Once our idle was correct we decided that it was time to feel the power difference. We took the sled to our track, started it up, and began our test tuning. Many burndowns could be prevented if people only followed that logic. Your sled might be jetted fine at full throttle but may burndown due to a lean condition in midrange. We prefer to use digital EGT gauges to check our temps, but you could achieve similar results by closely monitoring your plug color and piston wash.
Synthetic oils tend to skew the results enough to be inaccurate.
As we began to test our newly installed UFO's, this is where the tuning nightmare really began. As we said before, checking the safety of your EGT temps may be able to be accomplished by monitoring plug color and piston wash. But to really get the most from your UFO's, you really need exhaust gauges. We can honestly say that we feel it would be very difficult and time consuming to get your sled tuned without them. If you are a trail rider that's not interested in maximum performance, you might not care.