Author Topic: Shaky handle bars, after adding slip on?  (Read 2067 times)

Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #20 on: April 07, 2021, 08:20:25 PM »
Thanks for the input im going to try to get on center stand to check it out. If there is a trick to getting it on the center stand id like to know. The local cycle gear said they balance tires for free so i might just try that. Adjusting dampening did’t seem to help. The bike is a 2011 with 42,000 miles. I put 1,000 miles on it. The tires look like their in good condition (cant seem to post picture). The front is a shinko. Im about 220lbs. Also have the pull back rizers on handel bars.

I notice now it dose it between 30-50mph clears right up at 50, using cramp buster (wrist throttle) also seems to do it under light throttle (with pressure off of handelbars)



Offline Boomer

  • Full Member
  • ***
  • Posts: 874
  • Country: gb
  • Wickford, UK
    • Boomers GTR Site
Re: Shaky handle bars, after adding slip on?
« Reply #21 on: April 08, 2021, 01:20:07 AM »
If it's even remotely difficult to get it onto the centerstand, then it has been lowered.
If it's been lowered, then the shaking is most likely to be that the geometry is wrong eg. lowered different amounts front vs rear or one fork lower than the other.
George "Boomer" Garratt
Wickford, UK


Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #22 on: April 08, 2021, 03:09:35 PM »
If it's even remotely difficult to get it onto the centerstand, then it has been lowered.
If it's been lowered, then the shaking is most likely to be that the geometry is wrong eg. lowered different amounts front vs rear or one fork lower than the other.

Is there a way to tell if its been lowered? This bike was prety much stock exept for the windshild when i got it so kinda dont think last owner would have lowered but not ruling it out.

I think im just not doing it right also afraid of dropping it. My honda cm400 i could never get on center stand took me and my dad both to do it. My father in law cant get his kawasaki voyager 1200 on his center stand by himself , said his friend can do it though. Just saying im probably not doing it right.

Offline Stasch

  • Full Member
  • ***
  • Posts: 413
  • Country: us
Re: Shaky handle bars, after adding slip on?
« Reply #23 on: April 08, 2021, 04:00:20 PM »
Theres a trick to the kawasaki voyager 1200 - its a 2 stage left mechanism. 

If trying to put that bike on CS with the 2nd stage lever, its gonna be a bear.

Using stage 1, then 2 makes it a breeze.
Stan Visser - - - - - - - - - - - - - - - - - -- - - - - - > C10 STUFF FOR SALE - Parts List

He IS a racer, hence the forward lean!!  by: Mettler1

Offline PeteTN_zgtr

  • Jr. Member
  • **
  • Posts: 63
Re: Shaky handle bars, after adding slip on?
« Reply #24 on: April 08, 2021, 07:47:50 PM »
If thats the case wouldn’t it do it at highway speeds also and not just on deceleration?  Or is the pressure on handelbars enough to stabilize it?

I'll go out on a limb and disagree with the other responses. I bet its the tire balance. To answer your 1st question above, no. My experience is a poorly balanced front tire will shake the bars at about 40mph but not at higher speeds. I've had this symptom on my C14 and previous CBR. On both bikes it stopped when I decided to mount & balance my own tires.  42000 miles seems low to have steering bearing issues but could be possible; these things vary from bike to bike. Mine's at 48000 and the ride is very smooth. I could be wrong but the front tire was just messed around with on it. Could be a combination of both these things.

Also,
Roll the back tire up on a board to make it easier to get on the center-stand. Something thinner than a 2x4 though

Check for non-stock shock links on rear shock to see if it's might be lowered.

Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #25 on: April 08, 2021, 10:03:37 PM »
I'll go out on a limb and disagree with the other responses. I bet its the tire balance. To answer your 1st question above, no. My experience is a poorly balanced front tire will shake the bars at about 40mph but not at higher speeds. I've had this symptom on my C14 and previous CBR. On both bikes it stopped when I decided to mount & balance my own tires.  42000 miles seems low to have steering bearing issues but could be possible; these things vary from bike to bike. Mine's at 48000 and the ride is very smooth. I could be wrong but the front tire was just messed around with on it. Could be a combination of both these things.

