Concours Owners Group (COG) Forum

Concours Discussion (C10 / ZG1000 / 1000GTR) => Concours C10 / ZG1000 General Chat and Tech => Topic started by: V8shadow on August 02, 2012, 12:17:46 am

Title: "Chirpy" sound from engine
Post by: V8shadow on August 02, 2012, 12:17:46 am
  Now that I have the worthless OE windshield off and a 19" Rifle in its place, I can actually hear the engine.  There is a  "chirpy" sound coming from the engine that coincides directly with RPM.  It sounds like a whistle sound made up of millions of chirps.  LOL.  It is MADDENING.  I'm thinking it might be an inherent feature Kawasaki engineered to encourage me to wear my helmet, to drown out the noise.  It is not just my bike either, because I have heard youtube videos that sound just like it.  What is this noise and is there anything that I can do to change it??
Title: Re: "Chirpy" sound from engine
Post by: wild man on August 02, 2012, 12:24:28 am
If its primary gear whistle not much can be done, its been there since the early Z1's.

Could you post the you tube link?
Title: Re: "Chirpy" sound from engine
Post by: Mortech on August 02, 2012, 12:31:58 am
I actually kind of like the sound ...I mean is soooo different than what the engine of a Harley makes ....
Title: Re: "Chirpy" sound from engine
Post by: V8shadow on August 02, 2012, 12:44:49 am
I looked at several, but couldn't find a video that would display the sound im talking about.  Kind of sounds like a tame version of a VW beetle.  LOL.  I hate it.
Title: Re: "Chirpy" sound from engine
Post by: Stasch on August 02, 2012, 01:23:51 am
'chirpy' could mean that the balancer shaft needs to be adjusted.
Title: Re: "Chirpy" sound from engine
Post by: Alekkas on August 02, 2012, 01:32:49 am
If there is an adjustment to made, I am sorry to lead you astray with the rest of my post.

The love, the lust, for Kaw inline 4 engines!  My 80 KZ 1000 chirped.  I missed it a long time.  Got it back now.  "Twist the Throttle" allowed me to hear the chirp when the test rider fired up the Z14X.  Awwww love it.  Went to the dealer and we fired up a Ninja 1000, chirp.  My buddies vintage KZ 650 in the 90's ....

Weak in the knees, rush through my face ...

Got carried away there. 

Again, I apologize if your bike actually needs an adjustment.  To me the chirp screams adreneline.... and Kaw inline 4.  Is there something wrong with that?   ;D
Title: Re: "Chirpy" sound from engine
Post by: S Smith on August 02, 2012, 01:33:00 am
'chirpy' could mean that the balancer shaft needs to be adjusted.

 :goodpost:
ding ding ding... we have a wiener.
Title: Re: "Chirpy" sound from engine
Post by: Wirenutt on August 02, 2012, 02:09:40 am
This is me holding my phone over my windshield last weekend on a charity ride, you can hear my primary gears a couple of times in the first 14 or 15 seconds when the wind noise isn't too bad. We are going through Skaneateles, NY in the video. Is this the sound you're talking about?

http://youtu.be/93fbzl096Po (http://youtu.be/93fbzl096Po)
Title: Re: "Chirpy" sound from engine
Post by: Kawadog on August 02, 2012, 02:27:16 am
I owned a  1972 500 trip, 1975 500 trip and a 1973 Z-1a, 1977 kz1000, 2001 zg1000 all have that beautiful tyranny whine. A kdog trademark...LOVE IT! :great:
Title: Re: "Chirpy" sound from engine
Post by: Carlson on August 02, 2012, 02:59:46 pm
'chirpy' could mean that the balancer shaft needs to be adjusted.

 :goodpost:
ding ding ding... we have a wiener.

