Tomahawk 40200, Инструкция по эксплуатации

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5
ENGLISH
FUEL
This engine requires a mix of 32:1 gas to oil ratio for break-in and normal operation.
To properly mix the fuel, add 4.0 oz of high quality 2-stroke oil to one gallon (or 32 mL of oil to one
liter) of 87–93 octane fuel.
We tested primarily with Red Line two-stroke oil. Other high-quality two-stroke oils will also work
well. Mixtures as rich as 25:1 are acceptable.
ENGINE BREAK-IN
Your engine has been test run at the factory but not fine tuned. It needs to be broken-in to ensure long life
of all components. This engine features a ringed-piston design, which requires a specific break-in proce -
dure to ensure a tight seal between the piston ring and cylinder. For this to be accomplished, this process
requires repeated heating and cooling cycles. The ring needs to seat itself with the cylinder walls for it to
develop a good seal.
Perform the break-in process with the engine mounted on your airplane. There is no need to bench-
run the engine prior to mounting it on your airplane.
Use a lightly loaded break-in prop to begin your break-in process (26 x 10)
Use the recommended fuel with a 32:1 gas to oil ratio.
• First tank of fuel: Run the engine on the
ground for its first tank of fuel and DO NOT
exceed 4000 RPM. Cycle the throttle bet -
ween idle and half throttle every minute.
• Second tank of fuel: Do not run at full
throttle on the ground for more than 30
seconds at a time. Fly the airplane and avoid
extended periods of heating the engine. Be
sure to mix in some cooling dives and lower-
throttle flying.
• Third tank of fuel: Fly the engine at high
throttle settings for longer periods of time,
up to one minute. This will help the piston
ring and cylinder to expand and contract,
helping the breaking-in process.
• Fourth tank of fuel:
Select one of the
recommended propellers for normal opera -
tion and mount it on your engine. Continue
to break-in the engine in flight. Use high
throttle settings for extended periods of
time. Monitor cylinder head temperatures
to avoid overheating.
STARTING AND RUNNING THE ENGINE
It is critical to the proper operation of your 125-TGW that you use the included filtered clunk. Fuel
should be filtered in your fueling system before it enters your model. Failure to properly filter the
fuel before it reaches your engine can introduce contamination into the fuel system.