Reedy 121VS User manual

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:: Introduction
Thank you for purchasing Reedy’s 121VS Nitro Engine.
Designed in-house by our esteemed engineering staff, this engine is
produced using state-of-the-art materials and high-tech manufacturing
processes. The result is a powerful, user-friendly engine suitable for
organized competition or casual driving sessions with your friends.
Please read the Owner’s Manual thoroughly before starting your engine
for the first time.
The following items are required to set up and start your engine:
• Model Car Fuel w/20% lubricant • 8.0mm Glow Plug Wrench
• Glow Igniter • 3mm Flat Tuning Screwdriver
• Fuel Bottle • MC59 Standard Glow Plug
• Air Filter Oil
Required Equipment

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:: Features & Technical Data
• ABC Construction
• Precision Ball Bearings
• Machined Aluminum
Heatsink Head
• 2-Needle Carburetor
• Uses Standard Glow Plug
• Reliable Pull-Start system
Part # 802
Displacement 3.49cc
Maximum RPM 36,000
Stroke 16.8mm
Bore 16.26mm
Cylinder ABC
Crankshaft Dia. 14.0mm
Glow Plug Type Standard

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:: Safety Instructions and Warnings
This product is a powerful internal combustion engine. It is not a toy.
As the owner, you are responsible for the safe and proper operation of
the engine and the vehicle in which it is installed.
• Because deadly carbon monoxide gas will be released in the engine’s
exhaust, it should only be operated outdoors.
• During operation, the engine will become dangerously hot to the touch.
Contact with the engine or parts connected to the engine could result in
a serious burn.
• This engine must only be operated with fuels designed for R/C car
engines.
• R/C fuels are highly flammable. Always keep fuel away from exposed
flames or other sources of ignition. Carefully read the warnings on the
R/C fuel container before use.
• Mount the engine securely and set throttle linkages as explained in the
R/C vehicle’s owner’s manual. Always utilize a throttle return spring.

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:: Safety Instructions and Warnings (cont.)
:: Installation
:: Installation
• Never stop the engine by slowing the flywheel with fingers or other
objects. Never attempt to plug the exhaust outlet with your fingers.
With the engine running at neutral, pinch the fuel supply line to stop the
flow of fuel to the carburetor.
• Keep spectators and small children at a safe distance when starting the
engine and operating the vehicle.
Please consult the R/C vehicle’s owner’s manual for proper installation of
the engine, clutch assembly, exhaust, and linkages. Start with final drive
ratio of 12.4:1. Depending upon the track layout and surface, the
optimum ratio may fall between 11.6:1 and 13.2:1.

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:: Final Adjustment (cont.)
....hour increments until the car accelerates quickly and smoothly.
However, if the engine speeds up momentarily and then cuts outs
abruptly when 100% throttle is applied, the mixture is too lean. In this
case, turn the low-speed needle counter-clockwise in one-hour
increments until the car accelerates quickly and smoothly.
3. The idle adjustment screw should be set so that the engine runs just fast
enough to maintain idle speeds without dying when the throttle is at the
neutral position. Increase idle speeds by turning the idle adjustment
screw clockwise and reduce idle speeds by turning the adjustment screw
counter-clockwise.
When the adjustments are set correctly, light smoke will be visible from the
exhaust and the engine RPM and acceleration will be strong and smooth.
Continually changing atmospheric conditions (temperature, humidity,
barometric pressure) mean that your engine will always require small
adjustments to optimize performance. Changes in altitude will also require
tuning adjustments.

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:: Final Adjustment (cont.)
: le n t an
:: Cleaning & Maintenance
Proper cleaning and maintenance of your engine will result in maximum
power output, fuel economy, tuning consistency, and longevity. Please read
and familiarize yourself with the following:
Air Filter - A clean air filter with well-oiled foam element is critical for
maximum performance and engine protection. Change and service air
filters on a regular basis to reduce the possibility of premature engine
wear and to maintain maximum performance.
Fuel Filter - Dirt particles can accumulate and restrict the flow of fuel.
Note: It is important to realize that a poorly performing clutch (bad
bearings, weak or broken springs, interference with engine or chassis
components, etc.) may trick you into making adjustments that are not
necessary or incorrect resulting in an improperly tuned and poorly running
engine. Be sure your clutch is in perfect running order at all times.

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:: Cleaning & Maintenance (cont.)
....started a few times to accomplish this. All fuel has been consumed
when the engine will no longer start. Now remove the glow plug and
inject a few drops of after run oil into the engine. Then re-install the glow
plug and turn the engine over for 3-5 seconds using your starter box or
pull-start. Remove dirt from the outside of your engine with a heavy brush.
Oily and greasy deposits should be removed with Kerosene or Methanol.
Parts Replacement - Over time, even a perfectly tuned and maintained
engine will experience a reduction in performance due to normal wear of
its mechanical parts. Replacing worn parts will ensure efficient operation
of the engine.
We recommend replacing the appropriate part if you
experience the following symptoms:
• Engine sound changes and easily overheats - The front and/or back
bearing are the likely cause and should be replaced.

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:: Trouble Shooting (cont.)
:: Warranty
:: Warranty
• The fuel line is broken or perforated.
Check and replace fuel line if necessary.
The Engine Does Not Accelerate Responsively
• Glow plug is damaged.
Replace glow plug.
• Needle settings are too rich.
Gradually close the high-speed and low-speed needles.
Your engine is warranted to the original purchaser for 30 days from the
date of purchase against defects in material and workmanship. Engines
that have been mishandled, misused, abused, or damaged by the user
are not covered under warranty. Associated Electrics Inc. is not liable for
any loss or damage, whether direct or indirect, incidental or
consequential, or from any special situation, arising from the use, misuse,
or abuse of this product.