Acquisition of new two-stroke It's always an event for the owner of the boat, whether it's an experienced angler or a beginner who is learning the basics of aquatic technology. However, immediately after the purchase and the first start, the unit is not ready to give full power, because the internal parts take time to latch. Parsun 9.8.
Many owners make the mistake of relying on modern manufacturers to perform all the necessary procedures during the production phase, a dangerous misconception that can lead to piston group bullies and loss of warranty. break-in - is the creation of ideal working gaps between rubbing surfaces, and to miss this stage is categorically impossible.
In this article, we will discuss in detail all stages of preparation, mixing of fuel and engine operating modes to ensure that your parsoon It's been in service for years without major repairs, and technology compliance is not just a formality, it's a guarantee of the power plant's reliability in extreme conditions.
Preparation of the engine for the first start
The first step before any work is to carefully study the technical documentation that comes with the device. Even if you have already dealt with outboard motors, the instructions for a particular model are very important. Parsun 9.8 The packaging lubricant applied in the plant for preservation must be completely removed or burned during the initial start-up, but it is better to control this process visually.
Particular attention should be paid to the state of transporter Before you put the boat on the trench, you need to make sure that all the threaded joints are tightened with the right force, because the vibration during transportation could weaken them. Also check the level of oil in the gearbox, even if the manufacturer claims that it is filled - rechecking is never superfluous.
⚠️ Warning: Before starting, make sure that the screw is securely fixed with a locking washer and nut. The engine is prohibited without a screw or with a poorly secured propeller, as this can lead to the wiring of the screws and the failure of the lower unit.
To do a quality break-in, you'll need a suitable water tank, unless you plan to do the procedure right on the water. vent The water pump was below the water level, which will ensure normal cooling of the engine.
Fuel mixture preparation and system inspection
Two-stroke engines do not have a separate lubrication system for the crank-wheel mechanism, so oil is added directly to the gasoline. For the break-in period, the proportion of the mixture must be more oil-rich than for normal operation, usually this ratio is the ratio of the oil to the break-in period. 1:25 (per 1 liter of gasoline 40 ml of oil), although the exact figures are always indicated in the manual. 2T oils The TC-W3 label is a requirement.
Don't skimp on the ingredients of the mixture, as cheap oil can coke at high temperatures, which will lead to piston rings. Gasoline should be fresh, with the octane number recommended by the manufacturer, usually AI-92 or AI-95. Carefully shake the can before refueling to achieve uniformity of the emulsion.
Can synthetic oil be used?
Synthetic oils have excellent lubricating properties, but for the running of new engines, many mechanics recommend semi-synthetics or mineral oils of high quality, as they provide a softer grinding of parts.
After refueling, you need to check the ignition and fuel supply system. Open the fuel crane, press the manual pump pear primer several times before resistance appears, indicating that the carburetor is filled. Make sure that the fuel hoses do not have air traffic jams that can cause interruptions.
Engine operating modes during break-in
The process of running in is divided into several time stages, each with its own speed and load limitations, the first stage lasts about 10-15 minutes of idling or at a minimum speed, during which the primary distribution of the oil film over the cylinder mirror and bearings takes place.
The second stage, which lasts about 40 to 50 minutes, allows you to increase the load to 50 percent of the maximum power, which means you can move in gleaming mode, but you should not open the throttle completely.
The final phase takes the remaining time until approximately 5-10 liters of fuel mix are produced, and 70-80% short-term throttle opening is allowed, but long-term full-speed operation is still prohibited. Only after several fuel tanks have been developed can you switch to the standard proportion of the mixture. 1:50 and operate the motor in normal mode.
The main purpose of running is not to give maximum speed, but to ensure uniform finishing of all rubbing surfaces under moderate load.
Control of the cooling system and temperature conditions
During all break-in stages, you need to constantly monitor the cooling system. The jet of water coming out of the control hole should be stable and powerful. If you notice that the pressure has weakened or the water has stopped going, immediately shut down the engine to avoid overheating and jamming.
Overheating can occur not only because of a pump failure, but also because foreign objects enter the water intake or too small a dip in the lower unit. When running in a barrel, make sure that the motor does not create a whirlpool that sucks air with water.
| The break-in stage | Duration | Throttle mode | Proportion of mixture |
|---|---|---|---|
| First launch | 10-15 minutes | Idle move | 1:25 |
| Main stage | 40-50 min | Up to 50% capacity | 1:25 |
| Completion | Up to 10 liters. | Up to 80% capacity | 1:25 |
| Operation | Constantly. | 100% power | 1:50 |
The engine body temperature is also an important indicator: In normal operation, the bottom of the crankcase should be hot, but not burning. If you smell the wiring burning or see smoke coming out from under the casing, it is a malfunction signal.
Checking of knots and post-break-in maintenance
After you have developed the first tank or passed the initial stage in the watch, you need to carry out maintenance. The first thing to check the tightening of all bolt joints, especially the fastener of the lower unit to the leg and the carburetor to the engine, the vibration in the first hours of operation could weaken the thread.
Be sure to replace the oil in the gearbox, even if the manufacturer claims that it is filled for the entire life, during the break-in period, microparticles of metal from rubbing gears could get into the gears, and they must be removed. Also check the condition of the spark plug: its color should be brick, black plaque will indicate a rich mixture, and white – poor.
☑️ Post-roll-in TO
Don't forget to lubricate all the friction nodes according to the lubrication map. Parsun 9.8 It's important to use special water-resistant lubricants that are not washed out by water and can withstand high loads, and regular maintenance immediately after running will prolong the life of the machinery.
Typical errors and precautions
One of the most common mistakes is to try to go on a long journey at full speed immediately after purchase, which is guaranteed to overheat the piston group and possibly bully, and the motor must "disintegrate" gradually, at a calm pace.
Another mistake is using old fuel that has been in the canister for months, and the gasoline loses its properties, oxidizes and can cause detonation, which is detrimental to a two-stroke engine during laundry. Always use fresh fuel.
⚠️ Warning: Never leave the engine running at idle speeds for a long time without loading, unless this is provided by the heating instructions. Prolonged work on idle can lead to the formation of soak on candles and in the exhaust system.
Compliance with all operating rules and timely response to changes in the operation of the engine will avoid expensive repairs. Remember that the manufacturer's warranty is often canceled if you violate the rules of running, so take care of your equipment.
After each trip, especially in salt water, be sure to rinse the cooling system with fresh water by connecting the hose to the appropriate fitting or using an adapter.
Frequently Asked Questions (FAQ)
How long should the Parsun 9.8 engine run?
The full break-in cycle usually takes about 10 hours of engine operation or 2-3 fuel tanks to produce. The exact time can vary depending on the specific modification and recommendations in the manual.
Can I run the motor in a barrel of water?
Yes, this is a valid method, especially for the initial stage, the main condition is that the depth of the barrel must be sufficient to completely immerse the water intake, and the water must not heat up too much, otherwise the pump may overheat.
Which oil is best used for running?
It is recommended to use special mineral or semi-synthetic oils for two-stroke outboard motors labeled TC-W3. Synthetic oils may be too slippery for initial grinding of parts.
What to do if the engine smokes during the break-in?
Heavy smoke during the break-in is normal, as it burns excess oil in the mixture. However, if the smoke turns black and the smell of burning appears, you should check the correct proportions of the mixture and the carburetor.