bleeding/flushing a B4 F4 clutch - MVAgusta.net
 1Likes
  • 1 Post By theknurl
 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 10-10-2016, 10:16 PM Thread Starter
Senior Member
 
theknurl's Avatar
 
Join Date: Jul 2009
Location: Palos Verdes Est, SoCal, USA
Posts: 13,806
Send a message via Skype™ to theknurl
Thumbs up bleeding/flushing a B4 F4 clutch

If you're going to bleed it might as well change the fluid too....

only extra tool needed a 2"+ C clamp and a < 30mm washer

remove the slave , put tape on the outside of the slave to protect it from the clamp

put the washer on the piston to protect the center seal from the clamp

mount the clamp and SLOWLY COMPRESS THE PISTON

going fast CAN CAVITATE the fluid going through the banjo fitting causing foam

Now most of the dirty fluid and air are in the M/C......

take a metal object and tap on the clutch line starting at the slave .... you're trying to

dislodge bubbles

remove the M/C cover and seal......now remove all the old fluid and wipe the reservoir

with a lint free cloth.....

refill the reservoir with new DOT 4 fluid

on B4s turn the bars to the right to put the return port at the high spot with F4s you'll

probably have to remove the M/C...

lightly pump the lever 8-10mm, continue until there are no bubbles remount M/C

attach a bleed hose to the slave bleed fitting ....bleed until you get clean fluid

remove the clamp......pump the lever until the slave piston sticks out a few mm

zip tie the lever part way down......rebleed the slave using the clamp, remove the clamp

remount the slave, cut the zip tie, refiill the reservoir, pump slave up, check fluid level

air hides in 3 places M/C, slave and the 3mm bore of the bleed fitting

I just covered it all....

think like a bubble

Edward likes this.

Noel-theknurl

The Forum Curmudgeon
I'm not PC either
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'08 910R
'05 F4
ph. 310-414-7247 PST, GMT -8
PayPal;
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Skype; theknurl
theknurl is online now  
The Following User Says Thank You to theknurl For This Useful Post:
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 10-11-2016, 01:35 AM
New Member
 
Thanksineededthat's Avatar
 
Join Date: May 2016
Location: Northern California, USA
Posts: 59
Thanks Noel....this is great detail. I have been planning to replace the clutch fluid in my Brutale.
Thanksineededthat is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to use all of the features of the MVAgusta.net site, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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 not post new threads
You may not 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

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