Buzzing and shaking after getting off the GPz.

Steve Northrop blackgpz at
Thu Jun 28 19:07:25 PDT 2007

A good valve adjustment, carb sync and balancer adjustment will make it as 
smooth as it's going to get. On stock GPZ's, popping the pilot screw caps 
and turning them out another turn wouldn't hurt matters either. I think the 
GPZ is the smoothest bike I've ever ridden. A quick blast on someone else's 
bike reminds me how good the GPZ really is.

Steve in Western NY
'96 GPZ1100
'02 Daytona 955i
"You Can't Fix Stupid", Ron White

----- Original Message ----- 
From: "York Powell" <yorkus at>
To: <gpzlist at>
Sent: Thursday, June 28, 2007 9:46 PM
Subject: Re: Buzzing and shaking after getting off the GPz.

> I've got the dreaded "Buzz" as well. I have tried adjusting the  valves 
> and replaced the plugs and one bad spark plug boot and it  hasn't got any 
> better. I am hoping to get the carbs sync'd soon and  maybe that will 
> help. I got the bike in August 2005 with only 9300  miles and now have 
> around 17,000 miles. I wish someone could come up  with the answer to this 
> it really sucks and makes riding much less  enjoyable.
> York
> 1995 GPZ
> On Jun 28, 2007, at 11:25 AM, David Beard wrote:
>> Mine is pretty buzzy, too. Gives my hand the tingles. This is the  third 
>> GPZ I've had and the first one that had any buzz to it. I'd  like to 
>> figure it out as well. I hate numb fingers.
>> Dave B
>> Paul Landry wrote:
>>> Question for the group..
>>>  I have been riding my GPz since 2000.  It has over 55,000 Km on  the 
>>> clock.   Two seasons ago I was irritated by what I perceive to  be an 
>>> increase in the
>>> buzz / vibration of the bike.  Feel it in the tank, handle bars  and 
>>> foot
>>> pegs.
>>> I don't know if I am getting more sensitive or if it is getting  worse. 
>>> It
>>> is a high frequency buzz that is more noticeable as the revs climb  but 
>>> is
>>> still a problem cruising around with the revs in the 3000 - 4500  range.
>>>  This is not something I have ever remembered from the past.  My  last 
>>> ride
>>> which was short left my hands and feet tingling after I got of the 
>>> bike.
>>> What's up with that!??  Never used to be an issue and I ride for  hours 
>>> at a
>>> time.  I have the stock counter weights on the stock handlebars  (on 
>>> GenMars)
>>> with new foam rubber grips.  Same stock foot pegs with rubber top 
>>> surface.
>>> No engine mods except for the 4 degree ignition advance.
>>>  Last season I took the bike to the dealer for a tune up.  Had the 
>>> carbs
>>> synch'd, valves checked, etc..  Even had them check the torque on  all 
>>> the
>>> engine mounts (no problem).
>>> The mechanic was all a giggle about working on such a well  maintained 
>>> and
>>> clean bike.  He said it was in terrific shape and had NO problems  but 
>>> would
>>> need a new head gasket next time the valve cover came off.
>>>  The bike looks and runs GREAT!.  No other problems or concerns  but I 
>>> can not
>>> put up with this numbing of my extremities, especially when it  occurs 
>>> on
>>> such short rides.
>>>  Has anyone encountered anything similar?  Any suggestions as to  what 
>>> might
>>> be the culprit, what to look at, etc.. Does this rig have some  rubber 
>>> isolation mounts on the motor that may have
>>> hardened over time??
>>>  I am really hoping this is mechanical, that I can fix..  If it is
>>> me.........  Thanks for any and all thoughts on this.
>>>  Paul W. Landry
>>> p_landry at
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>>> 9:08 PM

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