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 SPE ENGINES
Operator’s Manual for SPE-26cc
SPECIFICATIONS
Displacement: 26cc 1.6 ci
Horsepower: 2.3 BHP
Ignition Style: Electronic Ignition w/ auto advance
RPM: 1,400 – 9,000 RPM
Fuel: Mixed Gasoline
Weight: Approximately 36 oz with all accessories
SAFETY TIPS AND WARNINGS
o Always use a balanced spinner and a balanced prop. An unbalanced spinner and
prop combination
will cause high levels of vibration and may cause the propeller shaft to break.
o Always use a lightweight spinner on your engine. Lightweight spinners are
considered to be those
with a cone wall of 1mm
or less. Heavy spinners could cause the propeller shaft to break. ·
o Securely tighten the spinner and prop on the engine to prevent it from being
thrown off the
engine while running. ·
o Never use a prop that has hit the ground. Even though it may look good from
the outside, it may
be cracked on the inside which may cause it to disintegrate while in use. Do not
use a nicked, cracked or split propeller.
o Keep foreign objects away from the propeller. Make sure that nothing can be
“sucked in” by the
propeller. Never start the engine on loose gravel or sand. ·
o Keep onlookers away from the running engine, especially small children. ·
o Do not attempt to stop the engine by throwing anything into the path of the
propeller. ·
o Make sure the fuel line is well-secured to the engine and to the fuel tank so
that it won’t come
off in flight.
o Do not use silicone fuel line because it will be attacked by the fuel. Use
vinyl or neoprene
rubber fuel line.
o Always secure the fuel line away from the cylinder head. The engine’s heat can
damage the fuel
line. ·
o Never touch the engine after a run. The engine will be hot and it may burn
you.
o Before transporting your model, remove all the fuel from the fuel tank and
fuel lines.
o Always use high-quality oil intended for 2-stroke engines.
o Use only low octane, alcohol-free gasoline. The carburetor diaphragm will
gradually deteriorate
if you use gasoline with alcohol (ethanol, gasohol, etc.).
o You will need to replace the diaphragm in about 80 hours of operation if you
use gasoline with
alcohol.
o · Muffler pressure to the fuel tank is not required.
o · Do not install your throttle servo or kill switch servo inside the engine
compartment. Doing
so could cause radio interference. Install all electronic radio devices at least
305mm [12"] away from the engine. The throttle pushrod should be non-metallic.
o · If the engine is not to be used for more than a month, drain the fuel tank
and remove any fuel
from inside the
carburetor. Do this by running the engine at idle until it quits by running out
of fuel. Keeping
gasoline inside the carburetor over an extended period of time will damage the
diaphragm valve and clog passages inside the carburetor.
o · Because the carburetor is more complicated than those used in glow engines,
keep the fuel
clean by using a fuel filter. Use a filter intended to be used with gasoline
engines. Metal filters intended for glow engines are too coarse and will not
screen out finer particles. Always filter your fuel by using an appropriate
filter before putting it into the airplane’s fuel tank.
o · If you intend to run this engine on an engine stand, or on any other rigid
mount, use rubber
mounts. The crankcase and other parts of the engine may crack if you do not
provide some kind of vibration absorption mechanism.
o A rubber mount is not necessary if the engine is mounted on a model airplane.
o Do not operate the engine in a closed room or where ventilation is not
adequate.
o Gasoline is extremely flammable. Keep it away from an open flame, excessive
heat or sources of
sparks. Do not smoke near the engine or the fuel tank.
o This engine was designed for use in a model aircraft. Do not attempt to use it
for any other
purpose.
o ·Always install a kill switch that can be operated both manually and through
the R/C
transmitter.
PARTS LIST
SPE-26cc Engine w/Muffler
Ignition Module
Propeller Flange with Propeller Washer
Propeller Bolt
(4) 6mm x 10mm socket head cap screws with Lock
Washers and Flat Washers
(4) 6mm x 12mm socket head cap screws with Lock
Washers and Flat Washers
Spark Plug Wrench
4mm Allen Wrench
FEATURES
o Automatic Ignition Timing: The SPE-26cc features an electronic ignition system
that advances the
ignition timing as the
engine RPM increases. This insures a retarded ignition timing at low RPM for
easy
starts and good
low-end engine
performance, and advanced timing at high RPM for good high-end power.
o The ignition module is waterproof and vibration proof. ·
o The ignition module runs on any 4.8V battery.
o The current consumption is approximately 188 mAh.
SPARK PLUG
The recommended spark plug is a Champion RDJ-8J.
