The Evolution .46 has two adjustments. Standing at the rear of the plane looking forward the adj. on the left side is the high speed needle. It is horizontal and if you look you will see a small spring steel clip that clicks on the needle adjustment as you turn it. Also, there is a very small pin that stick thru the adjustment pin and protrudes just a tiny
bit. You may have to lift the spring "clicker" to go over this pin. I think you should start about 1 1/2 turns out.

On the right side (looking from the rear of the plane) is the low speed adjustment. On the round blue collor is a small pin that protrudes up about 3/16" out of the blue collar. It is limited in forward/backward travel by
stops. You can only move it forward or backward about 1/4 - 3/8". This is primary low speed adjustment. Pushing it toward the rear of the plane to the "stop" richens the
mixture. Pulling it forward toward the propeller, leans the mixture. Start with it set about halfway between the stops. The pin will be pointing nearly straight up.



Start the engine, leave the Glow Ignitor on and let the engine warm up at a fast idle for a minute or two. Remove the glow ignitor. If it dies or the RPM decreases at a fast idle
it is too rich. Pull the slow idle pin (right side) further back toward the propeller.When you get it where it will idle fairly good advance the throttle slowly, let the RPM's build. Continue to open the throttle until you have it wide open. Open the high speed adjustment (left side) counter-clockwise slowly a little at a time.

What you want to do is slowly open or close the high speed needle until you reach maximum RPM and then richen the mixture (counter-clockwise until you hear the RPM drop about 300 RPM) or about 1/8 to 1/4 turn. AT full RPM when adjusted correctly you will clearly see some exhaust smoke and fine droplets of fuel.

Return to idle, advance the throttle rather quickly. It should not stutter or stumble. If it does, play with the primary low speed adjustment. Move the pin just a little at a time, probably toward the rear of the plane. Advance throttle quickly, let it run at high speed for 5 - 10 seconds and then return to idle, let idle for 5 - 10 seco0nds and return to high speed.

Once you get it taking throttle good, then it's just a matter of very minute adjustments to tweak it. If someone with experience is vailable, get with them and let them show you.

All adjustments should be very small, not more than 1/8 turn (preferably less) at a time.