Front end problem

Wonder if anyone can help with the following:

I have had a problem with the front end under braking, when I got the bike
it was like having abs, in that the front brake lever would oscillate under
braking, this was remedied by replacing the front disc.

However, I am still finding that the front end doesn't seem to "plant" (for
want of a better term) under braking, it still seems a bit "on and off",
and uneven... just not very sure footed if you know what I mean. I don't
really understand the front end geometry of a bike being a newbie so your
thoughts welcome.

TIA, D

 

Hopefully when replacing the front disk the pads were replaced also.
If they were, or even if they weren't, the pads will need to "wear in" to be
more effective.
Until such time that they are expect reduced braking efficiency.
Otherwise get a new set and replace.


--


--
Robbo
1500GL 1988 Goldwing (Halfway rebuilt)
BMW K100 RS 1984
"Fairly Quick" status. Silver level
BotaFOF #19. E.O.S.M 2001/2002/2003.
B.O.S.M 2003, 2004 .FURSWB#1 KotL..YTC449
PM#7
..

 

Of course there are many things that can be fucked with ... erm ...
adjusted, depending on the bike you ride.
However, some general things are worth to be checked regardless:

- After the brake disc replacement, were the nuts and bolts on the front
end tightened in the right order?
- How long since the fork oil was changed last time?
- Factory fitted fork springs or progressive ones?
- How old are the fork springs?
- Did anyone tinker with the fork adjustments?
- Did you check the headstock bearings for excessive play?

And most importantly: if you haven't done so yet, learn to spanner your
bike yourself. Don't trust any anonymous bike shop mechanic, it's
*your* miserable life that depends on how the work is done, not theirs.

--
Tom :{)
BOTAFOT#105 COFF#02/ OSOS#15 KwaSoH#2
SR500(.de), SRX-4(.jp)
Make it idiot-proof and someone invents a better idiot...

Hiroshima pics: http://makeashorterlink.com/?C12E12B97

 

Tyre pressures, worn head bearings?

Get the front end in the air and waggle it about. Check for any play
fore and aft and any 'rough spots' when moving the wheel from lock to
lock.

 

Hmm, good point, no they were not replaced so that may be a good starting
point, I'll order a new set of pads.

Ta, D

 

It recently had new head bearings and the new disc was tightened correctly
and is still true.

Seems to be no play in the front end at all, so might be worth getting the
fork oil checked.

ta, D

 

Had the same experience. Headstock needed packing with greas.

 

At risk of sounding a prat but it's just a thought but could it be a seized
brake piston pushing the disc to one side before it meets the seized piston
opposite thus causing "on off" braking.

Only a thought, as I say I am a newbie really.

D