clutch


Information and questions on GL1200 Goldwings (1984-1987)
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de_colt
Posts: 4
Joined: Sat Nov 21, 2009 12:43 pm
Location: antwerpen
Motorcycle: 1984 gl aspencade 1200

clutch

Postby de_colt » Mon Mar 01, 2010 11:42 am



Hi,

I am Tonny a new goldwing owner 27 years old, before this one i owned a silverwing 650 from 83.

I am a new member here and i have bought a gl 1200 from 84 aspencade, now i have a cluth problem.
I am a car mecanic and it feels like a worn out clutch, but now i have read that the problem could be wrong motot oil.
If i drive away whit it it takes long before the clutch responds (almost at the end), and if i shift up rapidly ist wil slip. If i shift up slowly it works fine.

Sow my question is what maybe the problem and is it posibel te change the clutch whit the engine in the bike.



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WingAdmin
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Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: clutch

Postby WingAdmin » Mon Mar 01, 2010 12:05 pm

First thing I'd do is replace the clutch hydraulic fluid and bleed it.

Second is look at the oil you're using. Synthetic oil or oil with friction modifiers can cause exactly the problems you're describing. Try using a known motorcycle oil such as Valvoline or Motul and see if it makes any difference.

If neither of those have any effect, have a look at the clutch plates themselves. If it's the same as the 1100 (and I'm pretty sure it is), you can remove the clutch plates with the engine in the bike - but if you need the remove the clutch basket, the engine has to come out. If it's just worn plates, you can do the whole job without pulling the engine.

If you haven't already, download the GL1200 service manual from the Manuals page here and have a read through it.

de_colt
Posts: 4
Joined: Sat Nov 21, 2009 12:43 pm
Location: antwerpen
Motorcycle: 1984 gl aspencade 1200

Re: clutch

Postby de_colt » Mon Mar 01, 2010 1:08 pm

I have used half sintetic 10 w 40 car oil

and if there is air in the clutch fluid then it won't declutch or won't declutch al the way so i would think that the fluid is fine, correct me if i am wrong, the bike declutches fine but when i release it it responds at the last moment about 3/4 when the handel is released. (Sorry for the bad english) And thas the reson why i thought that the plates are worn out .

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WingAdmin
Site Admin
Posts: 17046
Joined: Fri Oct 03, 2008 4:16 pm
Location: Strongsville, OH
Motorcycle: 2000 GL1500 SE
1982 GL1100A Aspencade (sold)
1989 PC800 (wife's!)
1998 XV250 Virago (sold)
2007 Aspen Sentry Trailer

Re: clutch

Postby WingAdmin » Mon Mar 01, 2010 1:16 pm

You're right about air in the clutch line causing the opposite problem - I was thinking more of sludge in the clutch fluid not allowing the clutch to engage as quickly or completely as it should.

In any case, I would definitely try to run straight non-synthetic motorcycle oil first and see if it makes a difference, before pulling the clutch apart.

de_colt
Posts: 4
Joined: Sat Nov 21, 2009 12:43 pm
Location: antwerpen
Motorcycle: 1984 gl aspencade 1200

Re: clutch

Postby de_colt » Mon Mar 01, 2010 1:23 pm

thanks for the fast reply, its the first thing i am going to do buying non sintetic bike oil
and if i think about it i will let you know if the problem is dissolved.

de_colt
Posts: 4
Joined: Sat Nov 21, 2009 12:43 pm
Location: antwerpen
Motorcycle: 1984 gl aspencade 1200

Re: clutch

Postby de_colt » Tue Mar 02, 2010 1:00 pm

well i have tryed other non syntetic oil today an took it for a nice drive sunny and 8° first de clutch was bether but stil it responded verry late, afer a few km i drove more sportevly and the clutch started slipping again. i stopped a few times for a short period and the clutch started to get worse and worse so unfortenetly it didn't work so this weekend i am going to look at the clutch.
at 67000 miles it can be worn out i think :)

dagambler
Posts: 1
Joined: Mon Mar 22, 2010 9:13 pm
Location: houston,texas
Motorcycle: 1985 GL1200A aspencade

Re: clutch

Postby dagambler » Mon Mar 22, 2010 9:29 pm

this si my experience with my 1985 GL1200A. taking it for lunch the clutch would not fully disengage to shift gears properly.I rebuilt the master cylinder and bought a new slave cylinder also bled system. still would not fully disengage.finally removed engine to get to the clutch and found the spring plate had come apart bunched up on one side of clutch pack.

cooter
Posts: 2
Joined: Sun Mar 21, 2010 9:19 am
Location: Crediton,ontario
Motorcycle: 1969 T120R Bonneville
1978 XS 650 Yamaha

Re: clutch

Postby cooter » Fri Mar 26, 2010 9:51 pm

Re: synthetic oils: I agree you should not run automotive oil (mineral or synthetic) in motorcycles but synthetic motorcycle oil is IMHO is very good for our Wings. It will not cause any clutch problems and in my experience the bike shifts better, engine is quieter and I believe it provides better lubrication especially in high heat and/or high load conditions.
As someone already mentioned, first renew clutch and bleed thoroughly. If problem is still the same as you have described, then it does sound like the clutch itself requires attention. By the way, the bleeding operation is made super easy if the original bleeder fitting at the clutch slave cyl. is replaced with a "Speed Bleeder" fitting. (also on brake calipers). ****


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