2007 RMZ450 Engine noise

[RM125]

Just bought a 2007 RMZ450 find the engine is quite noisey when started up goes away a bit as the bike warms up only being out on it once for about an hour. Has done around 65-70 hours from new I did oil and filter when I got it. The noise is kind of a rattle in the top end just seems louder than the motor should sound. Anyone encountered this with this bike I am sure I read somewhere these bikes make a lot of engine noise either way I think I will throw a new piston at it for peace of mind.

Feedback appreciated
Cheers.

[scorry]

yeah my cuz has an 06 one and it was real noisey, he put a new piston in it and it was mint, he did his at 50hrs and it had some wear on the skirts too

[chop]

They are quite noisey engines but it maybe the cam chain needs tensioning?????? They do need to be looked esp at that sort of hours

[RM125]

Correct me if I am wrong I think the 07 has automatic cam chain tensioners? I thought it could be the cam chain I know the 05/06 are manually adjusted.

[t3mp0r4ry nzr]

agreed they are noisey engine even when new!

[soundbeltfarm]

yeah auto camchain tensioner.

they all knock a bit .
bloody good bike.

[RM125]

Think I will do the top end just for peace of mind. Picked it up for $5000 with full yoshi stainless system.

[Danger]

Good call get it done before it costs more $!

[Motoxparts]

Hey if you would like some good engine parts for the rmz checkout www.motoxparts.co.nz