ZX10r fuel tank 'whistle'

**rapid van cleef** · 22nd August 2009, 18:15

HI all

on my first decent ridout on my recently acquired zx10r, there seems to be a recurring whistling sound coming from the fuel tank when the engine is off. it lasts around 3-5 seconds, doesnt get louder, is constant. it sounds like air escaping from somewhere in the fuel system?

does anyone know what this is please?

thank you

**YellowDog** · 22nd August 2009, 18:17

It could be your filler cap seal.

Put your ear over it to see if you can identify where it is coming from.

**DIN PELENDA** · 22nd August 2009, 18:18

Originally Posted by rapid van cleef

HI all

on my first decent ridout on my recently acquired zx10r, there seems to be a recurring whistling sound coming from the fuel tank when the engine is off. it lasts around 3-5 seconds, doesnt get louder, is constant. it sounds like air escaping from somewhere in the fuel system?

does anyone know what this is please?

thank you

Is air gong in fuel tank. cos of vacuum that is form from use of fuel, it is normal, for sport bikes fuel tank.

**rapid van cleef** · 22nd August 2009, 19:01

that makes sense

thanks for that

lee

**DMNTD:Me** · 22nd August 2009, 19:06

Originally Posted by DIN PELENDA

Is air gong in fuel tank. cos of vacuum that is form from use of fuel, it is normal, for sport bikes fuel tank.

All ZX10's and ZX14's do it. Breather is too small hence the 'whistle'

**NDORFN** · 22nd August 2009, 19:07

I'm pretty sure it's normal. It is on the new Ninja250 anyway. It's part of the fuel gauge system.

**_STAIN_** · 22nd August 2009, 19:09

Is air going out of the fuel tank due to heat from motor build up / fuel expanding... same as when you park it in the sun.

**DMNTD:Me** · 22nd August 2009, 19:10

Originally Posted by _STAIN_

... same as when you park it in the sun.

...especially when low on gas

**Luckylegs** · 22nd August 2009, 20:18

yup... and zx6r's too

**Grumpy** · 22nd August 2009, 21:14

Originally Posted by Luckylegs

yup... and zx6r's too

And Z1000's. Seems most Kwakas whistle the same tune. Mine gradually did it less as it got older. Very rarely these days.

**Skunk** · 22nd August 2009, 22:18

Every Kwaka I've ever had does it. It's character.

That's why the other brands don't do it - no character...

**hospitalfood** · 22nd August 2009, 22:33

i get the same thing coming from a cyclinder with my BMW sometimes, depends where the cyclinders and valves stop when i switch it off.

**Maha** · 22nd August 2009, 22:44

Mine sounds like a tune from 'Paul McCartney and Wings'.

**Gremlin** · 22nd August 2009, 23:25

If you press on the fuel cap lid, you'll hear it change tune, or stop... easy to tell where its coming from ya see?

**Squiggles** · 23rd August 2009, 00:41

Kawasaki's come with a kitten from factory.

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