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The K&B 1.00 cu. in. DF is a high-performance ABC type
engine, designed especially
for ducted fan models. It is powerful, rugged, and dependable,
and will provide countless
hours of sport, or competition performance if properly handled
and maintained.
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SPECIFICATIONS
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Displacement |
1.00
Cu. In. (16.4cc) |
Bore |
1.100
(27.94mm) |
Stroke |
1.060
(26.92mm) |
R.P.M. |
2,000
- 22,000 |
POWER
OUTPUT |
4.8
HP @ 22,000 |
Weight
(9549) |
27.3
Oz. (774g) |
Weight
(9550) |
23.5
Oz. (666g) |
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WARNING
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PLEASE
READ ALL SAFETY
INSTRUCTIONS! Failure to read, understand and follow
these instructions could result in personal injury and/or
property damage to yourself or others.
Take
a few moments to familiarize yourself with the various parts
of the engine. DO NOT DISASSEMBLE YOUR ENGINE! Doing so will
void your warranty. No exceptions!
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BREAK-IN
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1.
Do not run this engine on a test stand. Nothing can be gained
by so doing as you only expose yourself, and others, to possible
injury from the spinning rotor.
2.
Mount the engine in accordance with the instructions supplied
with the ducted-fan unit you may choose to install in your
model. Make sure that it is accurately aligned and firmly
bolted in place.
3.
After the complete system is installed in the airplane and
all of the connections are secure and functioning, you are
ready for your first engine/fan run-up and fueling.
4.
Prime the engine and turn it over once, by hand, before applying
the glow plug battery, or the electric starter. (It is recommended
that you have a helper hold the model while you are starting
the engine). Start the engine with the throttle in the idle
position. Avoid long periods of electric starter use. If the
fuel and ignition are correct, the engine will start instantly.
As soon as the engine fires, remove the starter and allow
the engine to warm up at half throttle before removing the
battery power from the glow plug.
5.
For the first run DO NOT run at full throttle
for more than a few seconds. Use this run to adjust the low
and mid-range setting on the carburetor. (See carburetor adjustment).
When you are satisfied that the carburetor settings are correct,
it is recommended that you run two or three tanks of fuel
through the engine, at a slightly rich setting, before attempting
your first airborne run. When you are sure that the engine
will hold full power, you are ready for your maiden flight.
However, to be on the safe side (to prevent possible sagging
of RPM due to the engine not being fully broken in), you can
achieve 98% full power with a slightly rich setting, which
should not impair the flying of the model.
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OPERATING
INSTRUCTIONS
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If
you are unfamiliar with this line of carburetors or are a
new modeler, please do not attempt to start the engine until
you have read and understand the following instructions:
1. NEEDLE VALVE SETUP
Locate an area to install the remote needle valve assembly.
This assembly must be in the fuel line between the tank
and the carburetor. The line should not exceed five (5)
inches in total length.
2. LINKAGE SETUP
Notice the barrel will rotate 360 degrees. Using your radio
and trim functions, set the barrel movement for full open
and full close. IMPORTANT: THE BARREL MUST CLOSE IN A CLOCKWISE
ROTATION. The opening in the barrel spraybar faces the crankshaft.
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NEEDLE
VALVE ADJUSTMENTS
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Note
that there are two fuel metering adjustments:
1. HIGH SPEED NEEDLE VALVE
This needle valve, located on the Remote Needle Valve Assembly,
controls all the fuel that comes to the engine, whether
the engine is running at high, mid-range, or idle speeds.
It does not affect the low speed rich/lean setting. The
High Speed Needle Valves main function, however, is
to meter the high-speed fuel mixture.
2. LOW SPEED and MID-RANGE ADJUSTMENT
The rich/lean adjustment is controlled by the slotted
screw located on the side of the carburetor where the low
speed disk is housed. The rich/lean mixture control is set
at the factory and may require only a fine adjustment
for your application. WARNING:
DO NOT RUN THE ENGINE AT A LEAN SETTING.
To adjust the mixture, loosen the bottom screw (do not remove)
and adjust the top slotted screw. This screw only turns
1/4 turn to either the right or left of center. It does
not turn all the way around. Turn the screw clockwise to
lean the engine and counter-clockwise to richen
the mixture. After adjusting the mixture, remember to lock
it into position by tightening the bottom screw.
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NEEDLE
VALVE ADJUSTMENTS - GENERAL
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As a starting
point for the high speed needle adjustment, completely close
the needle valve (clockwise), then open it (counter-clockwise)
four full turns. This setting is an average and may require
further adjustments. For higher altitudes (3,000 - 4,000 feet),
close needle valve approximately 1/2 turn. |
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PRESSURIZED
SYSTEM
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All series
94 carburetors must run with exhaust pressure from
either the muffler or tuned pipe connected to the fuel tank. |
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FUEL
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We recommend
the use of K&B 100+ or K&B 500, both contain a X2C synthetic
and castor oil mix. Of course, a similar high-quality fuel can
be used. Maximum nitromethane content should be limited to 15%
(K&B 100+ is 5%, K&B 500 is 12-1/2%). Use of inexpensive,
or poorly mixed fuels will seriously detract from the life of
this engine. We also recommend the use of an after-run oil,
such as Zap, Marvel Mystery, or automatic transmission fluid
for protection of the bearings, and other steel components in
the engine, after each days flying, or while it is not
being used for some time. |
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GLOW
PLUGS
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Glow plug
life is a function of time and of how hard you run the engine.
Lean runs are the quickest way to burn out a glow plug. This
engine is equipped with a No. 7311 KB-IL which is a hot-type
racing plug. There are many good colder glow plugs available
so you should experiment to find one that you feel is most effective.
Head shims are available and may be used under different atmospheric
conditions, and for different fuels that can affect the glow
plug life. |
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TUNED
PIPE and EXHAUST PRESSURE PIPE
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The Exhaust
extension supplied with this engine will work with most tuned
pipes available. However, the tuned pipe most recommended
to us (by those who have been running the K&B 1.00 cu.
in.) is the MAC 15cc tuned pipe. The pressure tap fitting
should be located in the center of the highpoint of the tuned
pipe and routed to the fuel tank with a medium size silicone
fuel line.
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©
Model Engine Corporation of America, All rights reserved.
K&B and the oval logo are Registered Trademarks of Model Engine
Corp. of America
Registered U.S. Patent Office
No
part may be reproduced without written permission from
MECOA/K&B -- P.O. Box 5 -- Sierra Madre, CA 91025 U.S.A.
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