background image

from the engine as possible.
● The throttle and choke pushrods should be non-metallic.
● 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. Due to
the carburetor being 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 engine 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.
● 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.
● This engine was designed for use in a model aircraft. Do not attempt to use it for any
other purpose.
● Always install an ignition system kill switch on the aircraft used.
● 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 12”
[305mm] away from the engine.
● Caution: Running the engine with a lean gas mixture will cause the engine to overheat
and burn the electrode of the spark plug. Pay close attention to the High-speed Needle
adjustment. Running the engine with the proper gas mixture will cause the spark plugs
to appear yellow at the ignition point.
● For optimum performance please use fresh or recently purchased 93 octane gasoline
(87 octane gasoline will suffice) with a 30:1 gas/oil mixture.

GAS/OIL Mixing Chart

1 Gallon Gasoline (128 fl oz/3.78L) / 2-Cycle Oil
(4.26fl oz/125.68ml) = 30:1 ratio
● Excessive running of the engine at idle speed can result in a seriously carbonized
spark plug.
● Keep the surface of the engine clean to ensure proper heat dissipation. Ensure proper
cooling/ventilation around the cylinder with adequate air exhaust.
● To avoid permanent damage to the electronic ignition system, never rotate the propeller
on your RCGF engine with the electronic ignition system switched on and the plug not
installed in the plug cap.

Installation Instructions

Prepare the engine for installation

Before beginning installation it’s a good idea to plan location of the various components
of the engine. Many of the following steps may need to be completed in a different order

Содержание 70CC-Twin

Страница 1: ...ion system Power supply 4 8 8 4V Maximum Output 7 4HP 8600rpm Requires Gasoline 2 cycle oil ignition battery propeller speed rang 1500 8600rpm Gasoline Version Pre mixed Fuel 25 40 Gasoline 1 Recommen...

Страница 2: ...quivalent dle Speed 1600 rpm min Static Thrust 34 2 lb 15 5 kg 328 ft 100 m altitude 30 9 lb 14kg 5 900 ft 1800 m altitude SPARE PARTS LIST 1 1pc RCGF 70cc twin cylinder Gas Engine 2 2pc RCGF Spark Pl...

Страница 3: ...t 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 Keep foreign objects away from the prope...

Страница 4: ...inside the engine compartment Doing so could cause radio interference Install all electronic radio devices at least 12 305mm away from the engine Caution Running the engine with a lean gas mixture wi...

Страница 5: ...n or replace any damaged or missing parts before proceeding 2 Install the silicone wire cover over the pick up lead coming from the engine cut the excess silicon wire cover and connect the lead to the...

Страница 6: ...ubing to secure this connection 5 Install the ignition kill switch and charge jack on the aircraft so that it is easily accessible from the outside of the plane 6 Install the ignition module securely...

Страница 7: ...the included standoffs Use threadlocking compound such as Threadlocker on the screws where they thread into the blind nuts 3 Install the fuel tank in the airframe Use only gasoline approved fuel tank...

Страница 8: ...operate the throttle 6 Connect the ignition wire from ignition module to the spark plug 7 Install the muffler onto the engine Be sure to use threadlocker and that the ignition wire does not contact t...

Страница 9: ......

Страница 10: ...om the aircraft Use the included propeller washer to mark the centering hole on the propeller 2 Once the location is established use a drill press with a 5 2055 5 21mm drill bit as a pilot hole Once t...

Страница 11: ...Locator to center and start the hole 6 Remove the propeller from the engine and drill the outer hole on the drill press using a 110 2 81mm drill bit as a pilot hole Next use a 5mm drill bit to finish...

Страница 12: ...peller using the same technique as step 6 9 Mount the propeller to the engine using the 5x35mm SHCS with 5mm lock washers and flat washers Be sure to use threadlocker Adjustment of the Engine Each RCG...

Страница 13: ...eedle is as follows turn the needle to the fully stop closed position and then open the needle 2 turns It is recommended that the High speed needle be adjusted by the use of a tachometer to obtain max...

Страница 14: ...during break in it s recommended that you run the engine without the cowling Also for safety reasons do not adjust the carburetor while the engine is running There are two recommended ways to start th...

Страница 15: ...the carburetor and open the throttle slightly from the idle position 4 Use your electric starter to turn the engine over for several seconds until a popping sound is heard This indicates that the engi...

Страница 16: ...pecially when checking for spark in this manner Optional Digital Tachometer not included An optional Digital Tachometer is available that can be directly connected to the ignition and display the RPM...

Страница 17: ...RCGF 8 4 V Ignition modules use the Digital Tachometer...

Страница 18: ...ailure to do so may result in miss calibration of the needle adjustments In order to do this it is necessary to remove the Phillips head screw which secures the carburetor filter cover and the carbure...

Страница 19: ......

Страница 20: ...ice center on local Warranty Information The RCGF 70cc TWINs has a two year limited warranty through RCGF service center beginning at the date of purchase Please retain your receipt as your proof of p...

Страница 21: ......

Страница 22: ......

Отзывы: