Tt600
 

I've just got a tt600re when you 1st start up I get a mechanical buzzing till it warms up
11k on the clock could it be starter sticking ?

If it sounds like it's coming from the top of the motor then mine does that and always has. Goes after warming up for 30 seconds or so. Someone on here might have a stab at what causes it but I've never worried about it.

Yup, my xt600 does that from time to time.... No worries. Perhaps the rings spinning a bit or something?