Manual - Great Hobbies

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THE TRX 3.3 RACING ENGINETraxxas strongly discourageschanging or modifying anypart of the TRX 3.3 RacingEngine. Old tech tips andtricks that may have boostedthe power of other enginescould seriously diminish theperformance of theTRX 3.3 Racing Engine.There’s more advancedthinking, development andtesting in the stock partsof your TRX 3.3 RacingEngine than in manyaftermarket manufacturer’sperformance parts. The TRX3.3 Racing Engine is alreadythe most powerful enginein its class and may notbenefit from average, lowtech,aftermarket bolt onperformance items.14 • JATO 3.3INTRODUCTIONThe TRX ® 3.3 Racing Engine is the next generation of TRX nitropower. The larger displacement and advanced porting generateclass-leading horsepower while still maintaining the TRX RacingEngine characteristics of broad, linear power delivery and ease oftuning. Focused engineering and rigorous testing have yieldedunprecedented power and uncompromising performance that turnsready-to-run into Ready-To-Race®.The TRX 3.3 Racing Engine takes a total-system approach. Eachpart of the engine, from the air filter to the exhaust tip, is carefullyengineered to work in harmony with other engine components. Eachpart complements the next, to extract maximum power. The TRX 3.3Racing Engine is designed to be tolerant of variations in tuning, andto run successfully through a wide range of variable atmosphericconditions such as changes in temperature, humidity, and altitude.In order to get the longest engine life and keep the TRX 3.3 RacingEngine in top running condition, it is very important to performregular routine maintenance. The number one cause of prematureengine wear and failure is lack of care and maintenance!BREAK-INThe TRX 3.3 Racing Engine is manufactured to exacting tolerancesand requires a specially-designed break-in procedure to accomplishthe final precision fitting of the internal engine components. It is veryimportant that you follow the new break-in procedure as closely aspossible to achieve the best performance and longest life from yourTRX 3.3 Racing Engine. Engine break-in will take between one andtwo hours. Old style break-in procedures, such as idling the engine onthe bench for several tanks of fuel or simply running the engine witha very rich fuel mixture for the first 4 tanks of fuel, will not achieve thebest results. Follow the easy steps in this manual.AIR FILTER MAINTENANCEDirt is the worst enemy to your engine. A clean air filter is absolutelycritical for long engine life. Due to the high performance nature ofthe TRX 3.3 engine, a tremendous amount of vacuum is created tomove a large volume of high velocity air through the carburetor. Thismodel is equipped with a two-stage high performance air filter whichrequires that the pre-filter stage be cleaned and oiled every hour ofoperation, and the primary filter be cleaned and oiled every 3-4 hours.An extra pre-lubed air filter set has been provided with this model toencourage you to maintain the engine’s air filter.AFTER-RUN MAINTENANCEPerform after-run maintenance on the engine to prevent corrosionfrom building up on the internal engine components. The fuelnaturally attracts moisture and corrosion can build up very quicklyinside the engine if it is not prevented.A few minutes spent before and after each time you run your modelwill allow you to enjoy it for a long time to come. Read on for moreexciting details about your new engine.
THE TRX 3.3 RACING ENGINETRX 3.3 RACING ENGINE ILLUSTRATEDAir FilterHousingIdle SpeedScrewHead ProtectorCylinder headEZ-Start Drive UnitJato’s fuel tank is equippedwith a built-in sinteredbronze fuel filter.High-SpeedNeedleFuel IntakeAir IntakeEZ-Start MotorLow-Speed NeedleCrankcaseCarburetorEngine MountFlywheelClutch BellCrankshaftThrottle ArmFuel LineEngineShut-offClampGlow Plug WireEZ-Start PlugGround WirePositive WireNegative WireEZ-StartControllerFuel TankPressure LineTunedPipeJATO 3.3 • 15
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Page 18 and 19: THE TRX 3.3 RACING ENGINEDANGER! Mo
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Page 22 and 23: THE TRX 3.3 RACING ENGINEUsing Othe
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Page 26 and 27: THE TRX 3.3 RACING ENGINEWhen tunin
Page 28 and 29: THE TRX 3.3 RACING ENGINE28 • JAT
Page 30 and 31: BASIC TUNING ADJUSTMENTSThe Jato 3.
Page 32 and 33: asic TUNING ADJUSTMENTSFor caster a
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Page 36: MAINTAINING AND STORING YOUR JATODe
Page 39 and 40: ADVANCED TUNING ADJUSTMENTSTRANSMIS
Page 41 and 42: TQ 2.4GHz ADVANCED TUNING GUIDEMode
Page 44: owners manualMODEL 5507091217 KC125

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