on boards suck your not getting a reading from the location you want it from which is right in the center of the head at the glow plug. Getting a reading on the outside of the head or block does not work hense the reason feeling the head to test the tamp is kinda foolish. Yes putting your hand on the head at the races helps you get a idea where your temp is at and will help you once you know what it feels like when it is at the temp that it should be anyway. Temp guns are not going to break the bank but a new motor can. Yes I know people who don't like to tune by temps but more by oil stream and performance but you NEED to keep a eye on your temp or your going flat out plane and simple burn your motor up. I personaly spend big time $$$ for my mills and I will never hit the track without my temp gun.


Running a 4 stroke motor cool is in no way the same as running a 2 stroke motor so I'm not getting the 45 minute run thing.