Showa SFF Fork Rebuild & Seal Replacement Part 1 (Left Fork)
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- Опубліковано 2 сер 2024
- www.rockymountainatvmc.com/?ut...
The Showa SFF Forks or Separate Function Forks are an all new fork set designed to not only save weight on the bike, but these also give the rider the ability to adjust the fork ride height and preload via the adjuster on top of the right fork. This new design achieves a lighter overall weight by separating the entire damping assembly into the left fork and then placing a heavier spring in the right fork hence the name Separate Function. Replacing motorcycle fork seals isn't a difficult process as long as you take the correct steps and have the right tools but this is something every motorcycle owner should know how to do. This video walks you through the rebuild process of the left fork which houses the damping assembly and it also shows you what things to look for in order to keep your motorcycles suspension working correctly. Rocky Mountain ATV/MC carries all the parts and tools and fork oil you need to completely rebuild your forks and replace your fork seals.
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will it work if I loosen the bottom bolt on the fork and take the whole cartridge out to change seals? I dont have spring compressor to take fork cap off...plus don't u have to set the preload or rebound settings before u start
Great Video. Very helpful.
How did you just pushed it out of the bottom fork lay ? Mine is under some pressure and cant just push it out.
when i install the inner cap i hear air is coming out. is that normal ? Got the Showa 47mm from a Drz 400sm. the manual says there is coming in 182ml oil in it .
Awesome, detailed video! Thanks
Thank you! ..and thanks for watching
Great video. Question for you. How much oil goes into the inner chamber? I should have 340cc but I’m a little confused, should 340cc be the total for the whole shock, inner/outer combined or just the outer part. If 340cc is the outer part only how much goes into the inner chamber? I cannot find anything online for the specs and do not have a manual. Thanks
does any one know how many clicker setting on the rebound for the 2013 kx250f and it says in the manual 20 +- 4 now im little worried becuase my rod is stuck in the valve portion of the fork but yet my clickers still go 16 out and 16 in. should i be worried
Great vid! Thanx!!
Someone help me! Just did my fork seals on my left fork and it's REALLY soft compared to the right fork. Is that a normal thing since theres no spring in it? I even went to replace oil in the inner cartriage and outer chamber...i cant figure out for the life of me whats going on? Any tips?
cuanto aceite lleva cada barra de la suspensión delantera de una RMZ 250
Can anybody pls tell me the oil amounts req'd as I haven't got a Manuel! Thanks
Hello, tell me how much oil is poured into the feathers?
Thanks heaps for doing this. You guys are the best.
What’s the point of the suctioning tool if it will bleed the excess
Although this is lil old just did my right fork on my 2015 crf250r which has the sff fork and the right one is just oil and it was a lot easier than I though thanks to you guys.
MARIOT199 Awesome, thanks for checkin out our video!
+MARIOT199 Is there a special wrench to get the bottom out on the air fork?
i have only done the right side the oil side so idk about the left side but i dont think so. only special tool i had to use is to take the top cap off
Lol I figured it out. You need 22mm Allen with a hole to fit over the Schrader valve
Chris Topher jim.snell
How much oli did you use in 5:48 and in 11:27?
need a video for SFF Air Forks
Salut , je viens vers vous pour savoir la quantité à mettre dans le bas de fourche ? Et dans la cartouche avec la seringue combien de centimètres s’il vous plaît ?
can some one please tell me what the inner is and outer on the forks on a 2014 rmz450 I have looked everywhere please rocky Mountain I've even called rg3 and they just told me the outer was 300cc I need help please what is the fork oil height for the inner and outer
Hey man ever find an answer I'm in same boat
how much oil does each front suspension of the kx 250 r 2017 carry?
I would like to know this as well
do a kyb psf fork!
Am I able to do this without the oil level gauge? Can I just over fill it and then it will come out of the holes
You can do it that way. It just get's pretty messy with all the oil that comes out of the bleed holes. But if you don't have the gauge, then that's you're best bet. Just make sure you put your hand around the holes when you slide the inner cartridge back in. This is the method used in our showa 49mm fork rebuild video.
I dont even know if you guys respond to videos this old but is it normal for the left side to not return to full height once all back together? I just did both forks (ive never owned sff forks before) and the damper rod was smooth and returned to its normal position fine. but once all together, when i set the fork on its own weight on the ground it sinks a bit compared to the spring side. Is this normal because the spring is on the other side or is something wrong?
Don't worry about that. Some manuals will give a measurement for the length of the inner fork tube with everything assembled and the fork fullly extended. You can check that to make sure the fork is assembled correctly. The only thing holding that fork up with it sitting on it's own weight is air pressure that should be set at atmospheric pressure when fully extended, and only ramps up as the fork is compressed.
-Charles
@@rmatvmc awesome, thank you very much ill check it out today
can anyone tell me that this are the same forks as are on my 2015kx250f they are stock and are shows sff the ones in the thumbnail just look different
The Showa SFF forks are what came on your bike from the factory so unless someone changed them, these will be your forks.
