OUR RECOMMENDATIONS
The following items are recommended for use with your Magnum XLS
series aircraft engine. These items are recommended for initial start-up
and running. Please read through the Operating Instructions for further
details.
Fuel:
We suggest Power Master 15% 2-Stroke Blend (P/N 275198)
for break-in.
We suggest Power Master 15% 2-Stroke Blend (P/N 275198)
for normal use.
We suggest using Power Master brand fuels. Power Master fuel comes
in many different nitromethane contents that can be used in your XLS
series engine. Power Master fuels are blended using only high-quality
nitromethane, methanol, Castor Oil and synthetic lubricants to provide
high power output, along with easy starting and unmatched lubricating
and heat dissipation qualities. For the lower nitro content necessary for
break-in and for normal use, too, use 15% 2-stroke blend. After break-in,
for extra performance, you can use up to 30% 2-stroke blend.
For more
information about using 30% fuel, please refer to the Operating
Instructions.
Fuel Tank:
Dubro 6oz. Fuel Tank (P/N 568469)
Dubro fuel tanks are a perfect match for your XLS series engine. This
size recommendation will give you about 15 minutes of run-time at full
throttle. Dubro fuel tanks are possibly the easiest fuel tanks to assemble
and maintain.
Glow Plug:
Thunderbolt # 3 Glow Plug (P/N 115559)
The Thunderbolt # 3 glow plug is designed to be used in high-performance
engines using fuels containing 10% - 30% nitro content and in any
environment. It is a "hot" type of glow plug for easy starting, excellent
transition and incredible top end. The glow plug is also very durable and
able to withstand repeated use, day after day.
Propeller:
APC 8 x 4 Propeller (P/N 608240)
We have found that XLS series engines run best using APC brand props.
They are designed to be very efficient and run quiet at high rpm’s, and
they are also durable. Use this size prop to break in your engine, then
change to the prop that best suits your application. Use the guide in the
Operating Instructions to help you find the right size propeller.
Glow Starter:
Magnum Glow Starter w/Meter (P/N 237438)
The Magnum glow starter is an excellent choice for heating the glow plug.
It uses a Sub-C NiCD, includes a meter to determine the quality of your
glow plug, and it also includes a charger to recharge the battery. It’s a
very economical product to purchase and can be used with any engine
that uses a glow plug.
XLS .15A AIRCRAFT ENGINE QUICK-START GUIDE
The following information is provided to get your new Magnum XLS series engine running right away with minimal effort. We have listed our
recommendations for fuel, propeller, starting procedures and other recommended accessories. Also included is general information about the
accessories needed for the engine that we hope you will find helpful.
This Quick-Start Guide should not be used as a replacement for the Operating Instructions included; rather, it should be used along with the Operating
Instructions. We highly recommend reading through the Operating Instructions to familiarize yourself with each part of the engine, along with the
proper procedures for engine break-in and tuning.
Engine Mount:
Dave Brown .15 Size Engine Mount (P/N 218119)
The Dave Brown engine mount is a glass-filled reinforced nylon mount
that mounts to a plywood firewall in the model. It is lightweight, strong
and easy to install.
Engine Preparation
❑
1) Mount the engine to the recommended engine mount. A wood beam
mount built into the airframe would also be sufficient.
❑
2) Install the muffler onto the engine using the hardware provided.
The muffler cone can be rotated to better suit the installation in your
model. Be sure to tighten the nut securely to prevent the muffler cone
from loosening.
❑
3) Install the propeller to the engine using the propeller nut and washer
provided. Tighten the nut securely using an adjustable wrench.
❑
4) Connect the fuel lines from the fuel tank to the engine. The fuel
pick-up line should be connected to the fuel nipple on the carburetor
and the pressure line should be connected to the pressure nipple on
the muffler.
Engine Starting
❑
1) Carefully turn the high speed needle valve in completely until it stops,
then turn the needle valve out 2-1/2 turns. This is the mixture setting for
initial starting. Do not readjust the low speed needle valve.
❑
2) If hand starting, prime the engine by opening the throttle barrel
completely, placing your finger over the carburetor opening and flipping
the prop through compression 2 -3 times. If you will be using an electric
starter,
do not
prime the engine. The starter will turn the engine over fast
enough to draw fuel on its own.
❑
3) Connect the glow starter to the glow plug. Open the carburetor barrel
to about 1/4 throttle and start the engine. If you are starting the engine
by hand, you will need to vigorously flip the prop several times before the
engine will start. Once the engine begins running, immediately turn the
high speed needle valve in about 1/4 turn to keep the engine running.
❑
4) Advance the throttle to full while turning the high speed needle
valve in to keep the engine running. The engine should be producing a
very noticeable white exhaust from the muffler and sound like it is running
rough. Allow the engine to run only for about 5 minutes, then shut the
engine off.
❑
5) Now that you have started your engine, it must be properly broken
in. Proper break-in will seat all of the moving parts, particularly the piston
and cylinder. This procedure takes about 20-30 minutes of run-time
and is highly recommended. An engine that is properly broken in will
produce more power, be more user-friendly and last much longer than an
engine that does not receive a break-in period. For this reason we highly
recommend following the break-in procedure detailed in the Operating
Instructions before you run the engine further.
QUICK-STARTING PROCEDURES