Squirting sound.......Please HEEEEEEELP!!!!

faantjie

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The problem is on my 27000mile 02 1150GSA single spark with Y-piece and Remus can.

A couple months back I started to hear a sound mainly on the left hand side.It sounds like a cricket chirping on constant, the closest I've come to simulating the sound is by tapping my keys against the yolk, it's slightly higher pitched than that and pulsates, ie not a teeeeeeeet but teteteteteetetet if that makes sense. NOT TAPTAPTAPTAP:nono

It's more noticable when I'm low over in a corner due to the sound bouncing back of the road. It's really noticable if the bike drives away from you. (had Dirk ride it) Also very noticable in 3rd gear at 2300to 2600rpm. If I move up in the rev range I think the engine/exhaust noise hides it a bit. I've not yet noticed a pattern to it, it does it when cold and hot and does not wind up with engine revs, it stays on a constant note. I want to say it sounds like a dry bearing but then again it does not wind or screetch.
I thought it was the altenator belt "flapping" but I checked and it's not that. The other thing I checked was the end can, it sounds like it might be something flapping in the way of the air flow making this "lisping" sound. It's almost like Daffy Duck's lisp when he says "S" but on constant.
I've not noticed a loss in power even though the sound is now getting louder. It's only noticable when the engine is under load, not when it's revved in neutral.

It wasn't there before so it must be something. :blast

I've done the valves, checked the crash bars, altenator belt, wheel bearings, removed and checked the y-pice and end can and I don't think it's the cam chain tensioner as it's not a knocking or tapping sound. I like the fact that the motor rattles and taps but this is different.:nono

I suspect the end can but could not find anything obvious. Is there any way of telling when the can is gone?:nenau
This noise is slowing driving me into orange county and it worries me as I really like my GS.:o

I know I'm open to abuse by the old tossers:rob on here for trying to describe this sound, but at this point it's worth it if out of four pages of comments I get one reply that pin points the problem or that can relate to a similar sound and a fix.:D

Cheers
:hide
 
Helmet strap flapping against the side of your lid :D
 
is that the noise or the bike?
Racetruck
( feeling very sarcastic, today nearly Friday TGI etc )
 
Squeeking

Silly thought but is your oil filler cap on tight with a good O ring? if any oil is comming out this could be the engine breathing through the cap. Unlikely I know but always worth a look what about the engine breather?.
dave gs.
 
As not been covered yet, and you say only noticeable under heavy load (on big suck!):

Something in the induction side of things?
When was the last time you drained your airbox?
or replaced the filter? (could be broken and flapping?)
what condition are the bearings on the butterfly valves?
leak in the inlets?

or a noisy injector?

Good luck..............whatever it is.
 
Thanks for all the suggestions so far. Quite a few things mentioned so far that I've not yet checked. Keep the ideas rolling in as Saturday is D-Day for "Wedwo's" noise. I'll keep you posted on the findings.
Thanks again......:beerjug:
 
Changed the brake pads recently????

Does it speed up as you do?

Sounds like it could be your front pads to me, mine does exactly the same thing!!!

If it is this then it's because there is no spring on the pads and the pads are shaking around on the retaining pin.

Either live with it or change for OE pads or speak to Sir Step of Toe.
 
Fed up with this thread.

It's the centre round gasket on the rocker cover, the one that seals around the spark plug tunnel.
 
Fed up with this thread.

It's the centre round gasket on the rocker cover, the one that seals around the spark plug tunnel.

Well why didn't you just say that before and save us the trouble of looking stupid :nenau
 
Well why didn't you just say that before and save us the trouble of looking stupid :nenau

He's not looking at it until saturday, and i like to see how complicated people can get in their suggestions. :D :D :D

It might not be the inner gasket anyway - the description is "teeeeeeeet but teteteteteetetet if that makes sense. NOT TAPTAPTAPTAP".

My recollection is more of a chufftachufftachufftachuffta. But i'm tone deaf,so it may not sound like that to someone with a more musical ear.
 
I know I'm open to abuse by the old tossers:rob on here for trying to describe this sound, but at this point it's worth it if out of four pages of comments I get one reply that pin points the problem or that can relate to a similar sound and a fix.:D

Cheers
:hide


Reading the above I think he'll be happy even if Steptoe has been a little mischeivous with his replies:nenau
 
To cut to the chase, I did'nt find the noise.


I checked the following:

Spark plugs, tight
Centre round head gasket, replaced
Oil + filter change
Drained air box
Replaced rubber caps situated under injector "hose"
Checked all bolt I could access
Belt checked again, was replaced on 24000ml so still new.

Found a black mark on front of bash plate where the headers join acceoss the front, it was blowing a bit through a hole in the clamp. I rotated the clamp and checked for blowing after but found non.

Found a tiny amount of blowing on the end can join, I've already refitted this and cannot get it to stop. Might be this one.......:nenau
All hoses are tight.
Air Filter is K&N and was cleaned and checked.
Brakes were doone at 24k and still ok.

I just don't know, this noise is driving me nuts and I'm so aware of it that I completely loose concentration when riding. :eek:

Stptoe, you have a pm......:) :blast
 


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