How much air do i put into my forks on a 350x.
Roostin' Away
Arm chair racerRoostin Away
How much air do i put into my forks on a 350x.
Just Too Addicted
Arm chair racerJust too addicted
just for a quick answer 0-7psi the max would b around 7 or 9...but you'll b safe with 0-7 and make sure each fork is the same!!!!
'85 ATC 250R
FMF Fatty & Power Core
Boyesen Rad Valve
38 PWK A/S
K&N w/PF (next purchase)
LSR +4 Axcaliber axle
LSR Duel row bearing carrier
DuraBlue Anti-fade (to be installed)
13/36 sprockets
'85 ATC 250R
Parts trike (maybe future build?)
Got The Holeshot
Arm chair racerJust too addicted
Zero lbs. is the correct amount. ANy more than that and you risk blowing out the seals. The schrader valves atop the forks are to bleed off built up pressure.Originally Posted by johnny's X
Check My Feedback before dealing with me
Roostin Away
Really, the air valve is just for the purpose of equalizing the air pressure inside the fork with the pressure outside. Once equalized, it should only need to be opened again with elevation changes, unless you have a fork seal leak.
'84 ATC70.....my 8-y.o. son's ride
At The Back Of The Pack
Arm chair racerFirst time rider
i thought you were suppose to charge the front forks ? correct me if im wrong
Thanks,
Adam
______________________
1985 ATC350X
-86 engine and plastics, DG rcm full exhaust, DG grabbar, Moose Carbon Bar, Moose bark busters, UNI air filter, Regina chain, ECA rear brake caliper, 22x11x9 Maxxis Razr 2 tires
1984 ATC250R
-Project trike, needs top end rebuilt
At The Back Of The Pack
Arm chair racerFirst time rider
charge them with nitrogen that is?
Thanks,
Adam
______________________
1985 ATC350X
-86 engine and plastics, DG rcm full exhaust, DG grabbar, Moose Carbon Bar, Moose bark busters, UNI air filter, Regina chain, ECA rear brake caliper, 22x11x9 Maxxis Razr 2 tires
1984 ATC250R
-Project trike, needs top end rebuilt
Roostin' Away
Arm chair racerRoostin Away
Well i guess iam still looking for the answer
not sure what to do
R.I.P. Hey Ron Racing-GIT IT RAG!
Got the holeshot
HE IS CORRECT !!! Back in the day "they" said to release ALL air from your fork's after each Moto ..... air is friction...friction causes heat...heat is not good for long term reliability of any equipment...
what i do is use 15 wt. oil "instead of 10 wt."and 1 to 2 oz extra oil in each tube
hope this helps some
"07" DR650 Suzuki Dual Sport
Wires, Hoses, & Digital Wizardry.
Got the holeshot
Johnny, I do not know the answer to your question:
But I do know that most of the answers you've received so far are not completely true. The forks on the 200X, 350X, & 250R are "air-adjustable", which means they were originally designed so you could add/release air to/from the fork legs, via the schrader valve, to adjust the fork action. However, that being said, I've never liked the fork action with air in them. I just thought the action with anything over 1-2 lbs. of air was way too stiff. The main hassle is trying to get just a little air in them. The fork chambers are so small that just checking the air pressure, when you have 1-2 lbs. in them, lets out all the air. Assuming you manage to get 1-2 lbs. in one fork leg, now you need to do the same to the other fork leg so they are matched.
And the myth that putting air in them will blow out your seals stems from people putting too much air in them via an air compressor. True, adding air to your forks, with their 5,10,20 year old seals will probably cause them to leak, if they aren't already, but with fresh seals, properly maintained forks, & respecting the manufacturer's air pressure limit, that shouldn't be a factor.
Red Rider's Sand Machine Updated 07/23/14
Check My Feedback before dealing with me
Roostin Away
My Kawasaki Tecate service manual clearly states that fork oil pressure is "atmospheric pressure". It goes on to state that "additional pressure is not recommended".
If you want to change the action/dampening of your forks, experiment with different oil weights.
'84 ATC70.....my 8-y.o. son's ride
Power User
Got the holeshot
and some nice PVC spacers between 1/2 inch and 1.5 inches
1986 Tri-z
1985 250r
1985 200s
1985 70[/SIZE]
At The Back Of The Pack
Arm chair racerAt the back of the pack
I believe they were intended to be able to be adjusted with air pressure to match the rear susp settings for heavy riders etc. I definatly wouldnt go over 8psi. If your a normal size guy and your forks are in good shape you wont need any air.
85 atc 250r;
PSI porting & head mods
fmf pipe & silencer
boysen rad valve & reeds
38mm air stryker
New to the board
Arm chair racerNew to the board
some people suggest adjusting by air,(usually those who are looking for a cheap fix) but like Yamahondaman said<but left out one part....with a Good set of springs,heavier oil and a few more onces of it, you will not need or want to put air in them
Last edited by dirtdog; 03-21-2007 at 11:08 PM.
---DAWG
85' 350x
86' tecate
85' 250r
Wires, Hoses, & Digital Wizardry.
Got the holeshot
All right now, I went and dug out the official 1986 Honda ATC250R Owner's Manual. I realize this thread was started by johnny's X, who has a 350X, which has "air-adjustable" forks as well, so I'm sure this portion of the manuals aren't all that different.
If the scan of my manual were at all legible, you'd see that Honda, or rather Showa, designed the forks to be air-adjustable.
Last edited by Red Rider; 03-21-2007 at 11:07 PM.
Red Rider's Sand Machine Updated 07/23/14
Banned
The day begins with 3WW
0 psi is typical but a little air will not blow out your fork seals. I used to run a few lbs in mine for MX racing. What you find is that at 0 psi, when you compress your forks, that 0 psi turns into probably 20 or 30 psi. Another 3 or 4 psi wont make or break it. Air is typically a bandaid for weak or sagging springs, as is adding preload spacers. Heavier fork oil will do nothing to help weak or sagging springs. Fork oil is for dampening, and heavier oil slows fork response.
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