To avoid improper operation or possible engine damage, do not use any
other type of spark plugs.
The plug gap should be 0.4mm to 0.6mm [0.016" to 0.024"]. If the plug gap is
incorrect, adjust it
with a spark plug gapping tool, wash it with gasoline and allow it to dry
completely before you
reinstall the plug in the engine.
Note: If you want to check if the spark plug works, remove the spark plug from
the engine, connect
it to the coil and make sure the metallic threaded end of the spark plug touches
the engine. Spin
the propeller rapidly through top dead center and check for a spark. This
procedure only works in
a dark room as there is too much light outside to see the spark. The various
spark plug
manufacturers have much information on their web sites regarding spark plug
performance and
health. For more information, check: http://www.championsparkplugs.com/sparkplug411.asp
PROPELLER
Always use a well-balanced, high-quality propeller. During our tests, our
SPE-26cc turned a 16 x 8
JXF wooden prop at 7850
RPM. The engine was new with 90 minutes of breaking in. The test
conditions.
Were: Temperature
10°C [50°F], humidity 45%,
elevation at sea level. Performance
may vary depending on atmospheric
conditions.
The recommended propellers are: 16 x 8”
through 18 x 6”
OIL
Select the best quality oil you can find for 2-cycle model airplane engines.
Use the standard fuel/oil ratios as shown below. Never experiment with cheap oil
or with obscure
brand name oils.
Break-in: 1 gallon of gasoline with 25:1 (4%) oil content
ratio. · Normal running: 40:1 (2.5%) oil
content ratio.
PREPARE THE ENGINE
1. Check to see that all screws and bolts are tight. Check carefully for any
cracks, broken or
missing parts. Tighten or replace
before proceeding.
2. Install the engine mounting stand-offs on the engine using four 6mm x 12mm
[3/16" x 15/32"]
socket head cap screws.
3. Secure the ignition control module ground wire to the engine using one of the
6mm x 12mm [3/16"
x 7/8"] socket head cap
screws.
4. Connect the ignition control module to the pick up sensor. The connector is
polarized and will
only plug in one way.
5. Connect a kill switch to the ignition control module. It is recommended to
install a manual
switch and a servo operated switch.
This can be accomplished using two receiver On/Off switches.
6. Connect the ignition module battery. Any 4.8V, 500mAh and above battery will
work well for
this. The approximate current
consumption of the ignition switch module is 188mAh.
INSTALLING THE SPE-26cc ENGINE ON YOUR AIRPLANE
Note: The length of the engine from the back on the engine mount to the
propeller washer
is 154mm
[6.0625"].
1. Use the supplied mounting template (on the back cover of this manual) to
drill the engine
mounting bolt holes and the necessary clearance hole on the firewall.
2. Install the engine on the firewall using four 6.mm x 12mm or [10-24" x 3/4"]
socket head cap
screws, four #10 flat or lock
washers and four #10 blind nuts. Use thread-locking compound for security.
3. Install a manual and radio operated kill switch (GPMG2150). Install a kill
switch servo at
least 305mm [12"] away from the
engine.
4. Install the throttle servo at least 305mm [12"] away from the engine. Make
sure that you get
the carburetor’s full range of
rotation with your servo travel.
5. Install the ignition module securely in the airplane forward area. It is
recommended that a
thin piece of foam rubber be placed
between the module and the mounting surface and that
rubber bands are used to
hold the module in
place. 4mm [5/32"] screws
and washers can also
be used to secure it in place, but soft mounting the module
is always the
best choice.
6. Secure all connections with shrink tubing.
Note: The SPE-26cc engine must be installed on a 9mm [3/8"] lite-ply firewall or
on a 6.4mm [1/4"]
birch ply firewall. The firewall Stand offs must be securely glued to the
airplane. Use triangle
stock and pin the firewall with hardwood dowels to reinforce the firewall glue
joints. Never
install the SPE-26cc engine onto a firewall thinner than specified because it
may fail due to the
power of the engine. SPE263033 4 different sizes (30mm,40mm,50mm,60mm)
7. Cut all necessary clearance and cooling holes in the cowl.
8. Make sure the cowl is secured to the airplane and that the spinner to cowl
clearance is at
least 3mm [1/8"].
BREAKING IN THE ENGINE
Do not adjust the high-speed needle on the carburetor to break in the
engine. If you do so,
carbon will accumulate
in the spark
plug and that will make ignition difficult.
Do not run at full power for
extended periods of
time while breaking in your engine. ·
Make sure that the engine has adequate cooling. While breaking in, the engine
may run at slightly
higher temperatures. · If you
wish to do so, you can break in your SPE-26cc while flying your
airplane. Just
make sure you
observe all recommendations
above.
