Page 2 of 2
Re: Front vibration through leg shields to headset
Posted: Mon Mar 24, 2014 11:37 am
by dapper
Put some wooden blocks under the stand so the front wheel is off the ground. Hold the front wheel and see if there is any play when you lift it up and down. If there is, your steering bearings are loose. Simples.
Re: Front vibration through leg shields to headset
Posted: Mon Mar 24, 2014 1:19 pm
by Toddy
dapper wrote:Put some wooden blocks under the stand so the front wheel is off the ground. Hold the front wheel and see if there is any play when you lift it up and down. If there is, your steering bearings are loose. Simples.
+1 would be first check for me
Re: Front vibration through leg shields to headset
Posted: Mon Mar 24, 2014 7:49 pm
by sydduckett
Defo bearings I reckon, having said this I forgot the bearing race on my last build....
Re: Front vibration through leg shields to headset
Posted: Mon Mar 24, 2014 8:17 pm
by simonwwfc
rosscla wrote:Might be worth taking the dampers off and seeing if it's the same to eliminate them.
Also worth checking the axle nuts ate tight and the fit of the peg in the brake backplate.
Ok sorry guys whats the brake back plate . I'm still learning
Re: Front vibration through leg shields to headset
Posted: Mon Mar 24, 2014 8:19 pm
by simonwwfc
dapper wrote:Put some wooden blocks under the stand so the front wheel is off the ground. Hold the front wheel and see if there is any play when you lift it up and down. If there is, your steering bearings are loose. Simples.
Nothing I've tried this already
Re: Front vibration through leg shields to headset
Posted: Mon Mar 24, 2014 8:57 pm
by Muttley McLadd
First thing I'd check would be for a slack handful of ball bearings or marbles in the petrol tank.
Re: Front vibration through leg shields to headset
Posted: Tue Mar 25, 2014 1:16 am
by rosscla
simonwwfc wrote:rosscla wrote:Might be worth taking the dampers off and seeing if it's the same to eliminate them.
Also worth checking the axle nuts ate tight and the fit of the peg in the brake backplate.
Ok sorry guys whats the brake back plate . I'm still learning
The bit on the off side of the hub that doesn't turn, there will be a peg sticking out of the link that sits in a U shaped moulding on the backplate, if this is worn it can make a knocking noise.
Re: Front vibration through leg shields to headset
Posted: Tue Mar 25, 2014 4:26 pm
by simonwwfc
Rite found issues .
Fork nut been done up to tight and shagged bearings , also knocking sound was deff where fork link fits into brake plate and slight movement when rocking back and forth .
Re: Front vibration through leg shields to headset
Posted: Wed Mar 26, 2014 12:25 am
by rosscla
I did this on a PX recently, wrecked top race by over tightening it, easy done, especially with cheaper bearings.
I'd sort that first and see how it feels then look to replace the backplate if it's still knocking.