Upgrade of the outboard motor Tohatsu 18bhp Remote control (DU) is not just a comfort boost, but a significant improvement in safety and ergonomics of the boat. Owners switching from the rumble control to the gas machine immediately note a decrease in fatigue on long voyages and the possibility of more accurate control of traction during trolling. Standard equipment often involves only a rumble, so the installation procedure is a popular type of tuning among fans of water tourism and fishing.
The process of integration of the DU system requires careful attention to technical details, since power-system The outboard motor is sensitive to installation errors, and the wrong connection can cause failure. switchboard or stop-stop sensorsIn this article we will discuss all stages of work, from the selection of components to the final configuration of cables that ensure reliable operation of the unit in any operating conditions on the water.
Before you start active actions, you need to make sure that all the necessary components and tools are available. Tohatsu M18 or its more modern modifications of the series MFS It has its own nuances related to the design of the crank and the location of the electric connectors. Proper preparation of the workplace and compliance with the sequence of operations ensure that your motor will last long and trouble-free.
Selection of components and preparation for installation
The first step is to acquire quality remote-controlThe market offers many options, but for Tohatsu 18bhp It is critical to choose devices that are compatible with the engine type (two-stroke or four-stroke) and the ignition system. Universal gas machines may not provide sufficient cable travel or have an incorrect length of the gas lever, which will lead to incomplete opening of the throttle.
Make sure you check the kit you're buying, and it has to include the control unit itself. steering-line (usually 3 meters long, but lengthened versions may be required), wire harnesses and fasteners. Tohatsu Often specific adapters or refinement of the gas thrust are required, since the geometry of the tiller mechanism differs from the standard shafts of gas machines.
- 🔧 Control unit gas-reverse with a mechanism of fixing the neutral position.
- 🔌 Wire harnesses with connectors corresponding to chips Tohatsu.
- 🛠️ A fastening set (bolts, nuts, washers) of stainless steel.
- 📏 Control cables with appropriate type tips.
Pay special attention to the length of the cables. If you plan to install on a cantilevered boat, the standard 3 meters may not be enough, in which case you need to order an extended version, remembering that increasing the length of the cable requires more accuracy in adjusting to avoid loss of course and jamming. battery sufficient capacity if the motor is not equipped with a full charging system or if the SD requires separate power supply for the electromagnetic valves.
Dismantling of the tiller traction and preparation of the engine
Before work begins, the engine must be securely fixed on the stand or transom of the boat. fuel-hose And remove the top of the engine to access the control unit. Tohatsu 18 The rample is attached to the gear shift shaft and throttle, and carefully unscrew the locking bolts, trying not to damage the threaded connections and plastic elements.
Once the hummel is removed, you will have a view of the gas and reverse control mechanisms. thrust and springOften, old lubricant accumulates in the joints or, conversely, dry friction occurs. It is recommended to clean the machinery of contaminants and apply fresh grease. lithium-lubricationwater-resistant.
⚠️ Warning: When dismantling the thrust, be extremely careful with the return springs of the reverse mechanism. Their sudden straightening can lead to injury or loss of small parts that are difficult to find in the boat's hold.
If the motor has a speed limiting system or a tilt sensor, make sure that their wires are not clamped by new equipment. Tohatsu The electric power connector can be closed with a plastic plug. Remove it by checking the contacts for no oxides. If the connector is missing, you will need a wiring insert, which requires a circuit of the electrical equipment of the particular model.
To install the bracket of the gas machine may require drilling additional holes in the lower unit or using regular mounting places. stainless-steel For fasteners to avoid corrosion in an aggressive salty environment, be sure to treat all holes after drilling with an anti-corrosion compound.
☑️ Preparation for installation
Installation of the control unit and laying of cables
Installing the SD unit itself on board the boat requires the optimal location, which should ensure convenient access by the operator and free movement of the control lever. Secure the unit on the prepared surface using a sealant to prevent moisture from entering the fasteners. Make sure that the cables do not have sharp fractures (bending radius at least 150 mm), as this will lead to their rapid destruction.
The cables from the control unit to the motor are one of the most important steps, and the cables must go as straight as possible, without tension in any steering position. Tohatsu 18bhp It's important to connect the cable tips to the levers on the lower unit, one cable is responsible for opening the throttle, the other is responsible for shifting gears (forward/neutral/back).
Use plastic clamps or special clips to fix the cables along the side, to prevent them from bolting and rubbing on sharp edges. sealer-sleevesThis will protect the cables from moisture and mechanical damage, and the wrong gasket can cause the engine to jam at full speed, which is a critical situation.
The nuances of the cables
When laying cables, avoid places where they may be touched by passengers' feet or exposed to direct sunlight without protection. Ultraviolet destroys the cable shell, and moisture inside the shirt can freeze in winter, blocking control.
After the cables are physically installed, you need to connect the electrical part, the power unit connects the wires to the motor connector, and if you use a universal kit, you may have to re-shape the contacts according to the color labeling of the wires. TohatsuRed wire is usually responsible for power or ignition signal, black for mass, and other colors for reverse and tachometer signals.
Adjustment of cables and adjustment of mechanisms
After installation, the fine-tuning phase begins. Tohatsu 18 It's done by rotating the nuts at the ends of the cable, and your goal is to get the throttle completely closed in the neutral position of the lever, and when the lever is fully operated, it opens 100%. An unopened valve will prevent the motor from developing full power, and the blocked gas on the idle will cause unstable operation.
The adjustment of the reverse cable is even more critical. The gearshift mechanism must be clearly fixed in three positions: forward, neutral and backward. This is determined by the characteristic click. If the switching occurs with a delay or requires excessive effort, you need to adjust the length of the cable. carburetor In the versions, gas and pump adjustment are often combined, which requires special care.
| Parameter | Normal value. | Permissible deviation | Effects of error |
|---|---|---|---|
| Gas cable stroke | Full lever stroke | ± 2 mm | Power failure or high turnover XX |
| Time of reversal activation | Clear click. | No backlash. |