Is anyone else having trouble moving the forks up in the triple clamps, my right fork won’t move up, I think it might have something to do with the fact that that one doesn’t have rebound
hi guys,
i have another trouble with the inner cartridge oil change.
i take off the cap, i drain old oil, i let the fork upsidedown for some time.
then i put the new oil (180ml as the manual say), i make the air come out pushing and pulling several times the inner tube and last i close the cap back with the inner tube completley extended.
the problem is now; when i push the inner tube it wont come out completely extended.
it come out for 4 or 5 cm than it stops.
and if i try to pull it out it returns inside as if there is vacuum inside.
what i should do?
tanks.
federico moroni Sorry to hear of your troubles. Your bike is equipped with the dual chamber forks so I would refer to our Dual Chamber Fork Rebuild videos to begin. Here is a link to the first video Fork seals, change on motorcycle part 1 (of 2), twin chamber . It sounds like one of your inner cartridge seals might be leaking. You have a seal below on the damper rod and one up top with your free piston. Is this happening on both forks or is it just one of them? If you've already tried bleeding the inner cartridge multiple times with no luck, replacing these seals would be my next recommendation.
solved.
i didn't put enough oil inside.
probably 180ml was less. now everithing work as well
tank you for the messege.
What size are the Fork Cap wrenches? And if I am not asking too much, can you please link me it?
The fork cap is a 50mm cap and here is the link www.rockymountainatvmc.com/p/1056/13900/Tusk-Fork-Cap-Wrench
good good
2014 rmz450, video doesn't apply to this year on the right fork . spring compressor won't work as stated.
Scott Rapp hey man I'm trying to rebuild mine on my 14 rmz450 I cant find any where how much fluid goes in inner and how much in outer
What oil and quantity is added in the video 5:52 11:18?
if you go to race tech's website and do a search for your spring rate and everything it will tell you how much oil to put in each. or try looking up your owners manual.
Is it normal for the left fork to make a clicking sound at the start of the rebound?
I'm not sure, I haven't ever noticed anything that sounds like this. Have you rebuilt the fork already?
Rocky Mountain ATV MC So I used this video and the tools you suggested. The video is very accurate. No issues. I replaced the bushing and seals. The noise I was hearing was the base valve spring. Thank you for this great video.
Rob S
Nice Job! Thanks for watching and let us know what videos you'd like to see next!
hi, i'm tryng to replace seals on my suzuki rm 125 2008... i have showa forks.
i did everything u said, now i have to separate fork tubes. but they wont come out.
i heated with a heat gun (an electric one) but nothing, they remain togheter.
i alredy removed dust seal and the metal ring.
what can i do for separate fork tubes?
federico moroni Those fork tubes should come apart if you have already removed the retaining ring. In some cases I have seen the seal almost weld itself to the outer tube in a sense, and what that does it causes the outer bushing to force itself up onto the inner bushing when you slide the forks apart causing the forks to basically jam themselves together. This makes it very difficult to separate the forks tubes so you are on the right track in applying heat. I would try giving it a little more heat and also some sort of lube up in there to see if the seal will pop loose. You basically just have to keep trying as there really isn't any other way to separate them without damaging expensive components. Try what you can and if you still have troubles you are welcome to call in and talk to me and I can try and help talk you through it. Ask to speak to a Tech or me (Wes) @ 1-800-336-5437
Rocky Mountain ATV MC
ok tank you very much for your support.
tomorrow i will try to give more heat and put some lube in the tubes...
i hope it will work.
just a last question. for retainig ring do u mean the metal ring up on the dust seal?
Rocky Mountain ATV MC
i did it.
put some ice in the inner tube and lot height in the outer one,
everything done!
thank you
federico moroni
Nice work! Those can be a bear sometimes so it's good to hear that you got it apart nicely. If you run into any other questions feel free to let us know!
hey does anyone know how much oil it takes for the left and right fork of kx250 2011...is it 5w 350cc left, 150cc on average?
We recommend you go off of what your service manual specifies for you year, make and model. From what i've researched, your measurements that you list match up. 350cc's and 150cc's inner.
Hello !How much oil should there be in the internal 135 mm cartridge ?
KX450f 2013
the rebuild of SFF fork seems a big hassle, any reasons why bike manufacturers use that?
they did it for weight
Showa suffit
My oil seal is stuck in the fork tube, tried prying it out, any ideas before I start trying by force?
+Brittany Nelson You've separated the outer tube from the inner tube already correct? Or are you at that point? Following the steps in this video should help you complete the job.. let me know what step you are on and we'll go from there!
+Rocky Mountain ATV MC Thanks for getting back to me. I ended up using a heat gun to the outer tube and a door trim tool to pry the oil seal out. All good now and back together. Great video!
Brittany Nelson Nice job! Thanks for visiting our channel.
cuanto aceite lleva la suspension?
Bueno, depende con cada modelo de bika.. recomendamos que chequee tu manual. Va a necesitar buscar la medida por tu propia motocicleta. O si quieres, me dices la marca, model y ano y te lo busco?
Rocky Mountain ATV MC tengo una honda CB 600F del 2007 y voy a cambiar retenes de horquilla y aceite hidráulico, me podrías decir que cantidad de aceite hidráulico lleva cada barra?, me sería de gran ayuda, muchas gracias, mi correo es, gregovero@gmail.com
Gregorio Bizcocho En el manual lo dice asi que con cada barra pide una medida de 4" pulgadas desde la parte superior del tubo. Significando que el nivel del aceite alcanza la medida de 4"
Akw
So the guy made a big mistake as far as explaining the cylinder unit oil height and valve assembly, for a showa sff fork the rod has to be fully out out to check height (obviously after u purge out the air) anyway after that the valve assembly goes in. rod has to be pushed in and let out about .79 inchs or 20mm then u should be good to install valve assembly, goofball dosent mention Any of this in the video which is a big step in my opinion as the oil height various depending on where the rod sits and having in the correct spot makes it easier to install valve and if u go and call their number they have no idea what ur talking about luckily I found manuel online explaining the cylinder unit as mine does not only outer tube hope this helps anyone not bashing this guy but u left out a important part leaving me confused and guessing