Question about 1983 Honda GL 1100 Aspencade Gold Wing

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Fork oil quantity

I have a 1980 Honda cb900c I'm replacing the fork seals on. What I don't know is how much oil to put in since it is also an air ride system?

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I have a 1982 CB750C the manual says the quantity is the same for all bike before 1982 it says 6 ounces for the air assist fork models. this is from a clymer manual i recently bought. Highly recommend getting one

Posted on Jun 28, 2009

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1 Answer

1980 Honda CB900 Custom clutch slips


Hi, Rtbelless and the usual suspects are:
1. Clutch controls improperly adjusted.
2. Insufficient clutch spring tension.
3. Friction discs or steel discs are worn or warped past specs.
4. New wet clutch not pre-soaked for 24 hours.
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Just changed the oil in my 78 cb750 and now the clutch slips lot...
Honda 1980 CB900C Shop Manual
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May 09, 2012 | Honda CB 900 Hornet Motorcycles

1 Answer

I have a 2002 flstc , just replaced the " fork seals ", still leaking on left side. i was told to replace " oil seals " under the " slide tube cap " and spacer. will this...


Well, yes. The fork seals are located at the top of the fork slider un the "slide tube cap". This makes me wonder exactly what did you replace when you say that you just replaced the "fork seals". To get to these oil seals, you have to disassemble the forks tubes. Remove the front wheel and fenders. Down where you took the axle out, look up into the end of the slider and you'll see a socket head bolt, 6mm. Loosen this bolt before you take the tube out of the triple tree. Remove and repair one tube at the time. When you get the slider off the top tube, you will see a retainer ring in the top of the slider. The seal is under this ring. The new oil seals must be replace squarely in the tube. When you reassemble the tube and put it back in the triple tree, there is a specific amount of fork oil that must be added to each tube to properly refill it. You must use the "dry" quantity when refilling the fork tube because you disassembled and completely drained the tube. I'm sorry but I don't have this quantity of fork oil for this late of a model bike. I work on the earlier model bikes only.

good luck
steve

Jul 19, 2011 | 2000 Harley Davidson FLSTC Heritage...

1 Answer

Keep having leaking fork seals.have replaced seals and oil after every ride lately.(4)have tried two brands of seals last time disasembled whole of forks cleaned every part,shims everything and had...


G'day. A couple of suggestions-
Damage to the fork slider-chips or dings.
Too much oil in the fork on re-assembly can cause the seal to go.
Worn or loose fork bushes will flog the seal prematurely.
When you transport the bike-if you don't use a seal saver can pop the seals.

So let me help with these.

Be sure that the fork slider is not scored,dinged or damaged on th surface.

A good double check of the oil quantity is to ensure that when you have re-filled the tube with oil & primed it(worked the air out of it), the oil level should be 100 to 110 mm from the top of the leg to the oil with the fork fully compressed. If the level is less than this-drop it to 100mm.

To check the fork bushes-try pull on the front forks front to back(wobble) & feel for looseness in the bushes.

And finally-When you transport the bike-put a chock(I use an empty 5ltr oil container-but you can buy propper chocks from the bike shop) in-between the forks at top of the front wheel .
Now when you pull the front end down it will stop on the chock & stop the front forks being under excessive compression for extended periods-so it saves the fork springs from sacking out too.
I hope this proves helpfull.
Kind regards Andrew Porrelli

May 20, 2011 | Sherco 5.1i Motorcycles

1 Answer

I have had the same fork leak after being replaced two times,on my o1 rd king,whats the deal was that a bad year fork seals,leaking again.


First off, make sure you or whoever is doing the work is installing the correct seal in the proper direction. A seal put in backwards will leak like crazy. Also, make sure you're putting the correct amount of fork oil in once you get finished. There are usually two different quantities of oil listed. One is a "WET" quantity that you add when you simply drain the tubes and refill them. The other is a "DRY" quantity that you put in whenever you disassemble the tubes. I usually use 30 wt. fork oil. You shouldn't be having a problem unless you have something really bad wrong. The fork tube must be sized to fit the bushings inside the lower fork tube (slider) so the seals should work.

Good Luck
Steve

Apr 19, 2011 | 2001 Harley Davidson FLHR - FLHRCI Road...

1 Answer

1981 Honda CB900 Custom carburetor parts


Hi, Darrellmulli for more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Motorcycle Carburetors Parts for Honda CB900C eBay
http://wincycles.com/p1408/Honda-CB900C-Carburetor-Repair-Kit-1980-1982/product_info.html
Honda 1980 CB900C Shop Manual
https://www.partsfish.com/page/oem-parts-for-honda
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Mar 06, 2011 | Honda CB 900 Hornet Motorcycles

1 Answer

Blow-by of the left front fork 'seal' (Honda M/C 1981 cm400c)\r\nI also own 1980 (same) but it doesn't have the 'air' added on top like this '81. . . 1) question: ` Could I just drain the fork oil...


Probably the reason the fork seal is blown is too much air pressure. Definitely fix the seal and put in the correct amount of oil. You do not have to put air in to the front forks if you do not want to. To properly set up your suspension, set your rear shocks first, hard for two, soft for one, etc. Now load the bike, you or you and the passenger. With the front forks set to near max pressure (only 12 to 14 pounds air pressure do not go over max recommended pressure) bounce on the motorcycle seat and bleed off the pressure in the front forks till the front and back of the bike drop together. This is the correct way to set up your suspension. A bicycle foot pump with a pressure gauge works best works best. You will be near max pressure in one small hand squeeze of the foot pump. You will find it only takes 7-8 pounds of pressure to set up your bike. Just remember, You do not have to put air pressure in to your front forks, they will work just fine. You just wont benefit from the adjustable design.

Sep 09, 2010 | 2002 Buell M2 Cyclone

1 Answer

Fork seal replacement


what do you want to do, can you do it yourselves the changing process and do you have the required fork seals, oil and tools to remove fork seals? Do you know how to take and release the forks from your bike?

Apr 13, 2010 | 1980 Honda CX 500 A

1 Answer

FORK OIL AMOUNT ON A 1980 HONDA CB900 CUSTOM


According to Haynes, the Honda CB900C Fork capacity (filled with ATF) is 9.5 oz on the 1980 model and 9.8 oz on the 1981 model.

Aug 31, 2009 | 1995 Suzuki GS 500 E

1 Answer

Weaping fork seals.


a trace is normal, to much is not. that probable is due to dryed out fork seal, as they ere not getting lubed due to inactivity. the air fittings are for ajustable damping. if you ride 2 up or yourself being heavy or you just want a firmer fork suspension. i don;t know the range for your bike. try asking the dealer.or just put in 5 lbs. and try. if the presure doesn't last then you have leaky seals......

Jul 21, 2009 | 1983 Suzuki Gs 550 L

1 Answer

How to replace fork seal?


Angela, do you have a Clymer, Hayne, or service manual for the bike? If not you should get one, there is a lot of valuable information in there even if you don't do all the work yourself.

Replacing the fork seal requires putting the front end in the air, disconnecting everything from the front wheel (brake lines, speedometer cable if there is one), and dropping the wheel and fork tubes CAREFULLY to separate the two pieces of the fork tubes. Then grab the old seal and replace it with the new seal.

This short description is a VERY abbreviated and simplified version. It's not hard once you have done it a couple times but be very careful not to bend anything in your forks. They have springs inside them too. Change the oil while you are in there. Usually 10 or 15 weight fork oil but look in your manual. If you can't find a manual post again with your bike's year and we will see what we can come up with.

Apr 24, 2009 | 1980 kawasaki KZ 1300 A2

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