Toyan FS-B400AC Operating Manual
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Toyan FS-B400AC Operating Manual

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FS-B400AC
OPERATING MANUAL

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Summary of Contents for Toyan FS-B400AC

  • Page 1 FS-B400AC OPERATING MANUAL...
  • Page 2 Thank you for Choosing our products,Model FS-B400AC is one accessories kit with Precise Inline Twin Cylinder Four-stroke model engine,Before assemblying and operating your engine,please read the "safety instructions and warnings" section on pages 2-3 of this booklet and contents of accessories assemblyl,to strictly adhere to the advice contained therein >Also,Please study the entire contents of this instruction manual,so as to familiarize yourself with...
  • Page 3 CATALOGUE Safety Introduction and Warnings Product Introduction Product Assembly Steps 2 40 Wiring Diagram Precautions for Startup -- 42~44 Stable Operation and Adjustment 45~48 Regular Cleaning and Maintenance 49~50 Replacement of Operating Components Troubleshooting Methods for Engine Failure to Start Normally ------ Three Views ------...
  • Page 4 As a professional user, please make sure the engine runs safely and carefully. If at some future date, your FS-B400AC is acquired by another person, we would respectfully request that these instructions are also passed on to its new owner.
  • Page 5 This engine was designed for science experiments, model demonstrations, model car drives. Do not attempt to use it for any other purpose. Mount the engine in your model securely, following the manufacturers' recommendations, using appropriate screws and locknuts. Noise will happen when starts, please buy our matching muffler exhaust pipe or run away from the living environment, because the noise of the operation may irritate others.
  • Page 6 INTRODUCTION engine structure and components Intake duct Air intake installation seat Heat dissipation impeller cover Carburetor Heat dissipation impeller Carburetor mounting base Drive belt Cylinder head cover Timing wheel set housing cover plate Timing wheel set housing Large pulley Hot head installation port Right exhaust pipe Silencer Bracket base...
  • Page 7 INTRODUCTION engine structure and components Air deflector Rocker arm linkage Oil inlet nozzle Cylinder head Starting pulley Cylinder block Flywheel Left exhaust pipe Starting belt Oil discharge nozzle Starting wheel...
  • Page 8 TOYAN 拓陽精密科技 Distribution diagram of parts packaging M2×8 M3×6 M2.5×6 Φ2×12 Φ2×3 M2.5×8 M3×12 M2.5×5 M2.5×16 M3×8 M2.5×4 M3×8 M3×10 M2.5×8 32 34 M3×4 M4×16 M3×14 M2.5×5 M3×25 M4×14 M3×16 M3×6...
  • Page 9 TOYAN 拓陽精密科技 Distribution diagram of parts packaging...
  • Page 10 TOYAN 拓陽精密科技 Distribution diagram of parts packaging...
  • Page 11 TOYAN 拓陽精密科技 Distribution diagram of parts packaging...
  • Page 12 TOYAN 拓陽精密科技 Distribution diagram of parts packaging...
  • Page 13 TOYAN 拓陽精密科技 Distribution diagram of parts packaging M2×12...
  • Page 14 Product assembly steps...
  • Page 15 Product assembly steps The piston ring and cylinder liner shall be matched one by one, and the corresponding cylinder liner...
  • Page 16 Product assembly steps Attention! When disassembling, it is necessary to maintain the original pairing and not confuse it. During installation, the concave points at the arrow should also be kept corresponding.
  • Page 17 Product assembly steps Install the marked point on one side facing outward...
  • Page 18 Completion Product assembly steps diagram...
  • Page 19 Product assembly steps Completion diagram...
  • Page 20 Completion Product assembly steps diagram...
  • Page 21 Product assembly steps...
  • Page 22 Completion Product assembly steps diagram...
  • Page 23 Product assembly steps...
  • Page 24 Product assembly steps Completion diagram...
  • Page 25 Product assembly steps...
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  • Page 32 Product assembly steps 55 56...
  • Page 33 Product assembly steps 24 4...
  • Page 34 Product assembly steps Completion diagram...
  • Page 35 Product assembly steps When installing the belt, ensure that these three points are located as shown in the figure...
  • Page 36 Product assembly steps Completion diagram The prerequisite is adequate lubrication and cooling. The engine is run with very important oil needle settings: The excess oil not only provides rich lubrication, but also conducts heat from the surrounding metal and further assisted by the fuel nitro methane. the two-stroke model...
  • Page 37 Product assembly steps Completion diagram...
  • Page 38 Product assembly steps Completion diagram...
  • Page 39 Product assembly steps *Screw alignment positions that are not clearly shown refer to the corresponding letters...
  • Page 40 Product assembly steps...
  • Page 41 Product assembly steps...
  • Page 42 Product assembly steps...

  • Page 43: Wiring Diagram

    Wiring diagram Grounding Ignition Module 7.4V-2S...

