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THUNDER TIGER OUTBOARD MARINE ENGINE Manual

1. a total range of 8mm of adjustment This adjustment will vary from hull to hull and the optimum setting obtained through testing HIGHEST ATTITUDE LOWEST ATTITUDE 4 PLASTIC WASHERS HINGE PLATE N 4 PLASTIC WASHERS HINGE PLATE HIGHEST THRUST LINE Y l LOWEST THRUST LINE PROPELLER THRUST ANGLE ADJUSTMENT 0 THRUST ANGLE This adjustment is used to alter relationship of the thrust angle to the center line of your hull which affects both the speed and attitude in which your boat performs i e bow high bow low etc CARBURETOR ADJUSTMENT Your Thunder Tiger carburetor is specially designed for use with the high performance outboard marine engine It is able to automatically provide a proper air fuel mixture at all throttle ranges from idle to full speed The carburetor has been pre adjusted at the factory and should give excellent engine performance in most cases Large adjustments of the carburetor should not be required However different operating conditions such as your choice of fuel glow plug propeller and climate may make further adjustments necessary NEEDLE VALVE ADJUSTMNET This is used to adjust the high speed fuel mixture Optimum setting is described in the BREAK IN PROCEDURES MIXTURE METERING SCREW ADJUSTMENT This is used to obtain a smooth transition and stable idle 1 After
2. the needle valve has been set keep running at the highest speed for about 10 seconds then abruptly close the throttle to the lowest speed Run at idle for about 5 seconds Then quickly open the throttle 2 If the engine hesitates before picking up speed and there is plenty of smoke and un burned fuel coming out from the exhaust the mixture is too rich Screw in clockwise the mixture metering screw about 1 8 turn 3 On the other hand if it soeeds up before quitting the mixture is too lean Screw it out counter clockwise about 1 8 turn 4 If this is difficult to observe then allow the engine to idle slightly longer before opening the throttle Repeat procedure 1 patiently a few times to ensure the best running is obtained ENGINE CARE Always keep the outside of your engine clean Use clean fresh fuel and keep your fuel can pump and fueling system free from dirt particles Install a fresh fuel filter between the fuel tank and carburetor and between your fuel pump and filling line to prevent any potential of dirt entering your engine Model fuel contains alcohol which is hydroscopic meaning that it attracts moisture from the atmosphere This can cause corrosion to the internal engine parts After each running session run all the fuel out from inside the engine and disconnect the fuel line from the carburetor Put 4 or 5 drops of after run oil Marvel Mystery Oil Pacer etc into the carburetor and turn the engine over by h
3. ENGINE INSTALLATION Locate your engine mount on the transom so that the lowest part of the sponsons for tunnel hull the riding surface for hydro hull or the shallow V hull bottom are approximate to the propeller thrust line Be sure to follow the specific engine mounting instruction contained in your boat kit BREAK IN PROCEDURES Because your Thunder Tiger engine has been precision made from quality materials and is an ABC type engine a prolonged break in period is not necessary However for long life and high performance proper break in is recommended 1 We strongly recommend a fuel containing 20 castor oil or castor synthetic blend with no more than 10 nitromethane to be used for break in We strongly discourage using fuel containing only synthetic lubricants during the initial break in period 2 Turn the needle valve clockwise until you begin to feel resistance This is the fully closed position Do not force the needle valve or your may damage your carburetor Now turn the needle valve counter clockwise about 2 2 1 2 turns This will be a good place to start Turning the needle valve clockwise is to close for learner mixture while counter clockwise is to open for richer mixture 3 Turn on your control system and shift the throttle stick to test and prime your engine until the fuel is draw into the carburetor It needs more choke for the first starting or when the engine is co
4. INGE PIN AA0420 31 C RING W WASHER SET PN0111 32 BACKPLATE BEARINGS PN0109 33 BEVEL GEAR BEARINGS PN0110 34 SPRING PIN PN0115 8 KOX Vo C c7 J w K Y gh ao N Manufactured by Thunder liger THUNDER TIGER CORP http www thundertiger com JA0248 V2 THUNDER TIGER OUTBOARD MARINE ENGINE OPERATING INSTRUCTIONS 9567 9568 SHOWN PRO 21M OB IMPORTANT Be certain to completely read all of the instructions supplied with your engine and pay close attention to the SAFETY INSTRUCTIONS AND WARNINGS INTRODUCTION Congratulations on your purchase of a Thunder Tiger outboard marine engine The engine has been designed for radio controlled model boats to combine high performance with easy handling and maintenance using modern CAD computer technology manufacturing techniques Major engine components are machined from the highest quality materials using state of the art CNC manufacturing techniques resulting in consistently high perfor mance and reliability The engine is equipped with Schnuerle porting ABC type piston and cylinder five ball bearings and roller bearing built in muffler reduction gear system adjustable thrust line system high performance propeller and automatic mixture control carburetor SPECIAL ATTENTION When you rotate t
