Fork Oil - 600RR.net
Troubleshooting Having trouble with your bike? Common know issues or trobuleshooting questions here.

Reply
 
LinkBack Thread Tools
post #1 of 39 (permalink) Old 12-07-2007, 12:35 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Fork Oil

Are there any How-To's on how to change the front fork oil? My bike is all apart for the winter and its got like 26k milez and figured it would be a good time to do a lil maintenance.

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
Sponsored Links
Advertisement
 
post #2 of 39 (permalink) Old 12-07-2007, 12:37 PM
Moto GP Racer
 
MXRider's Avatar
 
Join Date: Mar 2007
Location: Virginia
Posts: 9,216
Thanks: 70
Thanked 144 Times in 91 Posts
Feedback Score: 17 reviews
lol 3 threads. i only have it for the inverted forks.
MXRider is offline  
post #3 of 39 (permalink) Old 12-07-2007, 12:44 PM
Knightslugger
Guest
 
Posts: n/a
that's kinda weird... three threads, 1 of which had an original post...

MXRider, any chance you could upload it somehow?
 
post #4 of 39 (permalink) Old 12-07-2007, 12:47 PM
Moto GP Racer
 
MXRider's Avatar
 
Join Date: Mar 2007
Location: Virginia
Posts: 9,216
Thanks: 70
Thanked 144 Times in 91 Posts
Feedback Score: 17 reviews
^its more of a mental how to. altho im thinking of making a diy write up soon. as soon as i get some fork parts in.
MXRider is offline  
post #5 of 39 (permalink) Old 12-07-2007, 12:48 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
I got an 04 BTW. Is it generally a good idea to change the seals at the same time? Mine are not leaking at all, and i don't really want to mess with them if they are still good. Does the fork oil start to break down and lose some of its..i dont know....suspension properties?

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #6 of 39 (permalink) Old 12-07-2007, 12:57 PM
Moto GP Racer
 
MXRider's Avatar
 
Join Date: Mar 2007
Location: Virginia
Posts: 9,216
Thanks: 70
Thanked 144 Times in 91 Posts
Feedback Score: 17 reviews
yes the oil gets dirty which will cause more friction. just replace the fork seals at the same time. otherwise u will be fixing them down the road.
MXRider is offline  
post #7 of 39 (permalink) Old 12-07-2007, 12:59 PM
Knightslugger
Guest
 
Posts: n/a
don't you kinda HAVE TO replace the seals?
post #8 of 39 (permalink) Old 12-07-2007, 01:04 PM
Moto GP Racer
 
MXRider's Avatar
 
Join Date: Mar 2007
Location: Virginia
Posts: 9,216
Thanks: 70
Thanked 144 Times in 91 Posts
Feedback Score: 17 reviews
on inverted forks, no. u can just remove the caps and drain the old oil and replace it.

on the older forks tho i think u have to at least slide the seal out to change the oil. conventional forks are very easy to work on. easier than the new style forks.
MXRider is offline  
post #9 of 39 (permalink) Old 12-07-2007, 01:07 PM
Knee Dragger
 
Join Date: Aug 2007
Location: Orange County, CA
Posts: 218
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 3 reviews
Yes fork oil does start to break down and lose its "suspension properties". If you just want to change the oil then it is pretty easy. While you have your forks out of bike, I would change your oil seals just as preventative maintenance (they arent that expensive). Also get some really good oil, also you should take this opportunity to realize that this is the perfect chance to tune your suspension better. For example I run a heavier weight fork oil that helps towards stiffining your suspension by slowing the hydraulic damping. I switched to 7.5 weight from 5 weight. Make sure you also use a high quality synthetic oil, I use Motul fully synthetic 7.5wt race oil and I would recommend that. Your forks are filled almost all the way to the top with oil. I say "almost" because there is a slight air pocket at the top that is intentionally left to act like a spring as it is compresses by fork travel. If you raise your fork oil level and make that smaller air pocket smaller, it acts like a stiffer spring. I dont remember the #'s off of the top of my head, but with the correct weight oil, the right oil lever height, and the right settings, one of my buddies races on BONE stock forks in the WERA expert class and regularly finishes top 5.
dach4676 is offline  
post #10 of 39 (permalink) Old 12-07-2007, 02:20 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Ok, I am 135 lbs, so what fork oil weight would you reccomend? For the fork seals, don't you need like aa special tool to push the seal out or something? Fooling around with the front forks is completely new to me, so i am jsut trying to figure it out.

