Running a water appliance is always an exciting moment, especially when you're away from shore and ahead of you is fishing or cruising. Suzuki They are widely considered to be some of the most reliable and easy-to-use units on the market, but even they require a certain algorithm of actions at start-up: improper start-up can lead to overheating, damage to the lower unit or, in the worst case, to injuries to the operator.
In this article, we will discuss in detail the process of launching both two-stroke and four-stroke models of the Japanese brand. You will learn about the intricacies of preparing the fuel mixture, the features of the system. ECM And I'm going to talk about why you can't ignore the control jet, and if you follow these rules, you can extend your engine's life by hundreds of hours.
Before you pull a starter or push a button, you need to make sure that all the preparatory steps are completed: the motor must be mounted on a transom, securely fixed, and the lower unit submerged in water, ignoring this basic rule is the most common mistake of beginners, leading to expensive repairs of the water pump.
Preliminary preparation and inspection of security systems
Any internal combustion engine starts with a safety check. Suzuki The emergency stop system is responsible for this, and there's an emergency cable with a stop button on the handle of the bumper or on the remote control panel, and if this cable is not installed in the socket, there's no spark on the candle, and you can't physically start the engine.
Make sure the reverse switch is in neutral position. On most models, this is the central position, marked with the letter "N." Starting the engine with the gear on can lead to a sharp jerk of the boat, people falling overboard or damage to the gears of the gearbox. Visually check the condition of the fuel hoses for cracks and scuffs.
⚠️ Warning: Never try to start the engine if you smell a strong smell of gasoline in the cockpit of the boat. This may indicate a fuel leak, which poses a risk of fire or vapor explosion.
Also worth checking out is the lower unit for foreign objects, often stuffed with algae, paklia or fishing nets left behind by careless predecessors, and cleaning these areas before starting will ensure normal coolant circulation from the first seconds of operation.
Preparation of fuel system for two-stroke engines
Owners of two-stroke models, such as popular Suzuki DT9.9 or DF15 (although the DF is already a four-stroke, in the context of the 2T series DT), special attention should be paid to the preparation of the fuel mixture. Gasoline must be fresh, the octane number is not lower than the AI-92, but rather the AI-95. Old gasoline, which has been in the canister for more than a month, loses its properties and can cause problems with starting.
The key is the right proportion of oil. Suzuki The standard is a ratio of 1:50 (2% oil). This means that 5 liters of gasoline need to add 100 ml of special two-stroke oil. The use of automotive oils or oils for outboard motors of other standards (for example, TC-W3 instead of JASO FD) can lead to the formation of soak on candles and piston rings.
Once the fuel is mixed in the tank, it needs to be shaken carefully, and the pumping pear fuel hose needs to be attached to the engine and pressed several times on the rubber pear until it becomes hard, and this action feeds the gasoline into the carburetor, creating the necessary pressure in the system.
It's important to check the sediment filter, which is often built into the fuel pump housing or at the end of the hose, and if there was water or big dirt in the gasoline, it's going to settle there. A transparent cup The filter allows you to visually assess the purity of the fuel before it enters the engine.
Features of launching four-stroke engines Suzuki
Four-stroke engines, for example, the legendary Suzuki DF140 compact DF6AThey have oil in the crankcase, and you don't have to mix it with gasoline, and before you start the first run of the season, you have to check the oil level through the probe, which should be at the top risk, but not higher.
The power system here can be carburetor or injector. Suzuki injectable EFI The electric Fuel Injection is easier to start because the electronics dosing the fuel, but if the engine was standing for a long time, the gasoline from the float chamber of the carburetor versions could evaporate, and it would take longer to pump the pear system.
When you start a 4T engine, it's critical to let the oil go through the system. Suzuki They have a pressure lubrication system, and the first 10 to 15 seconds after starting, it's best to let the engine run at idle speeds without loading, which is especially true after winter storage or long parking.
The secret of cold start of 4T engines
If the 4T engine doesn't start hot, it might have spilled candles. Try blowing the cylinders out by twisting the candles and scrolling the open-throttle starter.
And don't forget the air filter. Unlike 2T engines, where air passes through the crankcase, in 4T engines, a polluted air filter directly affects the mix, a dirty filter will enrich the mixture and make it difficult to start, and also increase fuel consumption.
