I have the same bike an 06 FJR in the gold colour mine idles just like you'res when warm a bit higher from dead cold in winter how's the clutch been in yours mine has done just about 166 KMs or a touch under i seen an Australian bike club photo of the speedometer reading on an 86 FJ 12 red and white with 660 odd KMs those figures are amazing stay safe and upright my friend from the Bellarine peninsula Geelong VIC