Anyone else getting detonation on stock xp's?

[duffman]

I have an 08 163. The sled is bone stock, not even a can. I have been hearing it rattle most of the year. It sounded like a loose pipe spring so I just dismissed it, but got thinking more about it my last ride and noticed it was only starting to rattle halfway into a long pull. I siliconed the springs so they will not rattle and it is still doing it. I run pump premium, and it is doing it up at 7000'. What can I do? I am thinking about throwing a couple of gallons of race gas into the next tank, will this diagnose the problem? If it is detonation what would cause it on a stock sled, I really don't want to have to run race gas....?

 

[turboal]

if it is detonating the det sensor would go off and you would not miss the screen on start up and the annoying beep that is there that doesnt go away.
if no sensor is showing then you have a annoying rattle

 

[duffman]

I forgot about the sensor, thank you turboal!

 

[mtnpull]

There is a torque bracket up under the primary. That broke off on my 09 and caused some extra vibration and rattle.