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Discussion Starter #1
Hello everybody!!

I own the Z650 since last week. I have noticed that over 80km/h it vibrates a lot. I feel very noticeable vibrations under the seat. My girlfriend told the same when she was seated behind me. It's that Normal in a new motorcycle?

My previous one was a scooter ( Suzuki burgman k8 125cc) and it did not vibrate that much. Do you guys have experience that? May be useful to modify the seat with gel??

Thanks in advance!!
Cheers!!
 

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Yes sir, welcome to the forum. Our bike is a high performance parallel twin cylinder motorcycle, which has a tendency to vibrate a bit. It is very different from a scooter, remember your Suzuki had a completely enclosed automatic belt drive system versus a chain drive on the Z. After you get a few more miles on it, it will smooth out considerably, mine took about 1500 miles. The vibration will always be there, but will be more subdued and you will get used to it. Imagine how a Harley vibrates!
 

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Discussion Starter #3
Yes sir, welcome to the forum. Our bike is a high performance parallel twin cylinder motorcycle, which has a tendency to vibrate a bit. It is very different from a scooter, remember your Suzuki had a completely enclosed automatic belt drive system versus a chain drive on the Z. After you get a few more miles on it, it will smooth out considerably, mine took about 1500 miles. The vibration will always be there, but will be more subdued and you will get used to it. Imagine how a Harley vibrates!
Thanks a lot Jacoh!!
did you think about to replace the seat for another one more confortable?
 

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It vibrate all over, handle bar, tank and seat. If a lady ride this bike and her crotch is against the tank she might arrive earlier than to her destination.

I am looking for ways to minimize vibration.
 

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Today I put on a sponge grip and handlebar end side mirrors. I suspect the the long stalk of the original mirrors contribute to high frequency vibration. But i have to remove the bar end weight to install the mirrors.

I have test it riding a few miles on the highway, It think the vibration has changed it frequency and my hand felt better.

Btw about an hour ago, I saw a guy riding a z650. Went up to him and manage to test his bike for vibration. I found out his bike vibration at the handlebar is nicer/better than mine. His bike is still standard.
 

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Maybe some rubber style washers in where things mount might do some good for us since that will absorb some of the vibration right where its happening. Even if that's just one of many things we do, it will help. Not always will we find a one-stop solution.
 

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CRG end bar mirror

What mirrors are those and how do you like them?
It a copy of CRG end bar mirror. I got it from a local motorcycle accessory shop and asked them to install it for me.

I like it, reason being;

1. Enable me to remove the standard mirror which on my ride contribute to high speed hand numbing vibration. Now I only felt the annoying vibration between 5000- 5999 rpm. Will try to remove handle bar vibration further.

2. Now I can see behind me because the mirror further out my shoulder is not blocking the view.

Below is a detail pic of the mirror I got from the internet. Btw you can flip it inward or outward.
 

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It a copy of CRG end bar mirror. I got it from a local motorcycle accessory shop and asked them to install it for me.

I like it, reason being;

1. Enable me to remove the standard mirror which on my ride contribute to high speed hand numbing vibration. Now I only felt the annoying vibration between 5000- 5999 rpm. Will try to remove handle bar vibration further.

2. Now I can see behind me because the mirror further out my shoulder is not blocking the view.

Below is a detail pic of the mirror I got from the internet. Btw you can flip it inward or outward.
Cheers! They look fantastic and I definitely want to get a pair for my bike. Did the shop have to remove the internal bar end weight from your handlebar to fit them on and did they have to add any extra modifications to make them fit?
 

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Hi there,
I just bought the bike and had been riding it for 1 month plus. The vibration that you mention is very troubling for me too, it vibrate through the handle bar and my fingers become total numb. I had to stop every 45 mins just to relax my palm and my finger.

Despite that, i think the bike is quite ok and smooth.
 

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Vibration on this bike has been talked about incessantly. Almost every road test I've ever read or seen (dozens of them) have mentioned the vibration. Some reviews say its there but no big deal and others have said they couldn't feel their fingers after a long ride. It does seem like the bike smooths out a bit after it breaks in but some vibration remains. No doubt Kawasaki knows about it by now and hopefully is looking into it for future generations.

As I have mentioned in another post; I recently test rode the Z650 and it's sibling the Ninja 650. Vibrations noticeable but not debilitating to me on the Z. However, on the Ninja they were completely gone. None. The Ninja has bodywork, weighs fifteen pounds more, has different bars and had the factory Performance Option Akropovic pipe. Not sure if any of those things (or perhaps a combination of some of them together) are the reason why, but the bike was noticeably smoother and a bit faster.
 

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I only have about 100 miles on my Z650 so far and the other day was the first time I felt the seat vibration. It was weird because it was like it came out of nowhere. I was riding and suddenly noticed my butt was vibrating really bad. I've never noticed this before.

I don't seem to get a lot of vibration in the handlebars but I do notice my mirrors vibrating.


To Shamsul Kamal: do those new mirrors vibrate much when you ride?
 

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Anybody find a solution for the seat vibration? I'm having this issue and it drives me crazy. Should this be taken to the dealer?
 
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