disc brake a bit spongy - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Wheels, Suspension and Brakes
Everything to do with wheels, tires,
suspension, forks and brakes

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 08-22-2010, 10:47 PM Thread Starter
Rider on the Storm
 
EasyRector's Avatar
 
Join Date: May 2006
Location: Colorado
Posts: 1,287
iTrader: (1)
 
Garage
disc brake a bit spongy

To come to a full stop, usually all I need to do is press my disc brake lever about 1". Recently, I've needed to pull back 2" or more to accomplish the same stop.

The brake fluid, I think, is fresh and full.

What is the obvious explanation and solution? Thx.

EZC

EasyRector is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 08-23-2010, 08:26 AM
Senior Member
 
baldy's Avatar
 
Join Date: May 2010
Location: St. Albans, Maine
Posts: 796
iTrader: (0)
 
Have you checked the brake pads? If they are very thin you should replace them also you can bleed the system on each brake caliper. This should help but if not it might need a master cylinder rebuild. The spring in there gets weak and needs replacement. Try the quick fixes before anything.

01' VN750
Jardine cross over exaust
Kyriakin grips and foot pegs
Modified seat and backrest
Windshield
Luggage rack
Crash bar with Kyriakin pegs and extensions
Kumho 758 165/80-15 CT rear Dunlop 404 110/90-19 front
Coastered and air/fuel screws at 2.5 turns
Spline lube

93' VN750 getting TLC
Decals and mirrors
Coastered and air/fuel screws at 2.5 turns
ACCTs to MCCTs
Degoated with Harley mufflers
Duro 110-90-19 front 150-90-15 rear
Pick-up coils at .020
Spline lube
baldy is offline  
post #3 of 6 (permalink) Old 08-23-2010, 11:18 PM
Linkmeister Supreme
 
OlHossCanada's Avatar
 
Join Date: Aug 2008
Location: Lethbridge, Alberta, Canada
Posts: 7,960
iTrader: (8)
   
If Baldy`s suggestions all check out ok, the maintenance schedule recommends changing the brake hoses every 4 years, and I see your bike is just there, at a 2006 model.

Hoses maybe starting to stretch??

Someone here installed some aftermarket hoses with a chrome braided cover a short while ago. I don`t know if that makes them any stronger, or if it is just bling.

Anyone know if stronger hydralic brake hoses are available for the vn750?

Gordon

1991 VN 750 -"Cosmic Lady" or "Bad Girl"?
Purchased May 16, 2008
Approx.19,300km (12,000 miles)

H-D windshield
Relocated R/R
MF-AGM battery
Fiamm Freeway Blaster horns
F&S luggage rack and engine guard
Kury Offset Hiway pegs
July 13, 2016, Riding on the DARKSIDE now, Classic Radial 165/80-15


TOP TEN THINGS A NEW RIDER/OWNER SHOULD DO. Click on link.
https://www.vn750.com/forum/11-vn750-general-discussion/9127-top-ten-items-you-would-suggest-new-owner-do-his-new-ride.html
OlHossCanada is offline  
 
post #4 of 6 (permalink) Old 08-24-2010, 09:16 AM
Members who have donated towards server costs
 
Crobins365's Avatar
 
Join Date: Jul 2006
Location: Kennett Square, PA
Posts: 3,505
iTrader: (48)
     
Charlie, did you have any work done on the bike lately? Like have it at that shop for a "check up" or anything? Just wondering if they changed the brake fluid but - per the other two posts - didn't bleed the brakes enough.

C
Crobins365 is offline  
post #5 of 6 (permalink) Old 08-24-2010, 10:20 AM
Senior Member
 
Join Date: Mar 2010
Location: jacksonville, fl
Posts: 335
iTrader: (1)
 
Quote:
Originally Posted by OlHossCanada View Post

Anyone know if stronger hydralic brake hoses are available for the vn750?
If you go to aeroquip or any other industrial line company they you build yours on the spot for half the price. I have not purchased name brand hoses in years. Same goes for bearing, go to and industrial distributer like dana or timken and the will cross reference your bearing you bring and sell you a better quality piece cheaper the over the parts store cheapest one

Harley sportster fenders
custom raked front end
custom exhaust
vn800 tank and guages
modified seat and recovered
rear frame chopped
custom wiring harness
airbox removed
hzhardy is offline  
post #6 of 6 (permalink) Old 08-24-2010, 04:48 PM
Old Fart
 
Knifemaker's Avatar
 
Join Date: Jun 2004
Location: Catawissa, MO
Posts: 11,576
iTrader: (4)
     
Garage
After checking the pads and making sure all the fittings are tight. before you try bleeding the brakes, try the "over nite tie" trick.

Tie the brake lever back toward the grip so it is as tight as you could pull it with all the strength in your hand and let is sit overnight tied back like that.

The next day , untie the lever and see if don't feel better.

KM

If You Are Not Sure If I Am Joking or Not....I AM !!Photos:
http://www.flickr.com/photos/knifemaker1954/sets/
Knifemaker is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

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

Password:


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

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

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