i bought a yamaha hour meter for my 06 yz450f and installed it this morning and it doesn't seem to do anything. the package says it will show engine rpm right at start up. mine just shows 0. i even put the wire wrap under the covering that they have over the 2 small wires going to the spark plug. even tried holding the wires tighter and closer together with it running and still no reading. did i do something wrong or has anyone ever had a bad one of these. also the wire on the meter itself was pushed all the way to the back of the slot.. any info or ideas would be appreciated. i didn't run the bike for any period of time today to see if it will keep track of the hours (rained all day long here) i just assumed if it was working it would've registered the rpm for at start up.