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #11 of 39 (permalink) Old 12-07-2007, 02:42 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
https://www.600rr.net/vb/showthread.php?t=76090

Fork oil is not dependent on the weight of the rider. Springs are what you would need and unless you're dragging knee, stock is actually pretty good especially for your weight.
Wolley is offline  
post #12 of 39 (permalink) Old 12-07-2007, 02:44 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
Quote:
Originally Posted by MXRider View Post
on inverted forks, no. u can just remove the caps and drain the old oil and replace it.

on the older forks tho i think u have to at least slide the seal out to change the oil. conventional forks are very easy to work on. easier than the new style forks.
Older forks don't need to remove the seal. Much easier than the newer cartridge forks
Wolley is offline  
post #13 of 39 (permalink) Old 12-07-2007, 02:54 PM
Moto GP Racer
 
MXRider's Avatar
 
Join Date: Mar 2007
Location: Virginia
Posts: 9,216
Thanks: 70
Thanked 144 Times in 91 Posts
Feedback Score: 17 reviews
i have the seal driver from motion pro, as well as the seal bullit.

getting them out is easy, its driving them back in that u have to be gentle. u dont want to damage the seal when putting it back in.
MXRider is offline  
post #14 of 39 (permalink) Old 12-07-2007, 04:00 PM
She was Holding The Magnifying Glass
 
BOBO's Avatar
 
Join Date: Nov 2005
Location: Ozarks
Posts: 406
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 10 reviews
Your weight is perfect for the soft honda forks. I slid one tube out at a time,remove the spring,spacer and washers. Turn tube upside down, let it drain, pump it 10 times or so, let it drain more. Turn tube rightside up and the slider all the way down, get some 10 weight fork oil and the right quanity, pour half of it in, pump the slider a few times slowly, pour in remaining oil, re-install washers,spacer and spring. It took me about 2 hours from start to finish for both tubes.

Getting old is NOT for pussies!
If I were 4 foot tall I'd have a BIG D
BOBO is offline  
post #15 of 39 (permalink) Old 12-07-2007, 05:03 PM
 
Join Date: Aug 2006
Posts: 335
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 2 reviews
Quote:
Originally Posted by Wolley View Post
Older forks don't need to remove the seal. Much easier than the newer cartridge forks
Wolley is the man...he taught me how to do mine.
Macon663 is offline  
post #16 of 39 (permalink) Old 12-07-2007, 05:38 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Slide each tube outta the triple one at a time? Is that what you mean? And when you fill the tubes up, do you want to fill them up when they are perfectly vertical? Or fill them when they are on the bike

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #17 of 39 (permalink) Old 12-07-2007, 05:46 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
I jsut read that other thread..So on the 03-04, all you need to do is take the cap off and pour out the oil and you dont have to worry about that spring compressor thing?

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #18 of 39 (permalink) Old 12-07-2007, 05:48 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Someone recommended 10wt and someone else recommended 7.5.....What comes stock with the bike and what do most people use?

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #19 of 39 (permalink) Old 12-07-2007, 06:43 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
Quote:
Originally Posted by shiftn3rdon1 View Post
I jsut read that other thread..So on the 03-04, all you need to do is take the cap off and pour out the oil and you dont have to worry about that spring compressor thing?
The 03-04 is still a cartridge fork. The best way to change the fluid is by setting an air gap. The only way to do that is to remove the cap and springs.

Depending on the type of riding you do, setting the fluid by volume is fine. To do that is even simpler. You do not remove the cap, you simply pour out the old, cycle the damping rod several times until the fluid is out and then fill to the correct volume
Wolley is offline  
post #20 of 39 (permalink) Old 12-07-2007, 06:59 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Ok last few questions. How do you pour out the oil without taking off the cap?? And what is the correct volume of fluid?

