Move the sliders for stuff, and make sure to have turbo mode on Space=Starter (rpm can not go down while holding this) To Start: Move the Throttle Slider to 50% or Higher, then set 'ignition' to one, then hold space until the engine catches, then you just do whatever. Recommended 'manual' Idle RPM is ~1400-1500 (throttle at 15). Do NOT have the throttle below 10 unless above 2500 RPM, or the engine will stall, unless your trying to rev down To Turn Off: Set Ignition and throttle to 0, in whatever order, and boom, its off.
Credits: 1 day of my life pain Scratch (obviously, otherwise, where else would i have made this?) For Those who need directions for Turbo Mode: click 'see inside' at the top right, NOT in full screen, then go to the top left, click 'edit', this will bring down a drop menu, with the options 'restore' and 'Turn on Turbo Mode', if it says turn off, you already did it, and you can start playing with the engine, otherwise, select 'Turn on Turbo Mode' and you can start playing around, I guess.