Recently purchased new 2010 FJRA. Rhythmic rise and lowering rpm's approximately 900 - 1300 rpm's when motor is hot. Fluctuation increases with rising outside temperature of 75 degree plus Farenheit. Yamaha states idle to vary between 100-300 rpm. Yamaha shop found this fluctuation to be within specs. They had bike on cool day. I have previously owned 2005 and 2007 FJR's, neither of which had obvious idle fluctuation. Has anyone experienced this fluctuation on a 2010 FJR?