Proper breaking in of the outboard motor Khankai 3.6

Acquisition of new boat-engine It is always an event marking the beginning of the season of active fishing or waterwalks. Hangkai 3.6 After many years of service and not let down far from the shore, you must strictly follow the procedure of initial start and grinding parts. Many owners make the mistake of immediately starting to operate the equipment at full speed, which leads to overheating and bullying of the piston group.

Two-stroke design requires special attention to the preparation of the fuel mixture and temperature modes. Unlike four-stroke analogues, there is no separate lubrication system, so the quality of the break-in directly affects the resource. crankshaft Ignoring primary-use rules can reduce engine life by several times.

In this article, we will discuss in detail all stages of preparation, fuel mixing and engine operation during critical first hours of operation. hankai And the right way to do that is to be confident in the water.

⚠️ Attention: It is strictly forbidden to start the engine without water, even for a few seconds. Dry work instantly destroys the seals and causes deformation of the impeller pump.

Preparation of fuel mixture for two-stroke engine

The first and most important step is to make the right fuel. Hangkai They do not have a crankcase with oil, so the lubrication is carried out with gasoline. For the break-in period, you need to use mineral or semi-synthetic oil, specifically for two-stroke engines with air or water cooling. 1:25 (40 ml of oil per 1 liter of gasoline) for the first tanks, even if the instructions later say 1:50.

Using pure gasoline or misdosing oil will lead to catastrophic consequences: if there is a lack of lubrication, overheating and bullying, and if there is an excess, soak on the candle and loss of power. Gasoline should be used fresh, branded AI-92, as it has the optimal octane number for engines and is less prone to forming resinous deposits during storage.

The mixing process requires carefulness, you can't pour oil and gasoline directly into the engine tank, hoping that they will mix when you talk on the wave, and this will lead to the engine running on pure gasoline in the first minutes, which is unacceptable for the engine to use. piston-group.

• 🛢️ Take a clean canister and pour the required amount of gasoline into it.
• ⚙️ Add a measured amount of oil for two-stroke engines.
• 🔄 Shake the canister thoroughly for 30-60 seconds before obtaining a homogeneous emulsion.
• ⛽ Pour the finished mixture into the engine fuel tank.

Proportion is the basis of your motor's survival. Don't skimp on oil, buy products from well-known brands, such as: Castrol, Motul Cheap alternatives can contain additives that, when burned, form a solid plaque that clogs the exhaust windows.

⚠️ Attention: The finished fuel mixture cannot be stored for longer than 2-3 weeks, it loses its properties, it delaminates and can coke the carburetor, cook just as much as you need for one or two fishing trips.

Initial start-up and system inspection

Before you press the start button, you need to perform a number of checks: make sure that all bolt connections are tightened, especially the fastening of the lower unit to the transom and fuel hoses; Vibration when running a new engine can weaken the parts that are not fully twisted; Check the level of oil in the gearbox, if it is provided by the manufacturer (usually there is already flooded, but visual control will not interfere).

Starting a cold engine requires a closed air valve. Hangkai 3.6 There's a suction lever. Put it in the "Closed" or "Start" position. After 3-5 jerks of the starter cord (or swipe with an electric starter), the engine must grab it. Once the engine starts, immediately open the valve, otherwise spark-plate It'll pour fuel in no time.

Immediately after launch, notice the stream of water coming from the control hole, it must be confident and intermittent (pulsating), which indicates the impeller pump, the lack of water or a weak stream indicates clogging or failure of the pump, in which case the operation is immediately stopped.

Let the engine run at idle speeds for about 5-10 minutes. Don't touch the gas handle at that time. Listen to the sound of the work: it should be smooth, without any foreign knocks or screeching. If you hear a metal knock or the engine stalls when you try to add gas, you may need to adjust the carburetor, but this is rare on a new engine.

break-in modes

The break-in period itself is usually about 10 hours of operation or production of 3-5 full tanks of the fuel mixture, during which the friction surfaces: piston rings to the cylinder, rod bearings to the crankshaft are used, the main rule is to avoid long work at constant speeds.

The first hours (about 1-2 tanks) the engine should operate in a gentle mode. The turnover should not exceed 50% of the maximum. This means that you should not open the throttle more than half. The movement should be uniform, without sharp jerks and full "gas to the floor".

• 🚤 First 2 hours: work at revs no more than 2500-3000 rpm (approximately 30-40% of power).
• ⏱️ Every 20-30 minutes, change the mode of operation: add a little gas, then reduce.
• 🛑 Avoid long work at idle, this leads to the formation of soot.
• 🌊 Do not allow cavitation (air capture by a screw), abruptly changing direction or lifting the motor.

After the second tank is developed, you can gradually increase the load. By the fifth hour of operation, a short-term increase in speeds of up to 75% is allowed, but only for a few minutes. two-stroke Hangai 3.6 should be obtained only after full production of 10 hours of work or 5 tanks of the mixture.

