just bought my 07 raptor and havent riden it 30 seconds total yet and noticed when I start it up cold and its sitting there idling it makes kind of a chattering noise from the left side of the motor for a few minutes but just till its warmed up. [img]i/expressions/face-icon-small-sad.gif[/img] anyone else hear this same noise in theirs ?? kinda gives me the creeps. its not super loud or anything but its loud enough to bother me. any one with a 700 have any ideas?

 

They all do it, you'll get used to it, lol

 

ok, well what is it?

 

Like Lotus said they all do it, it's the water pump and it's perfectly normal so no worries.

How long till you mod the snot out of it[img]i/expressions/face-icon-small-wink.gif[/img]

 

allready got a white brothers efi controller for it and my pro design intake kit will be here thursday. my monster pipe will go on it this weekend and will spend the day dyno tuning it. oh and my skat traks and mohawks will be here tomorrow,[img]i/expressions/face-icon-small-smile.gif[/img]

 

and how in the heck does the water pump make all that noise and then why does it stop?

 

so no one can say exactly how or why the water pump rattles like hell when cold? makes no sense to me that a water pump would make noise.

 

It did it on my 05 660R and it does it on my 06 700R although mine does not stop, it does get slightly less audible. As I understand it, it is the drive gear for the impeller that makes the noise and is just the nature of the beast.
I have heard of a couple of isolated cases wher the water pump was defective from the factory so if you feel there might be a problem take it back to the dealer and have them check it out before any damage can be done. Does it show any signs of overheating?

Heres a link to the exploded parts view.
For some reason I can't use the hyperlink protocol or emotioncons?

http://www.yamaha-motor.com/sport/parts/home.aspx

 

thanks Randy, no it runs nice and cool and like I said the noise goes away totally once warm. I was wondering if it could be that the thermostat isnt open when its cold so the water pump is pushing against a closed door which puts some resistance against the pump which makes it chatter. once the thermostat opens the water flows freely and no more strain on the pump? anyway, as long as Im not the only one. Im not used to these little singles and thier little quirks yet. if you look at my pics page you will see what I mean. thanks again

 

You might have some thing there with you theory.


I have looked at pics of your Bombusa's and drooled many many times. I would love to throw a leg over one of those some day[img]i/expressions/face-icon-small-wink.gif[/img]