[NeoFazer]

I'm a bit concerned about the sound of my engine from cold. I have always had a high pitch tone that rises in tone according to the revs.
The same sound that the old XJ-series engine always had. (weow-weow)

It dissapears shortly after the engine has become warmer.

But last I had a visit from another FZ6 owner. When he was about to drive home late night I heard that his doesn't AT ALL make that sound from cold.

Now the Q is.....does anyone have the same observations like me?

Regards / NeoFazer

 

[dirpnirptik]

Mine does that when I'm starting it from a DEAD cold.....and noticed that it smells like it's running rich as well, but if I have already ridden earlier in the day, the effect isn't so bad. I'm guessing it's just a by-product of the injection system acting as a choke for the first bits of the day.

Your friend probably just rode around earlier, is my best educated guess, but if it really bothers you, get it checked out.

 

[Hams51]

Bitchin'!!!

 

[charlieoneseven]

I notice the EFI pumping at idol. Kind of a high pitched buzz. I hear it ar low R's and comming to a stop. Where do you hear yours again?

 

[NeoFazer]

I only hear it on dead cold engine start.

The first 5 minutes (approx.)....strongest around idle revs.
Im suspecting it to be due to missing sync of carburettors.
Another phenomenon I heard comparing to the other FZ was
that mine took longer time to loose revs when closing throttle...(negative gas response ?)

Regards / NeoFazer

 

[virtualt]

I only hear it on dead cold engine start.

The first 5 minutes (approx.)....strongest around idle revs.
Im suspecting it to be due to missing sync of carburettors.
Another phenomenon I heard comparing to the other FZ was
that mine took longer time to loose revs when closing throttle...(negative gas response ?)

Regards / NeoFazer

Just an off the wall question here, what is the ambient temperature outside when you first crank the bike?

Skippy

 

[NeoFazer]

Here in Denmark usually around 16-18 degrees celsius.
Regards / NeoFazer

 

[DLM]

Perhaps you are using too thick of an oil and it is not flowing properly until it gets heated up. Just a thought.

 

[virtualt]

I only hear it on dead cold engine start.

The first 5 minutes (approx.)....strongest around idle revs.
Im suspecting it to be due to missing sync of carburettors.
Another phenomenon I heard comparing to the other FZ was
that mine took longer time to loose revs when closing throttle...(negative gas response ?)

Regards / NeoFazer

And when you took it to the dealer they said???............

Skippy