I am getting weak spark SOMETIMES on my 99 700 RMK. Sometimes I don't get any. I checked CDI, Wire connections, Killswitch, Key Switch, Wiring Harness, Throttle Saftey Switch...What is wrong with my RMK? It seems to run okay once I get moving. I have brand new plugs....etc. If I idle for more than a minute, I loose all spark...even if I stick my finger in the plug cap when someone's pulling on it. My machine has about 15,000 miles on it. What else could be the problem?