Also,
Roll the back tire up on a board to make it easier to get on the center-stand. Something thinner than a 2x4 though

Check for non-stock shock links on rear shock to see if it's might be lowered.

Thanks i like the board idea. They said they rebalanced after doing tpms but who knows if they really did it. Ill try that first seems like the easiest thing to check. Shocks look stock to me but ill take a closer look while on center stand.

Offline Boomer

  • Full Member
  • ***
  • Posts: 874
  • Country: gb
  • Wickford, UK
    • Boomers GTR Site
Re: Shaky handle bars, after adding slip on?
« Reply #26 on: April 09, 2021, 01:32:22 AM »
Is there a way to tell if its been lowered? This bike was prety much stock exept for the windshild when i got it so kinda dont think last owner would have lowered but not ruling it out.

I think im just not doing it right also afraid of dropping it. My honda cm400 i could never get on center stand took me and my dad both to do it. My father in law cant get his kawasaki voyager 1200 on his center stand by himself , said his friend can do it though. Just saying im probably not doing it right.
Check the rear suspension linkages. If they are not standard then it's been lowered.

I'm used to putting my C10 GTR1000 on the centrestand so to me the C14 is a breeze.
Hold the handlebar in your left hand, hold the grab rail with your right hand, put right foot on the centrestand and push it to the ground.
Once the centrestand hits the ground put some weight on it so that it puts both centrestand feet down and stabilises the bike.
Then put all your weight on the centrestand and at the same time pull/push the bike rearwards and up she goes.
The first time I did mine I expected it to be like the C10, so I damned near threw the bike backwards out of the garage.  :rotflmao:
George "Boomer" Garratt
Wickford, UK


Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #27 on: April 11, 2021, 04:58:18 PM »
Could rear tire problem cause the front end shake? Still going to get front rebalenced. Noticed what i think is called tire feathering on the rear tire. The leading edge of the tread is taller than the trailing edge (Michelin 2ct) exept in the center. Seems to be the same on left sied as right side.

Offline PeteTN_zgtr

  • Jr. Member
  • **
  • Posts: 63
Re: Shaky handle bars, after adding slip on?
« Reply #28 on: April 13, 2021, 06:36:55 PM »
Probably not likely the rear tire, especially if it does it going straight and not leaning over at all, assuming the middle of the rear tire is smooth. Any feeling of vibration coming through the seat at any speed?

Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #29 on: April 13, 2021, 06:42:47 PM »
Probably not likely the rear tire, especially if it does it going straight and not leaning over at all, assuming the middle of the rear tire is smooth. Any feeling of vibration coming through the seat at any speed?

Feels smooth at all speeds

Offline Tim

  • Full Member
  • ***
  • Posts: 215
  • Country: us
Re: Shaky handle bars, after adding slip on?
« Reply #30 on: April 20, 2021, 06:28:11 PM »
Could be front wheel bearings. Mine would shake at about on deceleration at about 35mph. It was really bad if I let go of the bars. Tried different tires and was still the same. Front wheel bearings were hard to turn with a finger stuck in the center inside race but turned smooth. Replaced and the problem went away. 
I don't always ride a street bike. But when I do, it's a Concours. Ride safely my friend.

Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #31 on: April 20, 2021, 09:29:43 PM »
Could be front wheel bearings. Mine would shake at about on deceleration at about 35mph. It was really bad if I let go of the bars. Tried different tires and was still the same. Front wheel bearings were hard to turn with a finger stuck in the center inside race but turned smooth. Replaced and the problem went away.

Thanks. Going to take front tire off this weekend to check balance. Ill definitely check those out while i have it off.

Offline Tylerkaz

  • Jr. Member
  • **
  • Posts: 34
Re: Shaky handle bars, after adding slip on?
« Reply #32 on: May 01, 2021, 10:36:29 PM »
Took tire off to get balanced was able to tell front tire was cupping, so had it changed and now rides smooth.