Clutch Master Cylinder Bad?


Information and questions on GL1800 Goldwings (2001-2017)
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knuss3807
Posts: 2
Joined: Thu Jan 15, 2015 11:37 am
Location: Apple Creek, OH
Motorcycle: 2003 GL1800

Clutch Master Cylinder Bad?

Post by knuss3807 »



Hello,
2003 GL1800: My clutch master cylinder is not pumping any fluid. Is there a fix without replacing it?

It started with my clutch not completely disengaging. To my knowledge, I'm the second owner, the fluid has never been changed. I drained the system, removed and cleaned the slave cylinder, reassembled everything and now when I went to bleed the system, the master cylinder won't pump any fluid. The master cylinder was not disassembled, only wiped out to clean. Fluid level does not go down and there is no resistance on the clutch lever. I can see the piston moving back and forth. I don't have the snap ring tool to disassemble it but am willing to buy one if I knew what to get.

Thought I would run it by the experts before spending $200 on a new master cylinder assembly.


Terry D
Posts: 192
Joined: Thu Aug 30, 2018 3:35 pm
Location: San Antonio, Texas
Motorcycle: 2005 Honda GL1800

Re: Clutch Master Cylinder Bad?

Post by Terry D »

Just order a rebuild kit. At the Honda School we had to take them apart and put them back together and it is a really simple job. Clean the orfices, put new seals in and piston cleaned and everything back together. Fill with brake fluid and bleed and off you go.
It ain't the destination but the getting there. You are not lost until you run out of gas.
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AZgl1800
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Location: Lake Oologah Indian Territory USA
Motorcycle: 2009 Piaggio MP3 250cc https://imgur.com/foGDjgv

'02 GL1800 lives in Dawsonville, GA now.
My son is going to enjoy it for many years to come.

Re: Clutch Master Cylinder Bad?

Post by AZgl1800 »

I just did that to mine a couple days ago.

I replaced all of the rubber parts including the diaphragm under the top cover.
I also bought a new spring, just in case the old one "might be broken?" or just weak.

the total cost was very small... gave me piece of mind.

did the master and slave cylinders.
works good now
~John

'02 GL1800
2009 Piaggio MP3 250cc
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Asphaltmaniac
Posts: 314
Joined: Wed Oct 11, 2017 11:57 am
Location: Sparks Nevada
Motorcycle: 1977 Honda 550K. Sold.
1986 1200 Aspencade. Purchased as a non current brand new in the box 1988. Sold.
Black 2006 1800 Goldwing.
2017 BMW 1200 GS Adventure...

Re: Clutch Master Cylinder Bad?

Post by Asphaltmaniac »

I will add to this chorus...I did mine as well. Rebuild it, its easy.
knuss3807
Posts: 2
Joined: Thu Jan 15, 2015 11:37 am
Location: Apple Creek, OH
Motorcycle: 2003 GL1800

Re: Clutch Master Cylinder Bad?

Post by knuss3807 »

Thanks everyone! Rebuild parts are ordered.
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Asphaltmaniac
Posts: 314
Joined: Wed Oct 11, 2017 11:57 am
Location: Sparks Nevada
Motorcycle: 1977 Honda 550K. Sold.
1986 1200 Aspencade. Purchased as a non current brand new in the box 1988. Sold.
Black 2006 1800 Goldwing.
2017 BMW 1200 GS Adventure...

Re: Clutch Master Cylinder Bad?

Post by Asphaltmaniac »

You may find that the bushing on the clutch lever is worn as well. If you go to bike bandit and look up your clutch assembly its part #2.
$11 bucks or so from Honda.
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keithg64
Posts: 760
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Location: Geneseo, IL
Motorcycle: 2007 Gl1800HPNA Blue
2000 GL1500 Pearl Coranado Blue -sold

Re: Clutch Master Cylinder Bad?

Post by keithg64 »

Where did you guys get your kits from ? Did you buy oem or aftermarket ?
It's not what you buy, it's what you build.
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Asphaltmaniac
Posts: 314
Joined: Wed Oct 11, 2017 11:57 am
Location: Sparks Nevada
Motorcycle: 1977 Honda 550K. Sold.
1986 1200 Aspencade. Purchased as a non current brand new in the box 1988. Sold.
Black 2006 1800 Goldwing.
2017 BMW 1200 GS Adventure...

Re: Clutch Master Cylinder Bad?

Post by Asphaltmaniac »

keithg64 wrote: Wed Aug 25, 2021 5:51 am Where did you guys get your kits from ? Did you buy oem or aftermarket ?

Used OEM for all my rebuild pieces.


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