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Old 08-19-2013, 09:46 PM   #1
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Old 08-19-2013, 09:50 PM   #2
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Glad you pulled out of it. How is your steering dampener?
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Old 08-19-2013, 10:05 PM   #3
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I had a barstool wobble
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Old 08-19-2013, 10:19 PM   #4
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Old 08-19-2013, 10:22 PM   #5
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I was just out tonight and got the handle bar wobble on my ninja 650 going 100+.

I always get it especially when I lift the front tire off the ground a bit under heavy acceleration and when it contacts the road. But I've gotten used to it and just hold on like a boss. Give you a bad feeling.

I notice it more when the front tire pressure drops a few psi and then I know its time to put more air in it.

My steering damper is built into my arms
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Old 08-19-2013, 11:19 PM   #6
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Old 08-19-2013, 11:27 PM   #7
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It happens. I just relax my arms, and get my weight on the pegs. I would check your dampener, and head bearings Fastola.
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Old 08-19-2013, 11:37 PM   #8
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Old 08-19-2013, 11:48 PM   #9
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Old 08-20-2013, 12:54 AM   #10
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head shake.. relax and stay on the gas
fighting it will just make it worse
usually caused by rider input, getting front wheel out of line when it's unloaded
if it's a regular occurance, something is out of spec in the front end
easy test is roll down the road about 60, take both hands off the bars, and see if you get any wobble; if so inspect and fix

dampers are a crutch, and should be set to as light a setting as possible
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Old 08-20-2013, 04:11 AM   #11
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You need to stay light on the bars. And a good damper is like buying insurance, its not there to prevent it but to stop it when it does happen so keep it turned up.
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Old 08-20-2013, 06:49 AM   #12
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Bruce, has it right above... I got bar wobble on the track on the SV... ended up in the hospital crashing on the straight...
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Old 08-20-2013, 07:06 AM   #13
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The ZX10 had a problem with it. Under hard acceleration, as the front end lightened, I would get a little shake. It got bad a few times.

I was GOING to put a dampener on it, but some scumbag stole it before I got a chance.
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Old 08-20-2013, 07:12 AM   #14
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^pretty much what the last few guys said.

With that, my 650r got a SLIGHT (just back and forth, then done) wobble on a hard shift.... Buell unloads the front more, so it's a bit worse. I'll be getting a damper at some point, just as insurance. I watched my brother go down from a tank slapper.... did NOT look fun.

The Ninja always did it... pretty sure it's my ham fisted inputs while WOT shifting.
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Old 08-20-2013, 10:22 AM   #15
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My motard gets headshake when I accelerate hard, land wheelies, go over 70 mph, gets suicidal over 90 mph, exit corners on the gas, and ride on uneven roads at speed. It is suprisingly stable when sitting at a stop light though.
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Old 08-20-2013, 10:34 AM   #16
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My old Honda 919 wobbled pulling out of corners on moderate+ pace rides and when near 150 in straights. Just have to know your bike and how to deal with it, or get a better dampener.
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Old 08-20-2013, 10:42 AM   #17
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My motard gets headshake when I accelerate hard, land wheelies, go over 70 mph, gets suicidal over 90 mph, exit corners on the gas, and ride on uneven roads at speed. It is suprisingly stable when sitting at a stop light though.
You forgot to mention how stable it is while your rebuilding the engine...
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Old 08-20-2013, 11:22 AM   #18
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Quote:
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You forgot to mention how stable it is while your rebuilding the engine...
No kidding. You can bump into it while its on the stand and it won't fall.
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Old 08-20-2013, 02:29 PM   #19
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Some bikes are just a little slap happy, even if everything is 100% correct on the bike. Some ZX10s, R1s and other aggressive sport bikes will sometimes shake their heads under hard acceleration. Even my brand new S1000RR tends to shake a little under hard acceleration in 3rd when the front wheel is barely skimming the ground, and that is WITH a steering dampener. Not bad but you can definitely feel it....not sure if it will go into a full blown slapper or not. Ill probably go to an Ohlins dampener.

I run a GPR top mount dampener on my Busa and its stable as can be... But it has never been very twitchy to start with.

Aggressive steering geometry and suspension settings are causes of slappers.
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Old 08-20-2013, 05:24 PM   #20
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