Ignition on crackling noise?

[windscreenman]

You could remove the servo or unplug it if not required mines done 31kand when I opened the servo the grease was like black thick sticky as the cogs unmesh that's where my crackling noise was coming from I still got exup so I need mine but it's nothing to worry about honest :'(
Lift tank and feel servo you can feel it working if your hearing isn't clever put a screwdriver on servo and put the handle to your ear that will amplify your crackling  :lol

[Motopsycho87]

It didn't crackle when I balanced the carbs so I left it. I know it still does it, but when cold apparently... Servo is there, that can bugger off shortly

[Fazerjon]

I disconnected my servo earlier as I also have the crackling noise, and it sure enough it stopped. Definitely not a healthy sound, I don't like it. Anyway if everyone reckons its normal then I'll leave it. One question, is the servo supposed to do a cycle every time the ignition is switched on? I've greased up the valve, checked the cables and that end is all good. I've oiled the cables at the servo end, but when I switch the ignition on nothing moves, just crackles??

[Motopsycho87]

I take there is no harm in removing the servo? Just eating my precious electricity otherwise...

And I've never come across anything electrical where that noise is a good thing!

[unfazed]

I disconnected my servo earlier as I also have the crackling noise, and it sure enough it stopped. Definitely not a healthy sound, I don't like it. Anyway if everyone reckons its normal then I'll leave it. One question, is the servo supposed to do a cycle every time the ignition is switched on? I've greased up the valve, checked the cables and that end is all good. I've oiled the cables at the servo end, but when I switch the ignition on nothing moves, just crackles??

Turn off the engine with the kill switch, now turn off the ignition.
Turn on the ignition is the noise gone?
If so it is the exup servo

Try the above if it goes away then it is the servo going into its default position which it does when you stop the engine with the kill switch.
When you stop the engine with the ignition key the power is cut and the Exup cannot return to its default position until you switch the ignition back on.

[Falcon 269]

I take there is no harm in removing the servo? Just eating my precious electricity otherwise...

And I've never come across anything electrical where that noise is a good thing!

I assume you don't need the servo because you've got no EXUP valve for it to operate?  If so, you can remove the servo but you'll get the 7k rpm tacho error code continuously as a result.

[nickodemon]

Did you try what I said weeks ago. Turn ignition on and listen for crackling sound. Leave ignition on and spray electrical lube or wd 40 if you don't have electrical spray and see if the noise changes. If it does its ignition.

[windscreenman]

It's the grease inside it open it up if you don't believe me
It's very sticky grease that crackles as the cogs unmesh even if you spray coppers lip in there it still makes a noise that's what I did and it made no difference at all nothing to be concerned about its NORMAL :rollin
This is plastic parts unmeshing  and not an electrical problem you are all reading too much into it take the 4 screws out and open it have a look then chill out !!! :grumble
I didn't hear it at all until I removed the ais off mine I guess everyone is just more sensative to it cos now you can hear it it must be fooked well it's not  top
My exup works very well and yes it crackles from the servo  it ain't broke and it dont need fixing you will waste your money trying to silence it  :groan

[Fazerjon]

[quote author=Fazerjon link=topic=19357.msg224648#msg224648 date=1455874942]
I disconnected my servo earlier as I also have the crackling noise, and it sure enough it stopped. Definitely not a healthy sound, I don't like it. Anyway if everyone reckons its normal then I'll leave it. One question, is the servo supposed to do a cycle every time the ignition is switched on? I've greased up the valve, checked the cables and that end is all good. I've oiled the cables at the servo end, but when I switch the ignition on nothing moves, just crackles??

Turn off the engine with the kill switch, now turn off the ignition.
Turn on the ignition is the noise gone?
If so it is the exup servo

Yep, tried that and it's definitely the servo motor. I was mainly worried because I hadn't noticed it before, but it seemed to happen after I'd done the AIS removal mod so was worried I'd done something wrong! All good now, I'm happy 

[windscreenman]

I was exactly the same only noticed the noise after ais removal being paranoid I heard the crackling and thought what the feck is that it didn't do that before  anyway not to worry if you want to check the operation of the servo lift the tank them torn the servo pulley by hand to open the valve then swith ignition on the servo should return to original point if it does servo and valve work my bike goes like a rocket now I've done the ivans too all set for sunny days now
Ride safe

[Fazerjon]

Excellent, I've booked in with Mike for the Full Monty in April so I can't wait now, roll on the Spring/Summer!