5. and several times to protect the engine bearings and inter nal parts from corrosion PARTS LIST CARBURETOR PARTS DESCRIPTION 9249 PARTS DESCRIPTION 9249 A CARBURETOR BODY PN1073 G BOLT amp FUEL INLET PN1007 B CARB ROTOR ASSY PN1129 H RATCHET SPRING AA1025B C NEEDLE VALVE ONLY PN1018 O RING SET PN1022 D SPRAY BAR ASSEMBLY PN1019 J MIXTURE METERING PN1074 E NEEDLE VALVE ASSY PN1020 SCREW SET F THROTTLE LEVER PN1006 K THROTTLE ROTOR SET PN1130 PRO 21M OB 9249 The use of after run oil is also important during periods of prolonged stor age We suggest removing the engine from the model and liberally apply ing oil into the carburetor and glow plug hole wrap your engine in a soft cloth and store in a plastic bag Do not dismantle your engine unnecessarily as this may upset precision fits such as piston cylinder and crank pin connecting rod assembly If it is necessary to clean your engine complete remove only the carb do not disassemble muffler and cylinder head Flush the entire engine with fresh fuel and reassemble Apply after run oil to the engine and store or re install into the model Do not disassemble your engine further than described above or your warranty may be voided SERVICE Thank you for purchasing the Thunder Tiger outboard Marine Engine Thunder Tiger strives to bring you the highest quality and services We race and test our products around
6. e possibility of fuel or air leakage
7. flow through your engine to extend engine life and maintain optimum reliability Do not use fuel containing less 20 lubricant CAUTION 1 Methanol and nitromethane are poisonous and highly flammable Keep out of reach from small children and keep away from heat and open flame GLOW PLUG The type and quality of glow plug used in your engine will have a major impact on overall performance and reliability All of the Thunder Tiger engines operate best with a R C long type plug such as Redline glow plugs K amp B or O S No 8 Glow plugs while of excellent quality with a colder heat range may cause idle or throttle transition problems in smaller engines Select the best glow plug by practical tests PROPELLER Your engine is equipped with a high performance stainless steel propeller that provides satisfactory performance over a wide rang of different hulls The optimum propeller for your specific hull can only be determined after practical running tests A general rule of thumb to follow is that the lower you run your prop in the water the smaller the diameter of the prop needs to be in order to keep the engine R P M in the ideal powerband for best performance Determining the correct prop for your particular boat requires testing and patience If your boat does not run well there are some simple trouble shooting tips described below Keep in mind that factors such as hull length weight ride height prop depth and engine R P M comb
8. he flywheel by hand your may find that it becomes rough or notchy as the piston approaches TDC Top Dead Center This is not a defect or manufacturing fault indeed it is normal for an engine of ABC type construction When the engine runs the cylinder actually expands as it heats up The cylinder has been precision machined so that at optimum operating temperature the cylinder walls are perfectly aligned with the piston As the engine cools after a run you will notice that the tightness will actually return This is normal and typical of an ABC type engine SPECIFICATION REF NO 9567 9568 DISPLACEMENT 3 46cc 0 211cu in BORE 16 6mm 0 654in STROKE 16 0mm 0 630in 104 PRACTICAL R P M RANGE 3 000 38 000 PROP OUTPUT 2 1 30 000 BHP RPM WEIGHT 7209 35 370z FUEL A good quality commercially available fuel containing 25 lubricant and 75 methanol is recommended for break in run in and general usage We also recommend castor oil or a castor synthetic blend only for use as a lubricant Fuel containing 5 15 nitromethane and 20 lubricant is for use when more power is required Most fuels containing synthetic lubricants only are much less tolerant of a lean run compared to fuel that contains castor oil If availability or local con ditions force you to use a fuel that contains only synthetic lubricant we sug gest that you keep your needle valve set to a slightly richer setting allowing more lubricant to
