sticky yoke or steering?

Forum rules
Please can you post items for sale or wanted in the correct For Sale section. Items / bikes for sale here will be removed without warning. Reasons for this are in the FAQ. Thanks
User avatar
xivlia
Senior Member
Posts: 1206
Joined: Tue Jun 21, 2011 3:27 am
Bike owned: Ducati 749 D
Location: Scotland, Inverness

sticky yoke or steering?

Post by xivlia » Thu Feb 16, 2012 5:20 pm

okay, so i FINALLY got my bike back on the road after dropping it... i have noticed that the steering sticks when turning to the left and right....for example when i try and turn it to left.. there is something resisting it from turning..and then there is a clicking noise and it just turns in a sudden move... i almost crashed because of this... what the f*ck is causing this? any ideas? the bike was standing outside for over a month and taking all sorts of shit from the scottish weather up here in Inverness... mostly heavy rain... maybe something got rusty and now there is friction on something? please help. thanks.

User avatar
thunderace
Site Supporter
Site Supporter
Posts: 1584
Joined: Fri Sep 10, 2010 9:03 pm
Bike owned: R6, YZF600R
Location: Blackburn, Lancs.

Re: sticky yoke or steering?

Post by thunderace » Thu Feb 16, 2012 5:23 pm

First thing I'd be doing is changing the headstock bearings. While it's apart, I'd be checking the stem for run out :peace:
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.

User avatar
xivlia
Senior Member
Posts: 1206
Joined: Tue Jun 21, 2011 3:27 am
Bike owned: Ducati 749 D
Location: Scotland, Inverness

Re: sticky yoke or steering?

Post by xivlia » Thu Feb 16, 2012 5:37 pm

what do you mean the stem for a run out? and the headstock? thats the hole in the top yoke? sorry i dont know much about the bikes yet :P

marcus57
Site Supporter
Site Supporter
Posts: 1142
Joined: Sun Jul 04, 2010 1:21 pm
Bike owned: nc30, nc35, gsxr750
Location: Taunton

Re: sticky yoke or steering?

Post by marcus57 » Thu Feb 16, 2012 5:54 pm

xivlia wrote:what do you mean the stem for a run out? and the headstock? thats the hole in the top yoke? sorry i dont know much about the bikes yet :P
The head stock bearings , about £50 from Rick O, I think he means checking to see if it's straight and true .

User avatar
thunderace
Site Supporter
Site Supporter
Posts: 1584
Joined: Fri Sep 10, 2010 9:03 pm
Bike owned: R6, YZF600R
Location: Blackburn, Lancs.

Re: sticky yoke or steering?

Post by thunderace » Thu Feb 16, 2012 6:02 pm

That is what I meant. Easiest way without expensive tools is to roll the stem along a perfectly flat surface, like a granite chopping board or worktop. The stem should be perfectly straight, even 0.25mm run out can cause notchy steering. I have known stems to be bent following a frontal impact and it also tends to crush the bearing races.
Conventional wisdom says to know your limits. To know your limits you need to find them first. Finding your limits generally involves getting in over your head and hoping you live long enough to benefit from the experience. That's the fun part.

User avatar
xivlia
Senior Member
Posts: 1206
Joined: Tue Jun 21, 2011 3:27 am
Bike owned: Ducati 749 D
Location: Scotland, Inverness

Re: sticky yoke or steering?

Post by xivlia » Thu Feb 16, 2012 6:05 pm

hmm shit, looks like i willl have to replace the stem then, cause i did drop the bike on ice and left front was broken.. maybe the stem twisted upon impact.

User avatar
viper_biker
Moderators
Moderators
Posts: 1798
Joined: Sun Apr 06, 2008 11:25 am
Bike owned: VFR400RR, CBR1000RR6
Location: Belfast, Norn Iron
Contact:

Re: sticky yoke or steering?

Post by viper_biker » Thu Feb 16, 2012 6:32 pm

Are you sure all cable and wires are routed the correct way? Have you had the fork out or clip-ons off?
Ducati 916, not worth a carrott

User avatar
xivlia
Senior Member
Posts: 1206
Joined: Tue Jun 21, 2011 3:27 am
Bike owned: Ducati 749 D
Location: Scotland, Inverness

Re: sticky yoke or steering?

Post by xivlia » Thu Feb 16, 2012 8:25 pm

well the cables are routed the right way. i had the forks out and put them back in BEFORE the dropping bike.... and it was going well.. but after dropping the bike.. its been like this. the left handle bar is bent. but thats not the problem..

Neosophist
Moderators
Moderators
Posts: 8172
Joined: Fri Jul 04, 2008 1:01 pm
Bike owned: CBR954

Re: sticky yoke or steering?

Post by Neosophist » Fri Feb 17, 2012 10:29 am

xivlia wrote:well the cables are routed the right way. i had the forks out and put them back in BEFORE the dropping bike.... and it was going well.. but after dropping the bike.. its been like this. the left handle bar is bent. but thats not the problem..
You said above that the notchy steering is what caused you to crash? But now it's after the crash? Which is it.

Has it always been like this? (How did it pass MOT?) or is it after you've been messing with it.

As mentioned by viper... badly fitted cables and harnesses (even if they are routed properly) will cause tight spots.

If it's not this then check yolk and headstock bearings. (This is the tube that turns when you move the bars, and the bearings it runs in)

You need to remove the yolks (these hold the forks) by removing the forks then the big top nut and adjuster.

Check the bearings are smooth and not notchy and the steering stem isnt' broken.

Sounds more like a cable / harness issue if it's only happening when turning to one side.
xivlia wrote:i dont go fast on this bike so really do not need a rear brake.. /
vic-vtrvfr wrote:Ask xivlia for help, he's tackled just about every problem u could think of...

User avatar
xivlia
Senior Member
Posts: 1206
Joined: Tue Jun 21, 2011 3:27 am
Bike owned: Ducati 749 D
Location: Scotland, Inverness

Re: sticky yoke or steering?

Post by xivlia » Fri Feb 17, 2012 12:15 pm

no it was fine before i crashed the bike.. its been like this ever since i crashed, i only crashed due to ice, the streering was absoloutley fine before the crash. i can check the cables etc again to see if its causing the problem, but its happening when i turn it both ways, not just one way. it mainly happens when i turn to the right though, also when i ride the bike, the bike tends to move to the right by itself but only sometimes.

Post Reply