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EQUIPMENT NECESSARY FOR STARTING 

    THE ENGINE (NOT INCLUDED)

GXR28

ENGINE

ENGINE

R

THE  FINEST  RADIO  CONTROL  MODELS

INSTRUCTION MANUAL

1. Fuel for R/C models:
    Use glow fuel (available in all R/C hobby shops).  

2. Glow Plug:
    Use a high performance glow plug.  
    (GS Glow Plug from KYOSHO No.74902)

3. Booster Cord or One-touch Glow Plug Heater, and Batteries:
    Used for heating and electrifying the glow plug.

  
4. Plug Wrench:
    For removals when examining or exchanging the glow plug.  
    (Locking Jig & Wrench Set from KYOSHO No. 80312)

5. Fuel Filter:
    (Fuel Filter from KYOSHO No. 1876)

Warning

Never use gasoline, kerosene or 
alcohol instead of glow fuel!
This may cause fires!

A fuel bottle comes in very handy for quick and neat 
refillings of the tank.
(Quick-Fill Fuel Bottle 250cc / 500cc from  KYOSHO 
No. 96421 / 96422
)

Before beginning assembly, please read these instructions thoroughly.

No.74025

Glow Plug : Ignites the compressed air-fuel mixture.

Needle Valve : Adjusts the amount of fuel inflow for the mixture.

Recoil Starter : Starts the engine.

Idle Mixture Screw : Adjusts volume of air and fuel in mixture.

Throttle Lever : Adjusts amount of air-fuel mixture inflow and controls engine rpm.

Carburetor : Mixes air and fuel appropriately to control engine running.

Idle Adjustment Screw : Adjusts the carburetor opening when idling.

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ENGINE STARTING & BREAK-IN

Adjust the needle valve and air/fuel mixture adjustment 
screw to their standard position as follows:

Needle Valve

4 turns unscrewed 
from closed position.

Unscrew

Tighten

Air/Fuel Mixture Adjustment

Air/Fuel Mixture Adjustment Screw

Adjustments     ~     may slighty vary according to the type 
of glow plug and glow fuel.

Warning

As long as the engine is hot, avoid touch-
ing anything except the needle valve!  If 
disregarding this warning, you may cause 
burn injuries.

ENGINE MOUNTING

The position for mounting the engine depends largely on the 
model itself!  Follow the instruction manual supplied with the 
model to mount the engine properly.

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2

2

1

Tighten the screw so that 
the space to be 0.5mm 
like the drawing.

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3

2

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Содержание GXR28

Страница 1: ...ve Adjusts the amount of fuel inflow for the mixture Recoil Starter Starts the engine Idle Mixture Screw Adjusts volume of air and fuel in mixture Throttle Lever Adjusts amount of air fuel mixture inflow and controls engine rpm Carburetor Mixes air and fuel appropriately to control engine running Idle Adjustment Screw Adjusts the carburetor opening when idling 1 2 3 4 5 6 7 ENGINE STARTING BREAK I...

Страница 2: ...f fumes exiting the muffler are white and rpm increase slowly fuel is too abundant during the idle To lean the mixture rotate the air fuel mixture adjustment screw clockwise right each time 30 40ß In the opposite case if the engine stalls fumes are not visible and rpm increase slowly fuel is not abundant enough This time richen the mixture and rotate the screw anticlockwise left each time 30 40ß N...

Страница 3: ...incipal pour ajuster la proportion de carburant dans le carburateur Vis de ralenti pour r gler le ralenti du moteur Carburateur M lange l air et le carburant pour l acc l ration du moteur Lanceur pour d marrer le moteur Commande de carburateur Commande l ouverture du carburateur Vis de reprise pour ajuster le volume d air et de carburant dans le m lange 1 2 3 4 5 6 7 DEMARRAGE MOTEUR ET RODAGE Vis...

Страница 4: ... l oxydation l int rieur de votre moteur nous vous sugg rons fortement d arr ter d utiliser votre carburant actuel et de changer pour un m lange de carburant neuf bidon r cent jamais ouvert 8 SURCHAUFFE Ne jamais utiliser un moteur avec un m lange trop pauvre ou avec un pourcentage trop faible en huile Si un moteur surchauffe il peut atteindre une temp rature de 300 C et le maneton de vilebrequin ...

Страница 5: ... Cylinder Set Crankcase EXPLODED VIEW GXR28 Slide Valve Set Maintenance Kit Throttle Return Spring GS Glow Plug 74025 74025 01 74025 02 74023 12 74023 13 74023 14 74023 15 74025 04 74025 05 74025 06 74025 07 74025 08 74025 09 74025 10 74025 11 74025 12 74025 13 74025 14 74025 03 74023 16 74023 17 74023 20 74902 74025 04 74025 02 74025 13 74025 09 74025 13 74025 09 74025 12 74025 08 74025 01 74025 ...

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