9. ine to affect your choice of propellers CAUTION 1 It is extremely important to check the balanced of you propeller before you attempt to run the engine with your boat An unbal anced propeller can cause substantial damage to the engine A Thunder Tiger propeller balancer is easy to use and is available at your hobby dealer CAUTION 2 After balancing your propeller make certain to balance and sharpen the prop to obtain the best performance PROPELLER TROUBLE SHOOTING CAUSE CORRECTIVE ACTION 1 The prop has insufficient pitch Try a prop with higher pitch PROBLEM The engine is turning high R P M but the boat lacks speed 2 The prop produces insufficient Increase prop diameter and reduce thrust pitch The engine is over loaded the boat runs slowly 1 The pitch or the diameter of Select next lower pitch and or the prop is too large smaller diameter prop The boat rolls to one 1 The prop diameter is to large Select a smaller diameter prop with side while running higher pitch FUEL TANK INSTALLATION The fuel tank should be located as close to the engine as possible Ideally the centerline of the tank should be level with the carburetor spray bar needle valve assembly Keep in mind that tank location can have a large impact on engine performance and CG Center of Gravity on your boat Make sure that your entire fuel tank system is properly sealed and well constructed to eliminate th
10. ld Turn the flywheel by using an electric starter to start the engine with the throttle slightly opened approximately 1 5 2 0m m The engine should fire after one or two tries CAUTION Never operate your engine at high R P M without a load that is with the boat out of the water Otherwise your engine may be damaged in a few seconds due to the lack of load and over heating from lack of cooling water 4 All adjustments during break in will be made to the high speed needle valve only At this point the engine is running very rich If your engine does not accelerate smoothly when the throttle is opened from any setting above idle or run unevenly when idling please adjust the mixture metering screw as described in the CARBURETOR ADJUSTMENT paragraph after break in Put the boat in the water and readjust the throttle immediately so that the S engine does not stop Allow the engine to run at full throttle and consume the entire tank of fuel at this needle setting Take care not to let your boat stop far away from shore 6 After the first tank full re fill the tank Then close the needle valve 1 8 turn and restart During the second tank of fuel run the engine at alternate throttle settings i e 1 2 throttle for 30 seconds then full throttle for 30 seconds etc for about half the tank Advance the throttle to full and slowly lean the needle setting about 1 8 turn at a time until the highest speed is obtained 7 At
11. the world to bring you state of the art items Thunder Tiger guarantees you virtually trouble free use from our R C products Thunder Tiger products are sold worldwide through our authorized distributors which are directly and rapidly supported by Thunder Tiger For the latest product information and best technical sup port please feel free to either contact your local hobby shop Thunder Tiger authorized distributor or visit us at www thundertiger com PARTS LIST ENGINE DESCRIPTION 9567 9568 1 FLYWEEL NUT AA0424 2 STEERING ARM SET PN0098 3 FLYWHEEL PN0099 4 CRANKSHAFT AA0263 5 CRANKCASE AN0318 6 BACKPLATE ASSEMBLY PN0100 7 CONNECTING ROD AN0349 8 WRIST PIN ASSEMBLY AA0350 9 CIRCLIP AA0351 10 CYLINDER amp PISTON AN0549 11 WATER COOLED HEAD ASSY PN0093 12 HEAD GASKET AA0355 13 CARB RETAINING BOLT AN0356 14 0 RING SET PNO101 15 CARBURETOR ASSEMBLY 9249 16 CRANKCASE BEARINGS PNO166 17 ENGINE SCREW SET PN0103 L 29 Y DESCRIPTION 9567 9568 18 HINGE PLATE ASSEMBLY PN0104 19 GEAR SET PN0112 PN0113 20 LOWER UNIT SET AN0401 21 LOWER UNIT GASKET AA0432 22 LOWER UNIT SCREW SET PN0O106 23 FLEX SHAFT AA0417 24 FLEX SHAFT GUIDE AA0418 25 PROP SHAFT ASSEMBLY PN0107 26 PROPELLER AJ0080 27 PROP NUT AMM4Z 28 WATER INTAKE AA0422 29 ADJUSTMENT WASHERS PN0108 30 H
12. this point richen the needle setting about 1 8 turn counter clockwise and run a third tank of fuel at this needle setting After 4 5 runs your engine will be completely broken in and ready for consistent performance LUBRICATING It is impossible to prevent dirt from entering the lower unit of your outboard give the volume of water that flow through and by the unit during operation Therefore proper lubrication is required after each and every running session to keep your outboard running properly This is easy work yet very critical to receiving a long service life from your engine Unscrew the propel ler shaft assembly and remove it along with the flexible shaft Check and clean the flexible shaft using a soft cloth then inject a liberal amount of grease into the gearbox through the hole located on the right side of the lower unit as shown below Apply a light coating of grease to the flex shaft and reassemble the prop shaft assembly GREASE INLET PROPELLER ANGLE ADJUSTMENT To allow proper tuning for your particular hull your engine has the ability to adjust engine height by 8mm and adjust the propeller thrust within a range of 7 ENGINE HEIGHT ADJUSTMENT This adjustment alters the distance between the propeller thrust line and the waterline which affects the selection and the efficiency of the prop Your can change the quantity of plastic washers on the hinge pin as well as the direction of the hinge plate to obtain

THUNDER TIGER OUTBOARD MARINE ENGINE Manual

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