Pilotage RC11936 [7/22] Start up guide

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Start Up Guide

Engine Installation

If using mounting brackets, they should be installed with the closed end to the rewall and the open end to front of the model.

If using the mounting stand-os, the cut ends should be mounted to the engine. If additional mounting height is needed, it should

be placed between the mounting hardware (brackets / stand-os) and the rewall. Make sure that all spacing is at and of the same

size, and that the surface is level so as not to induce any twisting forces to the mounting hardware. If warping is present, this could

cause damage to the engine or mounting hardware and in ight failure may result.

Spacers should never be used between the mounting hardware and the engine. In all cases, the rewall / airframe mounting

surface must be absolutely at. Potentially damaging forces can be exerted to the engine or mounting hardware which can result

in engine failure.

Check that there is free space around the carburetor (at least 1”/2.5cm) for proper cooling airow and circulation. If there is not

sucient space make appropriate adjustments. Make sure that your airplanes fuel tank and lines are made of silicone made for

use with gasoline. Check that the fuel tank is adequately vented and that the feed line clunk can move freely in all directions. We

recommend using a lter between your gas supply and airplane fuel tank. If you use a fuel lter between the airplane tank and the

carburetor, ensure that it is of adequate size to supply an unobstructed ow of fuel to the carburetor, otherwise the engine may

not run correctly.

Make sure that the engine cowling openings on your plane provide adequate airow for proper cooling. Ideally, all of the cooling

ns on the motor head cylinder should be exposed directly to an unobstructed ow of air. There should be 3 times as much cooling

exhaust area as intake area. Many planes have cowl openings that actually inhibit the proper airow for cooling single cylinder

engines. Such cowlings have openings designed to provide an optimal scale appearance. In order to achieve optimal performance

with this engine, the cowling may need to be modied to provide proper airow over the cylinder head heat sink.

Many types of fuelling devices (fuel dots, ller valves, etc.) are available for your use. In general the simplest most straight forward

fueling solution for your model is most often the best. Regardless of which device you decide to use, be very wary of air leaks in the

fuel tubing and in joints, as air in the fuel lines can be detrimental to the proper operation of your engine.

NOTE:

Always use threadlocker on engine mounting hardware, make sure your models rewall and engine box are adequately reinforced

(primed, and soaked in thin CA, etc.).

Engine Break In

Prior to using your motor in a model in ight, it should be properly broken in. Break in running should be done with regular

90US/95EU octane gasoline mixed with a high quality petroleum based 2 cycle oil at a ratio of 25:1. The engine should be run

installed in the airframe with wings attached on the ground for at least 20 minutes at 2500rpm. Ground running should be done

with a slightly smaller prop and with the cowl o to promote good cooling. It is not recommended that you run the engine on a

test stand, as they do not allow vibration energy to be properly dissipated. After this process your engine is ready to go.

During the break-in process (a couple of gallons of gas) the carburetor may need to be adjusted and the engine should be own at

light load and at various speeds to have the oil/gas run through it.

After you have run a couple of gallons of fuel through the engine you can then switch to fully synthetic 2 cycle oil mixed at a ratio

of 40:1. Note that when you switch to synthetic 2-cycle oil, it is likely that the carburetor mixture and idle speed will need to be

adjusted. We recommend using high quality synthetic 2 cycle oil.

ATTENTION!

Never use outboard motor 2 cycle oil.

Gasoline/Petrol Preparation

This model will only run on a mixture of standard gasoline and oil for 2 cycle engines.