Information on repair and maintenance of motor outboard in electronic form
The first outboard motors appeared at the beginning of the 20th century and became a real revolution for water transport. Before their appearance, only oars, sails or steam engines were used for movement, requiring a large volume of fuel and complex maintenance.
In 1907, the American company Evinrude released the first mass-produced outboard motor with a gasoline engine, which could be easily installed on the stern of the boat. This device became the prototype of modern outboard motors.
History of outboard motors
In the USSR, the first serial motors were "Moscow", "Whirlwind" and "Privet", produced since the 1950s. In the following decades, domestic motors continued to develop, in parallel with foreign ones - Yamaha, Honda, Suzuki, Mercury, Tohatsu and Johnson, which became more powerful, quieter and more economical.
Now the market offers motors with two-stroke and four-stroke engines, with manual and electric start, electronic injection systems, cooling, remote control and even built-in generators. Outboard motors are used for fishing and recreation, as well as in the commercial and rescue sector, on small vessels, boats and dinghies.
Technical characteristics of outboard motors
Modern outboard motors are divided into two main types - outboard and stationary. Outboard - the most popular, they can be easily dismantled and installed on another boat. Stationary motors are integrated into the hull of the vessel and are used on large boats or yachts.
Main technical parameters:
- Engine type: two-stroke or four-stroke. Two-stroke are lighter and more powerful with the same volume, four-stroke are more economical and environmentally friendly.
- Engine capacity: from 30 to 1800 cm³. Depends on the purpose of the motor.
- Power: from 1 to 350 hp. Models up to 5 hp. suitable for fishing boats, more powerful ones - for motorboats.
- Cooling system: water cooling, usually with water intake from under the propeller.
- Start type: manual starter or electric start from the battery.
- Control: tiller or remote (from the console).
- Fuel: gasoline AI-92 or AI-95, for two-stroke - with oil.
- Gearbox: includes forward, neutral and reverse gears.
Popular brands:
- Japanese: Yamaha, Suzuki, Tohatsu
- American: Mercury, Johnson
- Chinese: HDX, Parsun, Sea-Pro
- Domestic: Vikhr, Neptune, Veterok, Ob-M.
Powerful models are equipped with trim functions (raising/lowering the motor), built-in oil temperature and pressure sensors, and an error warning system.
Outboard Motor Repair Manual
A PDF manual for operation, repair, and maintenance is available for almost every outboard motor. These documents are indispensable for both amateur owners and service station technicians of watercraft.
The manuals contain:
- Diagrams of the engine, gearbox, cooling system, ignition;
- Step-by-step instructions for troubleshooting;
- The procedure for disassembling and assembling the engine, instructions for replacing the piston group, spark plugs, impeller, membranes;
- Schedule of scheduled maintenance, including replacement of oil, filters, gaskets;
- Bolt tightening parameters, gaps, tolerances;
- Tables of error codes and troubleshooting methods (for models with ECU).
The manuals are available for both old models (for example, "Vikhr-30" or "Neptune-23") and modern ones. injection motors Yamaha F40, Mercury EFI and others.
Even with careful operation, boat motors are subject to breakdowns due to water, overloads and low-quality fuel. The manual allows you to eliminate the most common problems:
- Poor engine start - check spark plugs, carburetor, fuel system;
- Engine overheating - clogged impeller or water intake channel;
- Does not maintain idle speed - adjust the carburetor or injector;
- Vibration and noise - wear of bearings, propeller, gearbox;
- Loss of power while driving - dirty filters, carbon deposits, ignition malfunctions;
- Problems with the gearbox - adjust cables or repair the gearbox;
- Error signals on electronic models - ECU diagnostics, sensor check.
PDF-manual for repairing an outboard motor allows you to perform repairs even in field conditions, without a service center. This is especially important for fishermen, rescuers and watermen in remote areas.