Manual and Electrical Start Algorithm
The start-up process depends on the power of the motor. Low-power models up to 6 hp are usually equipped with only a manual starter. To start, you need to smoothly pull the cord until the resistance appears (this is the moment of compression), and then turn the crankshaft in a sharp, strong jerk. You need to pull the cord strictly vertically, without touching the handle of the engine body so as not to damage the mechanism.
medium and high power motors, such as Suzuki DF60 or DF200Before turning the ignition key, make sure that the gas handle is set to a minimum position. Many models have a system that blocks the start if the throttle is open. The key must be turned to the Start position and hold for no more than 5-7 seconds.
☑️ Checklist before launch
If the engine didn't start on the first try, don't immediately turn the starter over again. Let the battery recover (10-15 seconds) and check if the candles are flooded. In cold weather, 2T motors may need to use a "suction" (mixture enricher) that is on the motors. Suzuki It is often implemented through a separate lever or button on the tiller.
⚠️ Warning: When using an electric starter, never release the ignition key immediately after starting if the engine stalls. Allow the control system to stabilize idling speeds for 2-3 seconds.
Controlling and eliminating typical problems
After a successful launch, the first thing you need to do is make sure the cooling system is working. The control hole (urinal) must be a steady stream of water. The absence of a jet or its intermittent nature indicates a malfunction of the pump or clogging of the drainage channels. Operating the engine without cooling for even 30 seconds can lead to deformation of the cylinder head.
Pay attention to the color of the exhaust gases. A two-stroke engine is normal for a sizable haze, especially on a warmed engine. However, black smoke indicates too rich a mixture (a lot of oil or problems with the carburetor), and white smoke indicates water entering the combustion chamber, which may indicate a breakdown of the gasket.
Listen to the sound of the engine. A smooth rumbling is a sign of serviceability. A knock, a screech or a trio (three-cylinder operation) requires immediate stop and diagnosis. Often the cause is a poor fuel or a malfunction of the ignition system.
Save a sample of the working motor on the phone recorder on the first day of operation, in the future this will help you to hear changes in the operation of the engine and notice the malfunction in time.
If the engine Suzuki It starts and dies, and check the vent in the fuel tank lid, and if it's clogged, it creates a vacuum in the tank, and the fuel stops flowing to the pump, and just open the tank lid to fix this problem.
Table troubleshooting: problems at start
For quick diagnosis of startup problems, use the following table to help localize the malfunction by external signs.
| A symptom. | Probable cause | Action. |
|---|---|---|
| Starter doesn't spin | Battery discharged or poor contact terminals | Charge the battery, clean the terminals. |
| The engine is catching and stalling. | Clogged with a carburetor jetty or filter | Blow the system, replace the filter |
| No spark. | Not installed locking cable or faulty CDI | Check the cable, replace the candles. |
| Heavy launch to hot. | Fuel transfusion (rich mixture) | Ventilate the cylinders, check the float |
Regular maintenance significantly reduces the risk of these problems. Motors Suzuki They're famous for their maintainability, and most of the units are available for inspection without a complete breakdown, and the timely replacement of candles and fuel filters is the key to easy start-up in all weather.
The main secret of Suzuki reliability is the use of high-quality fuel and regular replacement of anticorrosion anodes, which protect the lower unit from galvanic corrosion.
Warming up and start of movement
After starting, the engine must work at idle speeds for 2-3 minutes, which is necessary to warm up the piston group and reach the engine operating temperature. In two-stroke engines, the mixture stabilizes at this time, and the engine begins to work smoothly.
Don't give full gas on a cold engine. A sharp increase in revs can lead to bullying in the cylinders due to insufficient thermal clearance between the piston and the cylinder wall. Smoothly add gas until the motor starts to respond to the control handle without failures.
Before you start, make sure that there are no bathing, algae or foreign objects around the boat. Smoothly transfer the gear lever from the "N" to the "F" position. Lean Burn (on some 4T models), it automatically adjusts the angle of ignition ahead for economical running.
Can I start the Suzuki engine out of water?
It is strongly recommended not to start the engine without immersion in water or without a special cooling barrel. Even 10-15 seconds of dry operation will lead to overheating and destruction of the rubber impeller water pump, which will require immediate repair.
What is the best gasoline to pour in Suzuki 4T?
For four-stroke engines Suzuki recommended to use unleaded gasoline with an octane number of at least 90 (research method), but the optimal choice will be AI-95. the use of fuel with ethanol (E10) is acceptable, but only if its content does not exceed 10%, as ethanol can aggressively affect rubber seals of old systems.
What to do if the Suzuki engine stalls on water?
First, check the fuel in the tank and the position of the emergency stop cable. If this is all right, try blowing the candles (if there is a suspicion of a bay) or switching the fuel crane (if there is one) to the reserve position. If the engine does not start after several attempts, it is better to call for help so as not to discharge the battery to zero.