Last summer my fastrak took awhile to warm up or so I thought. I mowed the yard last night when it was a little cool out and the engine never would get up to speed. I finally shut it off and was going to make sure it was firing on both cylinders, but when I put my hand on the cylinder closest to the seat it was cold to the touch. I pulled that plug and it looked fine except it was a little wet. I dried off the sparkplug, reinstalled it and both cylinders ran fine. I guess I have been running on 1 cylinder until it at startup for awhile. Anybody have any similar experience?