Little Squeak

If it’s any assurance, mine does exactly the same if you listen hard. So Number one, nothing to worry about.

 

Love this thread, for people who are passionate about their motorbikes I can't even think to tell you exactly what this is, but it's a sound we all know well*, could even be simply linked to air velocity changes. When you rev, you hear an initial sound at the beginning as well as one after you pause after the throttle has been revved. Could be as Sev said, I've had some very minor frequency belt noises that are similar over the years, seemed to be there with a new belt and improved but I never confirmed this.
*i.e.- nothing to worry about.

 

I'll throw in something else to consider, a goosed belt bearing? But that would generally squeak constantly

 

..you know for piece of mind, that's a good call and it wouldn't take long just to check, because it's struck me that although i'm certain that's a noise we've heard/ i've heard on several SS/Monsters with that engine, i can't tell how loud the "squeak" is compared to the general engine noise. This is something you would have to hear by being standing next to the bike, and if it is quite loud then worth pursuing.

 

I'm probably wrong, but it sounds like a carb/induction/ airbox squeak. It's quite charming.

 

I changed my belts, and replaced all the pulleys at my last service 10 months ago for peace of mind whilst I had the belts off. Still makes the noise you’re asking about, as it did before. The old Pulley bearings were faultless once I got them stripped out. I changed them anyway. I’ve always viewed the noise as non mechanical and more of a characteristic sound of the engine. Nothing to worry about.

 

..i'm not asking about any noise? - and with respect, you don't know what belt noise i'm talking about, and equally - i don't know which belt noise you are talking about so "nothing to worry about" not applicable in this case.

 

OK, calm down. I was just referencing to item one of three in the thread opener. Are you normally this touchy?

 

millpond mate, Millpond, And I accept your apology that you picked the wrong post to quote.

 

aren't squeaks to do with belt??

my van squeaks sometimes and i just squirt some silicone over the belts and it goes away

just an idea

 

It’s not that sort of a squeak. As previously mentioned. Air velocity changes is a good way of describing it. Think along the lines of wastegate on a turbo charged engine.

 

quite possible airbox related as you rev the engine then let off the throttle air flow lessens and the mouse that is nesting there lets of a little squeak as a sigh of relief that it has not been sucked into the engine avoiding impending doom
just a thought ....maybe overthinking it a little still.... just a thought

 

I put my money on your bike wants to be a Michael Jackson tribute act. I could be wrong !

 

Possible exhale from the crankcase breather?