Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums - Reply to Topic
Wheels, Suspension and Brakes
Everything to do with wheels, tires,
suspension, forks and brakes

Thread: Brake Fluid Reservoir cap leak. Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
04-26-2018 08:39 PM
dunthyon I wasn't really going to use RTV, but it is upsetting that this cap for some reason won't work, despite it being the exact same shape underneath as the OEM. I don't get it. The leak was fixed by using the original cap but now i have to top off the fluid again. it leaked it all out into god knows where. returning the POS i got from ebay. from what it looked like, the Chrome cap's weephole tunnels were much wider than the OEM, so the gasket didn't seal the entire thing up. Makes a fair amount of sense honestly.

EDIT: Hold on, is the original diaphragm/gasket completely flat where the screws go usually, then is warped to fill the weephole channels? If that's the case, then I'm just an idiot for not using a new gasket.
04-26-2018 06:18 PM
Spockster Was about to say... Silicone won't end well.
04-26-2018 05:57 PM
ubertalldude While that is pretty cool looking, losing brake fluid is WAY more important than lookin' nice. Shame that it didn't really work out for you...
04-26-2018 05:31 PM
dunthyon https://www.ebay.com/itm/Kawasaki-Vu...72.m2749.l2649

Probably gonna try the stock cap tbh.
04-26-2018 04:39 PM
ubertalldude Where the heck do you get such a niche custom product? The cap might not be sealing the diaphragm. I would say put the stock cap back on?
04-26-2018 03:23 PM
Brake Fluid Reservoir cap leak.

Hey, I recently replaced the OEM reservoir cap with a chrome one and it's started leaking really badly. It wasn't leaking with the original but now it's seeping out to the point where I may have to add more fluid now. The Diaphragm looks to be in good condition, and it's tightened as tight as it'll go, so I'm not sure what the issue is. Considering just filling the bastard up with RTV...

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to Google Chrome