hey bones, the bike started the floating tach right after the 500 mile service. i had washed the bike the day after. i did use the hose only-no nozzle-after covering the exhaust,handle bar controls, ignition switch just as the manual specified. the day after washing was the trip back over hwy2 to everett from spokane.dry all the way over. the tach problem surfaced then. sunday the 8th i rode back from lynnwood in solid rain w/ the exception of moses lake. worse ever since. the bike is garaged. i will let it heat up in the sun a few more days. if the problem is not gone by the end of the month. i will contact triumph. paul.