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Griso front end noise

S

scbikerdude

Just got it firing!
Joined
Aug 15, 2010
Messages
7
I have a 2007 Griso, bought it about 4 months ago. Rides fine, no probs. However, I have a friend that is convinced there is something wrong with the front end. He holds the brake, and rocks the bike forward, and you can hear a clunk sound. He thinks that either the fork oil is low, or the steering head bearing is loose. I wanted to check and see if that is something they all do, as this is the first bike I've owned with an upside down for, plus its Italian, and who knows. I don't really want to jack with something when I can't feel anything wrong.
G
 
If I hear a clunk like that I suspect the brakes are sticking, so I take the pads out and clean/grease the pistons.

Worth checking.
 
It is Italian, but loose steering head bearings are a universal issue. Yes they could be loose but it is easy to check. Secure the rear of the bike (straps or work stand) and jack the front up so it is just off the ground. Then from the front of the bike grab the bottoms of the forks and pull and push on them to check for play. There should be none.
I would imagine there could be something else making that noise, but from what you describe I would check the steering head bearings first.
 
Don't understand how it could be the brake pads/pistons sticking, as the brakes are applied in this test and work fine during riding.

Yes, that is how I always checked steering head bearings, in addition to letting them swing side to side looking for indentations. I did notice now when I actually tried what he did, that the floating rotors move and makes a sound. If that's he sound he hears, I don't have a problem (or I guess my problem is my buddy, eh?)
g
 
Ah, sorry... I misread. I thought it was after the brake had been released then moved forwards.

Does sound like a loose head or a bearing problem then.
 
GuzziHero said:
If I hear a clunk like that I suspect the brakes are sticking, so I take the pads out and clean/grease the pistons.

Worth checking.
Click to expand...
i get this sometimes when riding in the wet .
 
I know a lot of bikers (mostly sunday bikers admittedly which I know most Guzzisti aren't) who don't know that you should periodically de-pad and clean/re-lube your brake pistons. Worse still is people using the wrong grease. I use red rubber grease.

My winter bike, a stepthru, gets the job done 2 monthly or montly in bad weather. The Guzzis, maybe twice a year. Its a lot cheaper and easier than warping discs which I did on the Yamaha FZR... and it cost me over half a grand for a pair of aftermarket replacements!
 
What you may be hearing is the play in the front disc mount, as these brakes use 'floating' discs. There is a small amount of play between the little 'bobbins' that mount the disc to the rotor, to allow for discs to expand under hard use. I've heard of people bringing to the shop in the past and thinking there is problem here, when it's really just a high specification braking system.
 
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