Another thing to check is water pump and alternator.  Dying bearings can "chirp".
Title: Re: "Chirpy" sound from engine
Post by: Snarf on August 02, 2012, 03:06:12 pm
Ear plugs and a helmet
Title: Re: "Chirpy" sound from engine
Post by: cra-z1000 on August 02, 2012, 03:10:26 pm
Should be reffered tto as a scream rather than chirp . Maybe that would be less confusing ? My KZ had the same scream as does the Connie .
Title: Re: "Chirpy" sound from engine
Post by: smithr1 on August 02, 2012, 04:40:43 pm
This is a crude description of the balancer shaft adjustment.   IT DOES NOTHING TO MAKE THE BIKE BUZZ LESS.
BUT Steve is correct if the shaft has been adjusted in the past it could be set wrong and it will make a whine sound.  But so will ten other things.   If you had to put a different wind shield on to hear it then in my book it it is not a problem.
http://will.mylanders.com/mc/concours/notes/read.pl?file=21 (http://will.mylanders.com/mc/concours/notes/read.pl?file=21)
Title: Re: "Chirpy" sound from engine
Post by: V8shadow on August 02, 2012, 05:10:46 pm
This is me holding my phone over my windshield last weekend on a charity ride, you can hear my primary gears a couple of times in the first 14 or 15 seconds when the wind noise isn't too bad. We are going through Skaneateles, NY in the video. Is this the sound you're talking about?

[url]http://youtu.be/93fbzl096Po[/url] ([url]http://youtu.be/93fbzl096Po[/url])


Yeah, I think that is it.  I can hear it pretty much from 2K to 4K RPM consistently I would say.  If it is a characteristic sound, then I shall just get used to it I suppose unless there is something I can do to lessen it.  I am checking out that link now.
Title: Re: "Chirpy" sound from engine
Post by: Alekkas on August 02, 2012, 05:21:57 pm
OK sorry, the chirping I was talking about is at start up and at idle.   :-[
Title: Re: "Chirpy" sound from engine
Post by: V8shadow on August 02, 2012, 09:18:16 pm
This is a crude description of the balancer shaft adjustment.   IT DOES NOTHING TO MAKE THE BIKE BUZZ LESS.
BUT Steve is correct if the shaft has been adjusted in the past it could be set wrong and it will make a whine sound.  But so will ten other things.   If you had to put a different wind shield on to hear it then in my book it it is not a problem.
[url]http://will.mylanders.com/mc/concours/notes/read.pl?file=21[/url] ([url]http://will.mylanders.com/mc/concours/notes/read.pl?file=21[/url])


LOL.  With the OE windshield, I couldn't hear if my wife shoot a 12 gauge in the air from the passenger seat.
Title: Re: "Chirpy" sound from engine
Post by: Alekkas on August 03, 2012, 06:42:29 pm
Just found this on You tube.

Is this it????

I have never heard it this pronounced ....

Concours C10 whining noise (http://www.youtube.com/watch?v=6qIuowRawds#)
Title: Re: "Chirpy" sound from engine
Post by: V8shadow on August 03, 2012, 06:50:39 pm
Yeah, I would say that is the sound.  Mine doesn't sound like that at idle though.  Now, he was at idle,  but if he were to ride at a steady 2500-3000 RPM, then all those little chirps would come together to form a chirpy whistle, which is what I hear loud and clear.  So is that normal on his bike?  Is it normal on mine?  Or is there something that should be done?  Is there anything that can be done to quiet it down at all?
  You can hear it good in this vid I think.  Knee Down Kawasaki Concours Fun !!! GTR-1000 #2 (http://www.youtube.com/watch?v=9pWHuXKo4oY#)
Title: Re: "Chirpy" sound from engine
Post by: V8shadow on August 10, 2012, 11:58:41 pm
Ok, I followed the instructions to the letter and found that my balance shaft was way off.  I made the noise go away significantly but I can still hear a little bit.  Does this adjustment make the chirpy noise go away completely or does it just quiet it down?  I mean, can I just keep adjusting till the noise is 100% gone, or is this just an inherent thing with having an engine with a balance shaft?
Title: Re: "Chirpy" sound from engine
Post by: Alekkas on August 11, 2012, 12:12:56 am
In my experience with a KZ 1000 and the connie, little or no chirp at idle and none at speed is attainable - so in my experience, you can still go a little more (less?)

A little at idle is good for my senses, but others here with WAY more knowledge can tell you if that is a good thing for your bike.

Most importantly, nice job getting it in the right direction!!!
Title: Re: "Chirpy" sound from engine
Post by: V8shadow on August 11, 2012, 12:26:04 am
From the the tightest setting to the loosest setting I had a quarter turn of adjustment on the screw.  With the screw counter clockwise it made a squeal and a quarter turn more it started making a rattling type of sound.  I just wanna know if somewhere in that quarter turn of the screw can I get it totally quiet.  Right now I let the screw counter clockwise till I heard the high pitch squeal, then turned it clockwise till the squeal was gone, then turned approximately 1/16 of a turn and tightened it all back down per the instructions I have read on here.