Well said Silver. I sometimes beat my head against the wall with customers using the lazer temp guns. I can get over 100 degrees in temp readings just by moving the pointer less than 1/2 inch on the top of the cylinder. I am no metallurgist but this cant be possible. Also the brightness of the surface being checked has a great deal to do with the temps reflected. The flatter or darker the surface the more heat it will show and the brighter or shinier the less temp it will read. The only way to know your real engine temps are with a thermocoupler and an in flight temp recorder. All two cycle engines and I dont care what brand they are will run 300 degrees plus when tuned properly. Pulling the throttle back and landing dramatically changes both the temps and the plug color. To check a plug you must run it long enough to establish a color on the plug and then shut the engine off instantly at that rpm and needle setting to know. If your engine is two years old the carb may need to be rebuilt. The neoprene or rubber components get hard over time and should be replaced especially if it has been setting up.

Keith
BME