Table of breaking in modes by motor clock

For ease of control of the process of grinding parts, it is recommended to keep a simple journal or focus on the time intervals of the engine. Below is a table that will help you not to lose your mode and not overload the unit ahead of time.

Stage (working hours)	Throttle mode	Recommended action	Limitations
0 - 2 hours	40% open	Uniform movement, system check	Full gas banned
2 - 5 hours	60% open	RPM variation, short accelerations	Don't keep up with the speed.
5:10 hours	80% open	Active exploitation, fishing	Short term to 100%
10+ hours	100%	Full exploitation	Temperature monitoring

Compliance with these intervals allows the piston rings to sit properly in their grooves and acquire the necessary shape to ensure compression. If you ignore this schedule and immediately give full gas, the rings can overheat and lose elasticity, which will lead to a drop in power in the future.

Temperature and cooling control

Two-stroke engines Hangkai During break-in, the temperature inside the cylinder may be higher than normal due to increased friction of new parts, the water cooling system must be constantly monitored, the jet of the "control" should be visible whenever the engine is above idle speed.

If you notice that the water stream has become weaker or has disappeared, or if a thick white steam has gone out of the exhaust pipe (more intense than usual), immediately release the gas and turn off the engine. Let it cool naturally. Trying to continue moving can lead to a jamming of the piston.

Also worth paying attention to the temperature of the body of the lower unit, after 15-20 minutes of operation, it should be warm, but not burning hot. If the metal is hot to a state where you can not touch your hand, this is a signal of malfunction of the pump or thermostat (if it is designed in this modification).

What to do when you overheat?

If the engine overheats, don't try to open the lid or pour cold water right away. Let it cool for 20-30 minutes. Check the water intake hole for algae or debris. Clean the system if there is a suspected blockage.

Typical errors in the break-in of Hankai 3.6

Analysis of service centers shows that most problems with engines hankai It's because of errors in the first hours of operation, and owners often believe that modern technology doesn't require "warm-ups," and that's a fatal misconception.

One of the biggest mistakes is using old or mis-stored gasoline, and expired fuel loses its octane number and forms resins that clog carburetor jelly jelly before the end of the break-in, and it's common to ignore bolt lifts after the first hours of operation.

• 🚫 Working at full gas in the first 5 hours is a guarantee of cylinder bullying.
• 🚫 Using oil for four-stroke engines or working out - leads to soot.
• 🚫 Long-term work "idle" on the prick without load - pollutes candles and silencer.
• 🚫 Forgetfulness when pumping fuel with a pear before starting - the carburetor is dry, the engine will not start.

Another common mistake is transportation, and after fishing, you have to work the engine out on idlers to burn up the fuel in the carburetor, or shut off the fuel crane, and the gasoline left in the float chamber evaporates, leaving a solid sludge that is difficult to remove.

⚠️ Attention: Never leave the fuel faucet open when the engine is not running and stored indoors, which is fire-prone and causes the carburetor to overflow with gasoline.

Completion of the break-in and first TO

When you've worked out 5 tanks of the mixture or winded 10 hours, you can think of the running process as complete, but that doesn't mean you can forget about the engine. On the contrary, after laundry, you have to do the first maintenance, during which time all the threaded connections could weaken due to vibration.

First of all, check the puffing of candles, bolts of the fastening of the lower unit, the rompel and the lower unit to the transom. Check the state of the spark plug. Its color should be brick-brown. Black coating indicates a rich mixture (a lot of oil), white - poor (little oil or overheating).

It is also recommended to replace the oil in the gearbox, even if the manufacturer claims that it is flooded forever. The first break-in in the gearbox could form the products of the grinding gears, and changing the oil to fresh will prolong the life of the gearshift mechanism.

Now yours. Hangkai 3.6 You can use it, and if you follow these simple rules, you can enjoy fishing and water trips without any sudden breakdowns or expensive repairs, and remember that the motor loves caress, clean fuel and attention.

Can synthetic oil be used for running?

It is not recommended to use a fully synthetic oil for running, the synthetics have too high penetrating power and may not create the necessary protective film on new, rough metal surfaces during laundry, it is better to use mineral or semi-synthetic oils labeled "for running" or simply ordinary mineral oil for two-stroke engines.

What if the engine stops when you add gas?

If the engine dies after heating up when the valve is opened, it's probably a problem in the carburetor, maybe it's contaminated with the idle jetty, or it's not adjustable for the mix, and it could be water in the fuel or clogging of the fuel filter, check the power system and blow out the jelly.

Should I change the candle after the lighting?

You don't have to change the candle after running if it works consistently and gives a good spark. However, if you used cheap oil or noticed heavy soda, it's better to install a new candle of the recommended type (usually NGK or analogue with the potassium number specified in the instructions), this will ensure stable spark formation in the future.

How to store the engine in the winter after running?

For winter storage, you need to fully develop fuel from the carburetor (smoke the engine with a tap overlay), drain the oil from the gearbox (if you plan to store it for a long time), or simply make sure that it is clean.