Horizon Hobby Evolution 152GX User Manual Download Page 6

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Control Jet System

Your engine is equipped with a unique system enabling improved acceleration from idle to high speed. This system allows the mixture to be

controlled while the throttle valve is opening. It will lean the mixture at low rpm and at idle. Conversely the mixture will become richer as the

throttle is opening. This system provides better acceleration to high speed and maintains a stable idle.

This system was developed for the Evolution 152cc engine. It is recommended that you do not change the mixture control leverage.

Idle

High Throttle

Summary of Contents for Evolution 152GX

Page 1: ...2008 Manufactured exclusively for Horizon Hobby Inc www evolutionengines com 877 504 2333 13207 Printed 10 08...

Page 2: ...Evolution Engines 152GX USER GUIDE...

Page 3: ...you have the help of an experiencedmodelerduringthefirstfewflights Yourlocalhobbystoreorflyingclubcanput youintouchwithanexperiencedpilotinyourarea Table of Contents Introduction 3 Contents Included 5...

Page 4: ...l enable Horizon to better answer your questions and service you in the event that you may need any assistance For questions or assistance please direct your email to productsupport horizonhobby com o...

Page 5: ...40 ball link Make sure that the linkage is free to operate from low throttle to high throttle and confirm that the low throttle setting on the transmitter closes the carburetor butterfly to the low i...

Page 6: ...the throttle valve is opening It will lean the mixture at low rpm and at idle Conversely the mixture will become richer as the throttle is opening This system provides better acceleration to high spee...

Page 7: ...ervosandhigh torqueservos consumemorecurrentthantheignitionsystem scircuitryisdesignedtoprovide Iftheservoyou veconnectedquiversorwon tworkatall itscurrentdrawisprobably toohigh Ignition System Warnin...

Page 8: ...r about 2 seconds If LED turns off you can fly otherwise battery is low FIRST STEP Screw pickup on engine Attach the plastic protection to the high voltage cable Connect boot to plug Mount ground term...

Page 9: ...filling the fuel line to the carburetor then switch the ignition to the ON position Flip the propeller smartly until the engine fires With the choke in the closed position the engine will fire then q...

Page 10: ...rpm range Stop the engine and recheck the fuel feed the fuel line must not be pinched or broken Restart the engine and test acceleration again If the problem persists adjust the carburetor Open the l...

Page 11: ...order of the components Check the vacuum feed line Mechanical Faults If the engine cannot be turned over easily The piston in the cylinder may be seized loosen and unscrew the cylinder bolts Carefull...

Page 12: ...ication Standard Unleaded 91 octane Oil with gasoline in mixture 1 30 Oil with gasoline in mixture 1 40 Evolution Engines Auto Choke Ignition System The spark ignition included with your Evolution gas...

Page 13: ...bolt or suitable place on the engine and push the spark plug cap firmly on the spark plug Install the spiral wrap spark plug lead covering to protect the plug lead steel braiding from any possible cha...

Page 14: ...1 Using the throttle stick close the choke until it closes completely Wait until the LEDblinksonce indicatingtheignitionhas memorizedthe closedchoke position 2 Using the throttle stick open the choke...

Page 15: ...15 152GX Parts Diagram...

Page 16: ...haft Assembly EVO30010308 Carburetor Flange Screws Set EVO30013309 Spark Plug EVO30941405 Ignition Sensor Fixing Screws EVO3010i1101 Drive Washer EVO30101102 Drive Washer Key EVO30011103 Propeller Nut...