well my GPX has clocked up 45000kms and on cold morning starts, it idles at about 1300rpm, then as it gets warmer it drops to about 550rpms during idle (at the traffic lights)... hope that helps.
righto, sounds all good then! mine is getting about 1500 then 846... but thats of a digital reading so its probably looks more like 500 when warm? anywho, seams to be running sooth now so yea!