Hello, I have seen many videos of hurricane 600 running, they all seem to have a whirling noise when reving, almost sounds like a supercharger, what makes the noise? And is it normal? I was told it was the camchain being too tight.

 

Can you provide a video, focusing on the noise that you are describing?

 

since I don't have a good video of my hurricane running ill use one from youtube. Every video I have seen of a hurricane running it has that whining noise when reving.

 

If you mean that higher-pitched sound that sits on top of the lower-engine rumble, that's normal.

 

Ok thanks