting this type of information out on the web! Props!

[alpinestars1111]

hey can you guys make a video on how to change a crank seal i would really apreciate it!!

[anthony8219]

what kinda bike do you have...cranks seals are super easy on my 2 stroke

[atomicpunk2002]

Another quick question, If I want to just change the oil in my forks, can I just undo the top cap on them, and pour the oil out? Will all the oil come out? and then I just top it back up and bolt it all together?\

[RockyMountainATVMC]

That won't work so well. You might be able to get all the oil out of the outer chamber, but not the inner. Also, if you are going to go to the effort to take the forks off the bike, you may as well put new seals in, make sure you get all the old oil out, and get the right amount of new oil in by taking the forks apart.

[surlybonds71]

In reference to the above post by atomicpunk2002, if you do open only the outer cap, invert the forks, and drain all of the fluid from the outer chamber-will you lose any of the oil from the inner cartridge? That's precisely what I did, I just wanted to change out the outer oil and start with a known quantity for suspension tuning purposes. Now I am afraid I may have lost oil from the inner cartridges. Should I go back in and do the entire procedure? Thanks by the way, your videos are the best!

[RockyMountainATVMC]

no you shouldn't lose any from the inner chamber doing what you said. I will do the same thing sometimes.

[atomicpunk2002]

Great help! Thanks.

I thought 5 would be too light? I should really read my manual haha

[atomicpunk2002]

Also, what weight oil comes standard in a CRF450, 2006 model?

[RockyMountainATVMC]

Yes it does have dual chambers. All CRF450 and CRF250s have dual (Twin) chamber forks. So does the CR250 97-2007. The 125 never got them. YZs started running them in 2005. The RM125 got them in 2001 and the RM250 got them in 2004. All RMZ450s have them. KX 4-strokes got them in 2006.

My CRF manual calls for 5 weight fork oil.

[atomicpunk2002]

Does a 2006 CRF 450 have Dual Chamber forks?

[fishon12345]

cool..

[DIRTYTRUBAN]

this is great. Thanks.

[TheXEnergy]

Just curious how often do you need to clean or change your fork seals?

[polyphasic1337]

Thanks, you guys are great!

[mxchamps]

this is great. Thanks.

[dezertrider1]

Perfect! Exactly what I was looking for!

[mxracerguy]

great video! Best on YouTube. This helped a ton on my CRF fork seals.