Pilotage RC11937 [8/22] Carburetor adjustments

Pilotage RC11936 [8/22] Carburetor adjustments
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The engine will only operate properly when the correct grade of gasoline is used: EU95/US90. Mix the gasoline with 2 cycle engine
oil at a 25:1 ratio when breaking it in (see engine break in section). Once the engine has been broken, in mix the gasoline at a 40:1
ratio. To quickly determine how much oil is needed for your gasoline container please refer to the chart below:
Gasoline (95 EU/90 USA)
2 Cycle Oil - Petroleum Based
(break in phase)
2 Cycle Oil – Synthetic
(regular use)
4 Liters 160 ml 100 ml
1 Gallon 5.12 .oz. 3.2 .oz
2 Liters 80 ml 50 ml
½ Gallon 2.56 .oz. 1.6 .oz.
1 Liter 40 ml 25 ml
¼ Gallon 1.28 .oz .8 .oz
Starting the Engine
1. Choke Lever
2. Throttle Lever
3. Idle Speed Adjustment Screw
4. Low Speed Mixture Adjustment Needle
5. High Speed Mixture Adjustment Needle
6. Ignition Sensor
COLD
Step 1
Close the choke, advance the throttle to very slightly above
the idle position, turn on the ignition and briskly ip the
prop with an electric starter or starting stick until the engine
res and then dies. If the gas line is dry, this may take 20 or
more ips.
Step 2
Open the choke and briskly ip the prop with an electric
starter or a starting stick. The engine should start in just a
few ips. If it acts like it wants to start but doesn’t, you may
need to advance the throttle slightly.
WARM
Step 1
Open the choke, advance the throttle to very slightly above
the idle position, turn on the ignition and briskly ip the
prop with an electric starter or a starting stick. The engine
should start in just a few ips. If it acts like it wants to start
but doesn’t, you may need to advance the throttle slightly.
Step 2
Once the engine begins to run smoothly close the choke.
ATTENTION!
It is possible to ood the engine by over choking. In this case, the spark plug must be removed and dried of excess fuel. Make sure
to have the ignition o when removing the spark plug.
Carburetor Adjustments
Every engine is preset to handle average mixture settings. This will most likely allow the engine to start and run in most locations.
As altitudes and barometric pressures vary by location and even as the time and ambient temperature uctuates, it is necessary to
adjust the carburetor to achieve optimum performance.
ATTENTION!
Never make adjustments to the carburetor while the engine is running. Always use a tachometer to aid in making adjustments to
your carburetor. Do not remove the carburetor spring (2) as the spring helps keep the carburetor buttery aligned properly. Merely
release the ends of the spring so that it no longer holds the buttery closed.

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