User Manual

INTRODUCTION
BECOMING FAMILIAR WITH YOUR ENGINE
If you are familiar with the operation of model engines or just can’t wait to
run your new engine, please read through the Quick Start Guide included.
This guide will help you get started right away and also includes some good
recommendations. We do recommend reading through these operating
instructions in their entirety to familiarize yourself with the features and
operation of your new engine. We have also included a Troubleshooting
Guide should you encounter any problems.
Please use the photos below to familiarize yourself with the components of
your new Magnum XLS series engine.
1
CAUTION - PLEASE READ!!
.52 SIZE HIGH-PERFORMANCE
AIRCRAFT ENGINE WITH
TWIN-NEEDLE CARBURETOR
& BALL BEARINGS
Global Services 18480 Bandilier Circle Fountain Valley, CA 92708 Phone: [phone] Fax: [phone] Email: [e-mail]
Features:
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ABC Piston & Sleeve Technology
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Rear Needle or Standard Needle Valve Options
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High-Flow Quiet Muffler for More Power
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Dual Ball Bearing-Supported Crankshaft
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Dual Bushing-Supported Connecting Rod
XLS .52A ENGINE SPECIFICATIONS
Displacement: ................ .52ci (8.47cc)
Bore: ............................... 22.4mm
Stroke: ............................ 21.5mm
Practical RPM: ............... 2,200 - 18,000
Weight: ............................ 13.6oz (w/o Muffler)
17.4oz (w/ Muffler)
Thank you for choosing a Magnum XLS series aircraft engine. The XLS .52A
is a single cylinder, two-cycle engine incorporating ABC (Aluminum piston,
Chrome plated Brass sleeve) technology for long life and easy break-in. A
dual needle valve carburetor for precise fuel/airflow metering is standard.
The XLS .52A features an optional cast aluminum rear needle valve
assembly and high-flow muffler for more power and reduced noise. Your
Magnum XLS series engine was designed by expert engineers and built by
master craftsmen using only the highest quality materials and CNC
machinery. These qualities provide the long life and dependability you have
come to expect from an engine of this caliber.
Magnum XLS series model airplane engines will consistently give you
dependable performance and reliability and will be a source of satisfaction
and pleasure if you follow these instructions as to the engine’s proper and
safe use. You alone are responsible for the safe operation of your engine,
so act sensibly and with care at all times. This Magnum XLS series model
airplane engine is not a toy. It is a precision-built machine whose power is
capable of causing serious injury to yourself and others if abused or misused,
or if you fail to observe proper safety precautions while using it.
●
Keep spectators, especially small children, at least 20 feet away from the
engine while it is running.
●
Mount the engine securely in the airplane or on a suitable engine test
stand to run the engine. Follow the mounting instructions in your kit's
instruction manual or on the plans for individual mounting recommendations.
Do not clamp the engine in a vise to test-run it.
●
Use the recommended size propeller and follow the proper procedure for
mounting the propeller. Use the correct size wrench to tighten the propeller
nut. Do not use pliers.
●
Inspect the spinner, propeller and propeller nut on a regular basis, looking
for any signs of nicks, cracks or loosening.
●
To stop the engine, adjust the throttle linkage to completely close the throttle
barrel and therefore cut off the fuel/air supply. You can also pinch the fuel
line to stop the engine, but only if it is accessible. Do not throw anything into
the spinning propeller or attempt to use your hands to stop the engine.
●
While the engine is running, stand behind the engine to make any
adjustments to the needle valves. Do not reach over or around the propeller.
Do not lean toward the engine. Do not wear loose clothing or allow anything
to be drawn into the spinning propeller while the engine is running.
●
If you need to carry your model while the engine is running, be conscious
of the spinning propeller. Keep the airplane pointed away from you and
others at all times.
●
Do not use tight-fitting cowls over the engine. They can restrict air from
flowing over the engine which could result in engine damage from overheating.
ENGINE INSTALLATION
Engine Orientation
The XLS .52A can be orientated in any position on the firewall. Keep in mind
that when the engine is mounted inverted, carburetor adjustments will need
to be made differently and the fuel tank may need to be lowered. (See fuel
tank size and orientation to carburetor on the next page.)
XLS .52A Aircraft Engine