Here's the new updated operating guide for your reference:

KingTech Turbines "F" series, Kero Start operating guide:

1. Install engine on a simple stand to familiarize components and starting sequence
2. For ECU battery pack, use 3S LiFe pack at 9.9V or 7S NiMh at 8.4V, anytime your residual voltage falls under 7.9V the engine may not start.
3. When Learning RC, disconnect ECU battery to avoid initiating a starting procedure
4. If the combustion chamber of the engine is not properly cooled after a fail start, a wet start may or may not occur on the subsequent attempt, please refer to below to avoid a wet start.
5. If and when your engine fails to start, there may still be residual flame and fuel remain in the combustion chamber, please do the following to avoid a wet start:
a. Stick Low, Trim Low
b. Move Stick forward to activate rotor to further cooling the chamber.
c. Wait at least 3 to 5 minutes before resuming