CBR 1000F "Hurricane" 1987-1996 CBR 1000F

Brakes

Thread Tools
 
Search this Thread
 
Old Dec 17, 2012 | 04:21 PM
  #1  
Walshy's Avatar
Thread Starter
|
Junior Member
Joined: Oct 2012
Posts: 14
Likes: 0
Default Brakes

after a long slow charity run the next day the bike was hard to push, brakes work fine i get the feeling the bike is pulling to the left felt a little lose (better after a short run. Any thoughts if it is the callipers is it an easy fix?

Walshy
 

Last edited by Sprock; Dec 19, 2012 at 07:08 PM.
Reply
Old Dec 17, 2012 | 05:29 PM
  #2  
MadHattr059's Avatar
Retired Super Moderator - At large E=MC2
Joined: Feb 2011
Posts: 2,299
Likes: 4
From: Tulsa,OK
Default

Your description is rather vague, more detail of the issue would help.
A bit of history helps, as does details of the bike (make-model and year).

That said, based on your comments...
There are a quite a few possibilities.

Bad/leaky fork seals.
Loose/bad steering head bearings.
Tripple trees out of alignment.
Caliper piston sticking, on the side that "pulls".
Rear caliper piston sticking.
Wheel bearings going out.
Or a combination of, all/some, of the above.

You might consider doing an inspection/maintenance of all of these areas.
Most of the areas have pretty detailed how-to's, in the general mechanics forum.
Try a couple of searches there for the specific tasks.

Hope this helps, Ern
 
Reply
Old Dec 18, 2012 | 02:03 AM
  #3  
hawkwind's Avatar
September 2009 ROTM Winner - Faster than a Speeding ..........
Joined: Nov 2008
Posts: 3,808
Likes: 3
From: UK
Default

The first thing I would do is put the bike up on the centre stand and check the front and rear wheels to see if they turn freely.

Also +1 to everything Ern suggested.
 
Reply
Old Dec 18, 2012 | 02:45 AM
  #4  
mjp94cbr100f's Avatar
Member
Joined: May 2012
Posts: 98
Likes: 0
From: N/E Illinois
Default

without overthinking the issue, its probably the LF caliper sticking. its an easy fix if u have any experience wrenching. if the frt wheel drags and the brake pads havent been contaminated, pull the caliper, drain fluid, remove bleeder, push compressed air into the bleeder hole while securing piston as its released from the caliper. remove seals and clean piston, caliper etc, check surfaces for pitting and if ok and no parts needed, and then coat with new brake fluid before reassembly, lube slides with silicone grease, then bleed per FSM . JMO good luck. easy job. u may want to do the RF when ur done
 

Last edited by mjp94cbr100f; Dec 18, 2012 at 02:48 AM.
Reply
Old Dec 18, 2012 | 02:46 AM
  #5  
kiwi TK's Avatar
Crazy CBR Salvage Guy. RIP
Joined: Apr 2010
Posts: 2,446
Likes: 0
From: Central Otago, NZ
Default

The easy check for a sticky caliper is simple.

Go for a quick blat around the block, pull up at home and quickly take your gloves off. This next bit is the part where you really need to "man up", quickly grab both of the front discs with your hands.

If one of them makes you go "Holy ****, that's hot", you have identified the sticky caliper.

Once you've done this test, report back, and we'll start working through what you need to do next.

Cheers
TK
 
Reply
Old Dec 18, 2012 | 07:00 AM
  #6  
tobiahr's Avatar
Senior Member
Joined: Aug 2008
Posts: 240
Likes: 0
From: Austin, TX
Default

Originally Posted by kiwi TK
If one of them makes you go "Holy ****, that's hot", you have identified the sticky caliper.TK
I laughed so hard my sides hurt at that.
Be carefull doing this because depending on how hard you brake ALL of the discs could be very hot.
 
Reply
Old Dec 18, 2012 | 07:36 AM
  #7  
hawkwind's Avatar
September 2009 ROTM Winner - Faster than a Speeding ..........
Joined: Nov 2008
Posts: 3,808
Likes: 3
From: UK
Default

Have some cold water ready
 
Reply
Old Dec 18, 2012 | 12:09 PM
  #8  
TimBucTwo's Avatar
Senior Member
Joined: Jun 2006
Posts: 4,237
Likes: 15
From: Bir Tawil
Default

Also, what year bike is it? LBS ??
 
Reply
Old Dec 19, 2012 | 01:13 PM
  #9  
mjp94cbr100f's Avatar
Member
Joined: May 2012
Posts: 98
Likes: 0
From: N/E Illinois
Default

where did you go Walshy?
 
Reply
Old Dec 19, 2012 | 03:50 PM
  #10  
Bugkiller's Avatar
July 2014 ROTM
Joined: Oct 2010
Posts: 425
Likes: 0
From: Warwickshire, UK
Talking K.I.S.S method

Originally Posted by kiwi TK
The easy check for a sticky caliper is simple.

Go for a quick blat around the block, pull up at home and quickly take your gloves off. This next bit is the part where you really need to "man up", quickly grab both of the front discs with your hands.

If one of them makes you go "Holy ****, that's hot", you have identified the sticky caliper.

TK
Kiwi, is that the K.I.S.S method????

PMSL but it works. Tried gloved hands!!!
 
Reply



All times are GMT -5. The time now is 08:20 AM.