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How to Prime an RC Nitro

Nitro-powered RC vehicles and airplanes use a special blend of glow fuel that incorporates a mix of methanol, nitro methane and oil additives. While typical nitro-powered RC cars feature a single-cylinder two-stroke engine, certain RC model airplanes may accommodate multi-cylinder four-stroke engines as well. Before you attempt to start a nitro-powered RC vehicle or plane, you may wish to prime the engine's fuel system first. Priming the fuel system will allow the engine to start more readily while reducing additional wear and tear on the starting components.

Things You'll Need

Nitro glow fuel in suitable filling container

Instructions

Nitro-Powered RC Vehicles
- 1
  Fill the fuel tank with glow fuel using a suitable filling container. Clean up any fuel spills before attempting to start the engine.
- 2
  Cover the exhaust pipe opening with your thumb and engage the engine's pull start mechanism several times.
- 3
  Continue to engage the pull start mechanism until the fuel visible in the fuel line reaches the engine's carburetor. Set the engine's throttle arm to the full-throttle position to expedite the priming process, if needed.
- 4
  Remove your thumb from the exhaust opening and rotate the throttle arm to the idle position before starting the engine.
Nitro-Powered RC Model Airplanes
- 5
  Fill the fuel tank with glow fuel using a suitable filling container. Clean up any fuel spills before attempting to start the engine.
- 6
  Rotate the engine's throttle arm to the full-throttle position.
- 7
  Cover the carburetor opening with your thumb while rotating the propeller clockwise. Continue rotating the propeller until the fuel visible in the fuel line reaches the carburetor. Once the fuel reaches the carburetor, rotate the propeller one full revolution and remove your thumb from the carburetor opening.
- 8
  Restore the throttle arm to the idle position before starting the engine.

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