STARTING PROCEDURES
There are two recommended ways to start the SPE-26cc Engine.
A. Manual Starting:
Note: Use a thick glove to protect your hand while hand-starting the SPE-26cc
Engine.
1. The propeller should be installed on the prop spacer so that it is
comfortable for you to flip
it through compression. You also
need to position it in a way that when you flip the propeller; the magnets are
20° clockwise from
the magnet pick up.
2. Have someone help you hold the airplane while you start the engine.
3. Make sure the ignition is OFF, close the choke on the carburetor and open the
throttle slightly
from the idle position.
4. Rotate the propeller slowly about 10 to 20 times (more in winter) until fuel
begins to be drawn
into the carburetor. Another way
to prime the engine is to rotate the prop clockwise from bottom dead center to
top dead center
(compression) and then counter
clockwise back to bottom dead center repeatedly.
5. Switch the ignition to ON.
6. Flip the propeller clockwise several times briskly.
7. After you hear some initial firing sounds, move the choke lever to the OPEN
position.
8. Set the throttle to a high idle. Set the prop so that the magnets are 20°
clockwise from the
magnet pick up when viewed from
the front.
9. Flip the prop through compression rapidly. If this is done properly, the
engine will start
between the first and the eighth flip of
the prop. During our testing, starting took an average of 3-4 flips.
10. After starting, let the engine idle for two to three minutes. Open and close
the throttle
slowly until the engine runs smoothly at
idle and at full throttle. Acceleration should also be smooth.
11. If your engine does not start, repeat the procedure.
spinner fits.
Installation PRE flight
18x10 JXF or APC propellor
B. Electric Starter Starting:
1. Make sure you use a good quality, lightweight aluminum spinner.
2. Have someone help you hold the airplane while you start it.
3. Make sure the ignition is OFF, close the choke plate on the carburetor and
open the throttle
slightly from the idle position.
4. Use your electric starter to turn the engine over for several seconds.
5. Switch the ignition to ON and open the choke.
6. Set the throttle to high idle and use your electric starter to turn over the
engine until it
starts.
7. After starting, let the engine idle for two to three minutes. Open and close
the throttle
slowly until the engine runs smoothly at
idle and at full throttle. Acceleration should also be smooth.
8. If your engine does not start, repeat the procedure.
ENGINE ADJUSTMENTS
Always make high- and low-speed needle adjustments with the engine shut
off. Also make sure the
ignition is OFF. · Adjust the
needle marked “H” for high-speed RPM. Adjust the needle marked “L” for low-speed
RPM.
A. Normal high- and low-speed needle settings:
It is not necessary to change the needle settings if the engine runs smoothly.
Normally only the
“H” needle will need adjustment
from time to time and only by a small amount.
H: Open the needle 2 turns from the closed position (±1/4 of a turn in winter).
L: Open the needle 1-3/8 turns from the closed position (±1/4 of a turn in
winter). Only adjust
the high- and low-speed needle
within the above range.
B. Idle adjustment:
5:1 reduction gear starter easy to crank SPE gas engine
Note: Do not confuse the idle screw with the low-speed needle “L”. The idle
screw physically
adjusts how much the carburetor
valve can close. The low-speed needle “L” adjusts the gasoline-to-air mixture
when the engine is
running at low RPM. If your
engine appears to work correctly except that the low RPM are not as low as you
want them to be,
and then adjust the idle screw.
If your engine behaves erratically at low RPM, then adjust the low-speed needle
“L”. When
adjusting, turn the screw about 1/8 of
a turn each time. A dirty plug will make it difficult to adjust the idle RPM.
Follow the
recommended procedures if any of the
following happens:
Problem:
1. The engine hesitates when accelerated rapidly.
2. The RPM increases at idling.
3. The engine stops when the throttle is moved from high to low.
Solution:
Your low-speed needle “L” is too lean. Open it up about 1/8 of a turn and try
again.
Problem:
The idle is not steady.
Solution:
Your low-speed needle “L” valve is too rich. Close it 1/8 of a turn and try
again.
C. High-speed Adjustment:
The high-speed RPM and transition performance is adjusted with the high-speed
“H” needle valve.
When adjusting, turn the screw about 1/8 of a turn each time. The position of
the “H” needle will
vary according to air temperature and field elevation. If your engine is running
smoothly, then do
not adjust this needle valve. Follow the recommended procedures if any of the
following occur:
Problem:
1. Engine stops at full throttle.
2. Engine hesitates when accelerated rapidly.
3. The engine will not come up to full RPM at full throttle.
Solution:
Your high-speed needle valve “H” is too lean. Open it up 1/8 of a turn and try
again.
