Registered User
New to the board
Hi guys , I recently replaced the fork seals on my 250r and drained and replaced the fork oil but when I tried to pressurise them to about 7psi it read on the low pressure tyre guage but when I rechecked them it read 0.It seems as though they are losing pressure, or is it cos they only have a little air capacity that when rechecking I release the pressure? Also what keeps the air pressure in? is it the fork seals?
Just Too Addicted
Arm chair racerJust too addicted
Yes & yes.
Registered User
New to the board
So whats the best way to check the pressure?
Just Too Addicted
Arm chair racerJust too addicted
I've seen kits that allow you to add air equally at the same time via two hose attachments. I don't know for sure, but it may have a built in gauge on it as well. You can always run 0 air and use a heavier oil for the about the same result.
Registered User
New to the board
Was thinking that but just wanted cofirmation that it would work.
Cheers
New to the board
Arm chair racerNew to the board
You're not supposed to put air in the forks, it will blow the seals. The air valve is for bleeding the air. You're suspension builds pressure as you ride. If you want a stiffer ride, try a little more oil or a heavier oil.
Just Too Addicted
Arm chair racerJust too addicted
WRONG!!! The following is taken right off a 1985 250R brochure
Suspension, Front: 39mm air adjustable forks, 9.8-inch travel
Current Ride (Purchased new in Oct. 84) - 1985 Honda ATC 250R w/ ESR 310cc big bore kit
Wife's Ride - 2009 Polaris RZR 800
Kid's Rides - 2009 Yamaha Raptor 700, 2008 Yamaha Raptor 250
Former Rides - 1975 Honda XR 75, 1979 Yamaha IT 175, 1978 Honda ATC 90, 1980 Honda ATC 110
got sand?
New to the board
Arm chair racerNew to the board
That is pretty cool then. Every thing I have ever read about forks leads you to believe what I said earlier.
Just Too Addicted
Arm chair racerJust too addicted
You can and will blow the seals if you over pressurize them or over fill them with oil.
Current Ride (Purchased new in Oct. 84) - 1985 Honda ATC 250R w/ ESR 310cc big bore kit
Wife's Ride - 2009 Polaris RZR 800
Kid's Rides - 2009 Yamaha Raptor 700, 2008 Yamaha Raptor 250
Former Rides - 1975 Honda XR 75, 1979 Yamaha IT 175, 1978 Honda ATC 90, 1980 Honda ATC 110
got sand?
At The Back Of The Pack
Arm chair racerAt the back of the pack
J La,
Man I have alway's heard the same thing you said, the valve on top of the forks are for releasing built up psi. But then again, I've never read one way or the other in writing.
1985 Honda ATC 250 Big Red
"Ugly Betty" from the handlebars back it's a
1982 Honda ATC200es, from the handlebars
forward it's a 1988 Honda TRX 300 Fourtrax.
"If you wanna play, you gotta pay..."
Power User
Teaching quads a lesson
I put 2 pounds in my 250r forks and at the end of the day, one had blown fork seals, so, I'll do that again
Power User
Roostin Away
that air thing it to let air out only. not to let air in. it says it in my manual!
1974 atc 90 project underway cuzzztom
1985 atc 110 for sale
84 200s all original got off the first and only owner
new carb
maybe putting my 200x cam in it but not sure
old trike
1985 200x
12.1 piston
oil cooler kit
white bors cam
super trapp exhaust
uni clamp on air filter
350x front end
Just Too Addicted
Arm chair racerJust too addicted
Ok boys & girls, everyone take out their 1985 Honda ATC 250R Owners Manuals and turn to page 20. Mr. Vartiak15, will you please read from the top of the page.
"uhh, derrr, that air thing it to let air out only. not to let air in. it says it in my manual!
(laughter)
Settle down boys & girls. I think you have the wrong manual Mr. Vartiak15. I expect you to be better prepared next time. Here, let me read.
Front Suspension
The front suspension system uses air assisted front forks. The forks may be adjusted for the riders weight and riding conditions by adjusting the air pressure.
Air Pressure Adjustment
Low air pressure settings provide a soft ride and are for light loads and smooth riding conditions. High air pressure settings provide a firm ride and are for heavy loads and rough riding conditons.
Note* Use of more than 10 psi is not recommended because fork action becomes very stiff and oil seal damage may occur.
Current Ride (Purchased new in Oct. 84) - 1985 Honda ATC 250R w/ ESR 310cc big bore kit
Wife's Ride - 2009 Polaris RZR 800
Kid's Rides - 2009 Yamaha Raptor 700, 2008 Yamaha Raptor 250
Former Rides - 1975 Honda XR 75, 1979 Yamaha IT 175, 1978 Honda ATC 90, 1980 Honda ATC 110
got sand?
Within Arms Reach Of The Master
Arm chair racerLord of the trike
Every set of forks I've had I've set to 0. Block it off the ground so the front isn't touching, let the air balance to 0 using the air valves and presto, you have what I call the perfect set-up. IMO, you should use oil and different spring weights to change handling, not air. I don't really agree with Honda on that one.
'02 Honda 416ex - A seasoned blend of 11 herbs and spices
'04 Honda Recon - The yard machine and snow plow
'88 Honda CR250R - Another chapter in my torrid all terrain affair
Power User
Roostin Away
i agree.. no air pressure, just use different oil weights to vary your forks..
Ride it like you stole it! And never look back! They are too far behind to see!
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