Starting the engine fuel, Glow plug – Evolution Engines 91NX User Manual

Page 7

Starting the Engine

Fuel

We recommend using high-quality Cool Power, Omega, or Power Master fuels containing 10 to
15% nitro. The Evolution Engine has been test-run using these fuels. If another brand of fuel is
used, it may be necessary to slightly adjust the needle valves to compensate for the differences
in fuel.

Glow Plug

The Evolution engine comes with a specially designed “Super Plug” that prevents idle and
transition flameouts. The plug’s unique shape directs the incoming fuel/air mixture away from
the plug element. When replacing the plug, be sure to replace it with another Evolution 2- or
4-cycle Super Plug (EVOGP1).

1. Fill the tank with the above-mentioned 10

or 15% fuel.

2. Reattach the fuel lines, making sure the

vent and clunk line are attached to the fuel
nipple and the muffler pressure nipple.

not attach the glow driver yet.

3. The high-speed needle valve should be

turned open 2-turns from closed for the
initial first start.

4. With the throttle fully open, place your

thumb over the carburetor or the exhaust
outlet of the muffler and flip the prop
clockwise through 6 complete revolutions,
thus priming the engine.

5. Close the throttle to the idle position and

have a helper hold your airplane.

If you are planning to use a tuned exhaust
system, we highly recommend the use of
either of the following Hangar 9

glow plugs.

HAN3015 #9 Performance Plug

HAN3020 #3 Performance Plug

The Hangar 9 START KIT (HANSTART) includes
everything needed, except fuel and starter, to
get the Evolution engine running.
6. Attach the glow driver.
7. Turn the engine over using an electric

starter. The engine should fire within
seconds of applying the starter.

8. Allow the engine to idle for 30 seconds.

Adjust the throttle trim if necessary to
achieve a constant slow idle.

9. With the glow driver still attached and a

helper securely holding the airplane, ad-
vance the throttle smoothly to full throttle.
The engine will transition to full rpm.

10. Reduce the throttle to idle and remove the

glow driver.