Servicing 426 forks, anything I should know?
Posted April 05, 2004 - 08:57 AM
I dont have a manual to work from, but I'm sure I'm up to the task.
My only questions are:
-do I need any special tools to accomplish what I mentioned above? (replace oil, seals and springs)
-in what order should I (or must I) tackle this in. I know the oil will go in last, but beyond the obvious, what should I know?
-Any recomendations on brand and weight of oil? I'm about 220# with gear and am an aggressive trail/desert rider.
Posted April 05, 2004 - 10:13 AM
Back out rebound clicker all the way and count clicks and record
When you pull/push the spring down, You'll need a 17mm open end wrench to remove the caps from the threaded rod...(sorry cant remember what it really called).
take the springs out
remove the nut on the threaded rod
take the white plastic piece out
pump the fork several times and dump the oil
pry the dust cover off with a screwdriver very carefully
pop the retaining clip out of the groove (holds the fork seal in)
pull the tubes apart...you can slide them in and out a few time till they pop apart
take the retaining metal piece off of the inner fork tube
Take the slide metal, washer, seal, and dust cover off.
Put a piece of plastic over the top of the inner fork tube and lube it with fork oil (to protect the rubber seal from the sharp edge of the tube...you'll see!)...Ive been using ENZO 01 weight with great results.
slide the dust cover, seal, washer, and slide metal on
put the retaining metal piece back on the top of the inner tube
Get your seal driver (make one from 2" pvc pipe...go to motomans site for directions) and seat the slide metal and washer into the groove of the outer tube....
seat you seal with the driver
pop the retaining ring in
seat your dust cover
turn over and compress fork fully
fill to top with oil
pump inner rod more than 10 times with 5" or so strokes...go go too far or you'll suck air
fill fork again...do over
fill fork again and pump outer tube more than 10 times but not further that 5 or so inches
let stand for about 1/2 hour to let bubbles escape
set oil height (i think stock height is 130mm) im 205-210lbs and I set mine at 115mm to help bottoming
reinstall fork innards in opposite order and dont forget to re-set your rebound
Posted April 05, 2004 - 12:14 PM
Posted April 05, 2004 - 12:37 PM
Posted April 05, 2004 - 12:58 PM
Posted April 05, 2004 - 03:02 PM
Posted April 06, 2004 - 02:19 AM
If you don't have a bonified syphoning tool to remove new fork oil if you overfill the tubes, a regular spray bottle nozzle work real well.It will remove very small amounts of fluid allowing a pretty precise measurement.
Yeah, don't buy a suspension suringe. I bought a large suringe for $2.00 at a local CO-OP store. Works great.
Posted April 06, 2004 - 02:41 AM
Posted April 06, 2004 - 02:46 AM
Is it necessary to remove the bottom valve assembly when replacing the seals? I don't have a 14mm hex drive. (allen wrench)
Posted April 06, 2004 - 06:38 AM
Posted April 06, 2004 - 07:05 AM
To your knowledge is there any difference between changing seals on the 450 or 426?
I've mostly been reccomended to use Enzo 01 or Yamaha's 01 fluid. I've been told Enzo is very similiar to the Yamaha brand (or even the same) for less $$.
Posted April 06, 2004 - 08:56 AM
Posted April 06, 2004 - 09:14 AM
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