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BIKELAND > FORUMS > ZX-14.com > Thread: shaking NEW TOPIC NEW POLL POST REPLY
bruno nadeau


Expert Class
Posts: 174
posted September 17, 2009 08:08 AM        
shaking

HI yesterday i have some roll on race with a frind (2 zx14se 2009)on mine i have yosh r77 full KN air filter and motty afr tuner ,the other one is stock.the problem on mine is at about 8000 rpm and 100 MPH in 3 gear at full throttle the handlebars start shaking baddly from right to left until i back the throttle (not all time but most of the time) the tire is new pilot road 2 .the suspension setting is stock (owner manuel) and i am 175 pounds.what do you think.thank
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bruno nadeau

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busa


Expert Class
Posts: 302
posted September 17, 2009 08:24 AM        
ur front tire must be comimg up just a little. the same thing use to happen to me on roll on second and up . get a damper should solve the problem. you are extended right?
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Hurricane


Expert Class
Posts: 173
posted September 17, 2009 08:48 AM        
I would have front and rear tires checked for flat spots. Maybe from hard braking. Atleast have the dealer re-balance them, it should be under warranty!
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LAB3


Needs a job
Posts: 2977
posted September 17, 2009 09:07 AM        
Pull Hard on the bars and pull your body on the gas tank and see if you load the front end

and the wobble stops. I am sure you checked to see if rear in aligned with the swing arm marks.

Pinch bolts tight etc on front forks. Is this the first time you have done this at that speeed?

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bruno nadeau


Expert Class
Posts: 174
posted September 17, 2009 09:24 AM        
quote:
ur front tire must be comimg up just a little. the same thing use to happen to me on roll on second and up . get a damper should solve the problem. you are extended right?


no i am no extended .thank
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bruno nadeau

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busa


Expert Class
Posts: 302
posted September 17, 2009 09:28 AM        
quote:
quote:
ur front tire must be comimg up just a little. the same thing use to happen to me on roll on second and up . get a damper should solve the problem. you are extended right?


no i am no extended .thank
TIRE HAS TO BE COMING UP THATS NORMAL JUST GOT TO HOLD ON LIKE LAB SAID. I DONT LIKE THAT FEELING .
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bruno nadeau


Expert Class
Posts: 174
posted September 17, 2009 09:41 AM        
quote:
Pull Hard on the bars and pull your body on the gas tank and see if you load the front end

and the wobble stops. I am sure you checked to see if rear in aligned with the swing arm marks.

Pinch bolts tight etc on front forks. Is this the first time you have done this at that speeed?


all is aligned and tight ,no it is not the first time but first time with this tire and this night it happen in the second run first run was OK .my 06 made me the same thing the only time i went to a dragtrack at about the same situation and same tire..............tire maybe?.thank
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bruno nadeau


Expert Class
Posts: 174
posted September 17, 2009 09:45 AM        
quote:
quote:
quote:
ur front tire must be comimg up just a little. the same thing use to happen to me on roll on second and up . get a damper should solve the problem. you are extended right?


no i am no extended .thank
TIRE HAS TO BE COMING UP THATS NORMAL JUST GOT TO HOLD ON LIKE LAB SAID. I DONT LIKE THAT FEELING .


no i dont like that i have to back of.
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LAB3


Needs a job
Posts: 2977
posted September 17, 2009 10:26 AM        
If you have a mag base and a dial indicator you can check the front tire run out. A way to check
for a flat spot with tire still on bike. Also check the rim run out too. Hurricane has a good idea, check front tire and rebalance..I run Michelin Pilot Road 2CT never had this happen to me. I have had the 14
shake the bars in 2nd gear at 8000 RPM. Front end was wanting to lift up :-) pulled foward and nutted up on tank and it smooths out. So I start out leaning Foward when I do this :-)

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bruno nadeau


Expert Class
Posts: 174
posted September 17, 2009 11:10 AM        
thanks all i will try your advice as soon as i can.
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KikonZX14


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Novice
Posts: 1813
posted September 17, 2009 03:37 PM        
quote:
ur front tire must be comimg up just a little. the same thing use to happen to me on roll on second and up . get a damper should solve the problem. you are extended right?


+1 and I'm not extended either but it happens while racing without a damper at full throttle.
Hugs,
David
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Feel the need for SPEED2007 ZX-14 Black with Red Flames (Helibars, Sliders, Yoshimura TRC Ti 4-2 Slip Ons, Fender Eliminator, Zero Gravity SR Windscreen, Custom Heel Guards , Speedohealer V4, Pazzo Levers -soon to come: Flies out / PCV w/A/T kit and later 16T sprocket)1990 Honda Steed (Japan model same as Shadow)1993 Kawasaki Vulcan EN 500 (gone as I trade it in for the ZX-14)Santiago, Chile, South America

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zx14r09se


Novice Class
Posts: 92
posted September 17, 2009 09:38 PM        
Hey guys what to you think about the stock suspension setting... mine was shit... im a 200 lbs and did some adjutment and now its gone ... the sag is not right at all for a 150 plus driver the stock setting is for a avrage 150 lbs smal asian guy we north americain have more sholder and the weigt is not balance right so i did mine and it make a big difference its all about tranfer i think
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SteveWFL


Moderator
Posts: 27917
posted September 18, 2009 01:04 AM        
quote:
Hey guys what to you think about the stock suspension setting... mine was shit... im a 200 lbs and did some adjutment and now its gone ... the sag is not right at all for a 150 plus driver the stock setting is for a avrage 150 lbs smal asian guy we north americain have more sholder and the weigt is not balance right so i did mine and it make a big difference its all about tranfer i think


the stock suspension is too soft no matter what you set it at on the 14
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rich s



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posted September 18, 2009 02:22 AM        
Steve, good point and that is why I just welded mine solid. Rough roads are brutal but she is a stiff as our friend Busa at a gay pride parade.
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busa


Expert Class
Posts: 302
posted September 18, 2009 02:30 AM        
quote:
Steve, good point and that is why I just welded mine solid. Rough roads are brutal but she is a stiff as our friend Busa at a gay pride parade.
lol you jerk what you mean you welded it stiff. what you put that bar that doesnt make the bike wot. if you did how it work out at the track
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Flame On


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Fuel Air & Spark
Posts: 17104
posted September 18, 2009 02:39 AM        
Heard thats what you want to do if you run a drag bar
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busa


Expert Class
Posts: 302
posted September 18, 2009 02:43 AM        
quote:
Heard thats what you want to do if you run a drag bar
they cheap too i was thinking about giving it a try.
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Flame On


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Fuel Air & Spark
Posts: 17104
posted September 18, 2009 02:48 AM        
Yes that's what Im going to do to a drag bike im building pingle sells some adjustable ones
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06 ZX14

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BIGZXDADDY


Expert Class
Posts: 270
posted September 18, 2009 04:00 AM        
you might want to raise to front end and check the steering head bearings for play if you haven't allready
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