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #21 of 39 (permalink) Old 12-07-2007, 07:06 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
Quote:
Originally Posted by shiftn3rdon1 View Post
Ok last few questions. How do you pour out the oil without taking off the cap?? And what is the correct volume of fluid?
You can unthread the cap and let the fork tube slide down. Then measure what you remove and add exactly that much back in. If you want, PM me a # and I can talk you through it
Wolley is offline  
post #22 of 39 (permalink) Old 12-07-2007, 07:10 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Your talking about with the fork upside down, and drain it into a measuring device?

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #23 of 39 (permalink) Old 12-07-2007, 07:12 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
Yep. Even a clear container that can be marked would work as well.
Wolley is offline  
post #24 of 39 (permalink) Old 12-07-2007, 07:18 PM
Moto GP Racer
 
MXRider's Avatar
 
Join Date: Mar 2007
Location: Virginia
Posts: 9,216
Thanks: 70
Thanked 144 Times in 91 Posts
Feedback Score: 17 reviews
u can call the dealer and ask how much fluid comes stock and then use a ratio rite. thats what i did.
MXRider is offline  
post #25 of 39 (permalink) Old 12-07-2007, 07:31 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Ok so, my fork seals are still good so im not even going to bother messing with them. So pretty much all i have to do is losen the cap, take the forks off the bike, empty the fluid out of the tubes, clean the springs, and then put springs back in, filll them up and put the covers back on?

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #26 of 39 (permalink) Old 12-07-2007, 07:31 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
OEM Specs for forks
ProHonda SS-8
531+- 2.5ml (18+-.08oz)
Air gap 110mm (4.3in)

Volumes are assuming dry forks and these are not totally dry, that's why I prefer to set by the air gap or measuring. Over filling them a little won't hurt though
Wolley is offline  
post #27 of 39 (permalink) Old 12-07-2007, 07:33 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
Quote:
Originally Posted by shiftn3rdon1 View Post
Ok so, my fork seals are still good so im not even going to bother messing with them. So pretty much all i have to do is losen the cap, take the forks off the bike, empty the fluid out of the tubes, clean the springs, and then put springs back in, filll them up and put the covers back on?
Springs can not be removed unless you take the cap off the cartridge
Wolley is offline  
post #28 of 39 (permalink) Old 12-07-2007, 07:36 PM Thread Starter
Not right now chief, im in the f'ing zone
 
shiftn3rdon1's Avatar
 
Join Date: Dec 2005
Location: MILWAUKEE
Posts: 4,495
Thanks: 0
Thanked 4 Times in 4 Posts
Feedback Score: 4 reviews
Well thats what i meant, im gonna loosen then when still on the bike and then take them off when the tube is off the bike.

Bungle in the Jungle!!!



Beep Beep m' Beep Beep YEAH!!!
shiftn3rdon1 is offline  
post #29 of 39 (permalink) Old 12-07-2007, 07:43 PM
World Superbike Racer
 
Wolley's Avatar
 
Join Date: Jan 2005
Location: Lancaster, PA
Posts: 1,876
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 4 reviews
Maybe you misunderstood me or I you, but the cap is unthreaded from the upper tube then the spring is compressed and the cap removed from the cartridge. Only then can the spring come out. If you are not removing the cap from the cartridge then the springs will not come out. If you are removing the springs then the best way to set the oil level is via the air gap
Wolley is offline  
post #30 of 39 (permalink) Old 12-07-2007, 07:50 PM
RTR
Knee Dragger
 
Join Date: Oct 2007
Location: Heber, Utah
Posts: 131
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Angry Fork Oil???

Fork Oil????? Now is that anyway to show respect for one of the things revered more than gold to most people on this planet, specially to motor heads like us here. Now apologize before we have to call your mother!


:icon_supe Hijack over.
Over!!
RTR is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the 600RR.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome