Hello all, After buying myself a new sled (xc800sp love it!) I gave my wife my yr2000 triumph as her first sled. It runs great when starting it cold and runs great for hours, but it seems that restarting it after say lunch or .5 hr to 1.5hr it will idle fine but backfires at midrange throttle, also seems to have a loss of power, I have changed out plugs which has not helped, and have checked spark on the three cylinders while it is acting up but they all seem to be firing. Any ideas, or suggestions anyone? Thanks for any help in this matter.