News:

           Enjoy your FJ


Main Menu

Fork Oil Capacity?

Started by Scooterbob, August 20, 2010, 12:15:12 PM

Previous topic - Next topic

Scooterbob

I know the manual says capacity on front forks is something like 13 ounces.  Is it to be said then that only 1 quart of oil is enough to do a total rebuild?
Do not argue with an idiot. They will drag you down to their level and beat you with experience.


-----Bob G.-----

RichBaker

Rich Baker - NRA Life, AZCDL, Trail Riders of S. AZ. , AMA Life, BRC, HEAT Dirt Riders, SAMA....
Tennessee Squire
90 FJ1200, 03 WR450F ;8^P

carsick

Hey Bob,
I put a little extra in mine and still had some left in the one liter bottle. So a quart should do it. Just make sure it's trans fat free, healthier for your heart.
Doug

Scooterbob

Do not argue with an idiot. They will drag you down to their level and beat you with experience.


-----Bob G.-----

carsick


andyb

(84-90 = 424mL; 91+ = 446mL)

x2.

at most, 892cc.  A quart is 946mL.

892<946

Mark Olson

the quick way is fill forks with springs out and fully compressed. add fork oil to a measurement of 130mm from the top.

If you overfill, suck it out with a turkey baster. don't forget to move the forks up and down a few times for air purge.
Mark O.
86 fj1200
sac ca.

                           " Get off your ass and Ride"

Smoothops

I just replaced the seals on my '87 FJ1200, but I don't know how to go about filling the forks with oil.  In order to fill with oil, the anti-dive units have to be installed, so they will have to be detached from the brake lines, which means that the front brakes will need bleeding.  I just installed the empty forks, tightened only the lower clamps.  My plan is to fill them up from the top while they are already on the bike.  Has anyone done this? is there an easier way? Thanks for your input

andyb

Should work fine.  Leave the springs out and let the front end collapse down, then go by height.  You'll have to fudge a little because it won't be sitting dead level, but you'll manage.  I'd just suggest that you'll like it better with a little extra instead of a little short.

Mark Olson

Quote from: Smoothops on June 06, 2013, 08:19:26 PM
I just replaced the seals on my '87 FJ1200, but I don't know how to go about filling the forks with oil.  In order to fill with oil, the anti-dive units have to be installed, so they will have to be detached from the brake lines, which means that the front brakes will need bleeding.  I just installed the empty forks, tightened only the lower clamps.  My plan is to fill them up from the top while they are already on the bike.  Has anyone done this? is there an easier way? Thanks for your input

If forks are empty , use the measured capacity listed in the service manual.
Mark O.
86 fj1200
sac ca.

                           " Get off your ass and Ride"

Travis398

Quote from: Smoothops on June 06, 2013, 08:19:26 PM
 is there an easier way?

Yes, separate the anti-dives in the middle like this, and you won't lose fork oil or brake fluid 


When all you have is a hammer, everything looks like a nail.

RichBaker

Quote from: Mark Olson on June 08, 2013, 02:07:54 PM
Quote from: Smoothops on June 06, 2013, 08:19:26 PM
I just replaced the seals on my '87 FJ1200, but I don't know how to go about filling the forks with oil.  In order to fill with oil, the anti-dive units have to be installed, so they will have to be detached from the brake lines, which means that the front brakes will need bleeding.  I just installed the empty forks, tightened only the lower clamps.  My plan is to fill them up from the top while they are already on the bike.  Has anyone done this? is there an easier way? Thanks for your input

If forks are empty , use the measured capacity listed in the service manual.

You get better results when measuring the level. I like 130mm from the top, tubes compressed, no springs.
Rich Baker - NRA Life, AZCDL, Trail Riders of S. AZ. , AMA Life, BRC, HEAT Dirt Riders, SAMA....
Tennessee Squire
90 FJ1200, 03 WR450F ;8^P

Smoothops

Here is a pic of the beast