My knocking 06' 450er

[Motoman51]

Can anyone help? My new 06 450er has what seems to be a knocking noise coming from the engine. I listen to my brother in law's 05' 450r and I could not hear the noise. Any suggestions? I have heard that this is common in the 06' ER. Thanks for the help

The engine is just a bit louder

[gooch450r]

If you're running premium and its still knocking - take it back to the dealer. The '06 engine is supposed to be a little louder, but it shouldn't 'knock'.

Oh it could also be ur chain. Mine was too loose and knocked

[Lonestar_R]

They Knock its normal.....do a search you find lots of posts on this subject