Problem:
1. Your engine does not reach full RPM.
2. Carbon build-ups appear consistently on your spark plug.
Solution:
Your high-speed needle valve “H” is too rich. Close it up 1/8 turn and try
again.
2-Year Limited Warranty For USA
SPE Engines warranty’s this product to be free from defects in materials and
workmanship for a
period of three (2) years from
the date of purchase. During that period, SPE Engines will, at its option,
repair or replace
without service charge any product
deemed defective due to those causes. You will be required to provide proof of
purchase date
(receipt or invoice).
• This warranty does not cover damage caused by crash, abuse, misuse, alteration
or accident.
Damage caused by customer
disassembly, tampering, use of substandard fuel, use of incorrect accessories
(spark plug, prop,
etc.) or any use of the engine
for which it is not specifically intended will automatically void the warranty
of the engine. If
there is damage resulting from these
causes within the stated warranty period, SPE Engines will, at its option,
repair or replace it
for a service charge not greater than
50% of the current retail list price. Be sure to include your daytime telephone
number and e-mail
address in case we need to
contact you about your repair.
• Under no circumstances will the purchaser be entitled to consequential or
incidental damages.
This warranty gives you specific
legal rights and you may also have other rights, which vary from state to state.
• If you attempt to disassemble or repair this unit yourself, it may void the
warranty.
Along with your engine and proof of purchase date, please include a complete
written explanation
detailing the problem(s). State
your name and address clearly. For repairs not covered under warranty, you will
be notified of the
charges so you can send a
check.
Outside USA and Canada, contact local importer for warranty information.
SPE263002 SPE263002R
Auto timing advance ignition system
Side mount & rear mount muffler
SPE-26Z ENGINE
The price list of spare parts USD
No. Description Type Quantity Sale
1 SPE263001 Cylinder SPE26-1 1 $30.00
2 SPE263002 Muffler Single26 1 $25.00
3 SPE263002R Muffler (rear mount) Single26 1 $35.00
4 SPE263003 Muffler gasket PQ-26D 1 $1.00
5 SPE263004 Muffler screw M5*45 2 $1.00
6 SPE263005 Carburetor insulator HJK 1 $6.00
7 SPE263006 Gasket Insulator Carburetor HJK-26D1 1 $1.00
8 SPE263007 Carburetor gasket HJK-26D2 1 $1.00
9 SPE263008 Carburetor£¨WALBRO£© WT589 1 $79.00
10 SPE263009 Carburetor screw M5*60 2 $1.00
11 SPE263010 Cylinder gasket QG-26D 1 $1.20
12 SPE263011 Cylinder screw M5*25 4 $1.50
13 SPE263012 Rear crankcase SPE26-2 1 $16.00
14 SPE263013 Front crankcase SPE26-3 1 $16.00
15 SPE263014 Crankcase screw M5*35 4 $1.50
16 SPE263015 Crankcase gasket QZ-26D 1 $1.50
17 SPE263016 Rear crankcase gasket 12*22*7 1 $3.00
18 SPE263017 Front crankcase gasket 12*28*8 1 $3.00
19 SPE263018 Crankcase front/rear bearing 5P6201-Z3 2 $10.00
20 SPE263019 Crankshaft (including connecting rod) SPE26-4 1 $31.50
21 SPE263020 Woodruff key 10*3 1 $2.00
22 SPE263021 Piston HSQ26 1 $8.50
23 SPE263022 Piston ring 1.3*1.5 2 $4.50
24 SPE263023 Piston pin Q8*28 1 $2.00
25 SPE263024 Piston pin retainer Q8 2 $1.00
26 SPE263025 Small end bearing N8-14 1 $4.50
27 SPE263026 Front crankcase ring Q 32 1 $2.00
28 SPE263027 Prop Hub LQ36*50 1 $1.60
29 SPE263028 Rear propeller washer HQ36*M10 1 $6.00
30 SPE263029 Front propeller washer QQ36*M10 1 $4.50
31 SPE263030 Prop screw M10*35 1 $1.00
32 SPE263031 Rear propeller washer screw M4*35 6 $2.50
33 SPE263032 Flywheel nut M8*1 1 $1.00
34 SPE263034 Spark plug spanner M16-14 1 $2.00
35 SPE263033 Standoffs grander 26M-28 4 $35.00
36 MAI-II-26 Auto advance timing ignition 4.8V-18V 1 $70.00
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