Evolution-engines EVOE33GX Manuel d'utilisateur télécharger pdf (Page 14)

33GX Evolution Engines Specications

Disp Bore (mm) Stroke (mm) Weight (oz) Cylinder Propeller

33cc 37.5 29.5 48.8 Ringed 18 x 8 @ 8300 rpm

C D

70mm

54mm

E = height* F = length G= crankshaft thread size H = mufﬂer bolt spacing

Weight (oz)

Engine Only Mufﬂer Ignition Total

38.8 5.8 3.6 48.8

Dimensions

(mm)

A B C D E* F G H

50 60 31 73.3 104 121 3/8–24 36.5

* Height is from engine C/L to top of cylinder head.

Troubleshooting Guide

If the Engine Does Not Start

• Check and use a new spark plug if needed.

• Check fuel lines.

• Check for proper mechanical function by turning

the engine over.

• Check that the carburetor is correctly installed.

• Check that the vent line is attached and free

from any bends or blockages.

If the engine runs erratic

• Check for fuel systems problems. Are there any

holes in the fuel lines (inluding the clunk line

inside the fuel tank) or other possible sources

of air leaks, such as a loose fuel ﬁlter?

• Ensure the spark system is working

properly and the ignition battery is charged.

Mechanical Faults

If the engine cannot be turned over easily:

• The most likely cause is the engine is ooded

and by turning the engine over you are trying to

compress the fuel, not air.

1. Remove the spark plug.

2. Cover the cylinder head with a cloth or paper

towel and turn the propeller over to expel all

the excess fuel.

3. Replace the spark plug and try starting again.

• A possible cause is the piston in the cylinder is

seized: loosen and unscrew the cylinder head

bolts.

1. Carefully remove the cylinder liner.

2. Visually examine the piston and cylinder

to ﬁnd the possible cause of the engine’s

mechanical problem.

Mechanical repairs must ALWAYS be completed by

an authorized Horizon Hobby service center.

Maintenance

After each ﬂying session:

1. Fully drain the fuel from the tank.

2. Start the engine and run it until the fuel is

completely run out of the engine.

3. Try starting the engine three more times or until

it will no longer ﬁre. This gets all the fuel out of

the engine.

If you need additional help or have any questions,

please call Horizon’s Support Team. Horizon has

trained technicians who are qualiﬁed to answer

your engine questions.

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Evolution-engines EVOE33GX Manuel d'utilisateur Page 14

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