  • Page 44: Install The Base

    1 Glow plug Model FS-B400AC requires 2 special glow plug for a four-stroke methanol engine , which is started by using 1.5 volt power supply. When the battery is disconnected, the heat retained in the chamber is still enough to heat the filament to keep the engine running. When top center compression position is reached, an "automatic"...
  • Page 45 2.Fuel Please use quality guaranteed methanol model engine fuel. Self - dispensing or counterfeit fuel will greatly reduce the performance and life span of the engine. Since it is a four-stroke engine, in order to ensure the normal operation of the engine, we require the only 20-25% nitro methane fuel can be used.

  • Page 46: Operation

    4.Start power supply The series FS-B400AC has been installed with a start motor, which can be started with one button. You only need to purchase standard 7.4v 25C lithium battery to realize quick start. Too low or too high voltage of starting battery will not guarantee the service life of the starting motor, do not use incorrect voltage starting battery 5.Environment for starting...

  • Page 47: Operation And Adjustment

    OPERATION AND ADJUSTMENT Note Four-stroke engines have stronger torque output than two-stroke engines, so the corresponding measures should be taken during operation In order to extend the service life and improve the performance, each engine has been tested at the factory. You need to do proper running-in and cleaning after receiving the engine. After continuous running in, the cylinder pressure will be gradually strengthened.
  • Page 48 engines in pre-heating into the cylinder through the crankcase on a longer trip. But The four-stroke engine, with its intake pipe and carburetor mounted high on the cylinder cap, means that the rich mixture of cooling fuel and air will flow directly into the cylinder directly.With the help of fan cooling, it can provide excellent operation experience for every enthusiasts.
  • Page 49 Since a four-stroke engine requires a lot of air intake, it is important to set throttle screws , the minimum throttle opening (idling setting) is about 1.5mm.,For the use of all kinds of engine enthusiasts. do not use a strong force to twist the throttle valve screws to adjust the size of the throttle door opening, but using valve screws to loose throttle, and then pull the throttle rocker arm to adjust.
  • Page 50 If the engine stops, cooling it for 15 seconds before restarting. Please hold down the start key within 5 seconds for each start, so as to protect the start motor life. Allow the engine to warm up for 30 seconds after starting so that the oil in the fuel can be fully lubricated to each working part.

  • Page 51: Care And Maintenance

    CARE AND MAINTENANCE The series of FS-B400AC is a very precise machine that you need to clean timely. Due to the impact of environment and the fuel when using, the engine parts have a certain amount of wear and corrosion. So, TOYAN will also provide you with long-term maintenance services. You can also...
  • Page 52 TOYAN , we will serve you wholeheartedly. Parts replacement, we will provide professional equipment and experienced team. Please do not disassemble the...
  • Page 53 BUG CHECKING If the engine fails to start, check the following carefully: Whether the battery voltage is normal, whether the power is full Whether the glow plug has failed Whether the fuel can reach the carburetor smoothly Do not start the engine when it is flooded. Remove the glow plug, close the oil needle and press the start button to drain the excess fuel.
  • Page 54 Three Views FS-B400 Specification ·Displacement:3.5cc×4 ·Bore: 16.68mm ·Stroke: 15.40mm ·Practical rpm: 4000-16000rpm ·Output: 2.00ps(30%Nitro) ·Weight: 1850g 154.5...
  • Page 55 Multi-view...

  • Page 56: Exploded View

    Exploded view...
  • Page 57 Our Commitmen Please contact a TOYAN dealer in your country or location. If you buy through the Internet, you can also get various parts and complete services through the Internet. Detailed information about each part can be obtained from the dealer In the process of use, we have a professional team to answer your technical or usage questions online for free.

  • Page 58: Part List

    PART LIST Name Name Name Hexagon socket head Glib Cylindrical pinΦ2×12 cap screw M3×12 Hexagon socket head Flat gasket Cylindrical pinΦ2×3 cap screw M3×8 Hexagon socket head Cylinder head gasket Flat washer cap screw M3×10 Hexagon socket head Oil nozzle adapter Elastic washer cap screw M3×14 Hexagon socket head...
  • Page 59 PART LIST Name Name Name Tensioning pressure plate Timing wheel set housing Rocker arm Cylinder head (left) Retaining ring Intake pipe installation plate Air intake installation seat Cylinder head (right) Pressure roller Impeller shaft Crankcase Starting wheel Cylinder block Large pulley Tensioning the idler shaft Flange bearing 8 ×...
  • Page 60 PART LIST Name Name Name Exhaust pipe (right) Silencer Crankcase gasket (lower) Crankcase gasket (upper) Cylinder block gasket Cylinder head cover gasket Oil seal Hexagon socket head cap screw M2×12 Self-tapping screws M2×12...

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