Decision to acquire boat-engine A 9.9 horsepower capacity is often a turning point for the boat owner, and that is considered the golden mean for PVC inflatables ranging in length from 3.2 to 3.8 meters. Parsun 9.9 outboard motor to buyTo get a reliable unit with minimal weight and sufficient traction for glides with two passengers, the market offers many options, but it is the Parsun brand that has established itself as an affordable and maintainable alternative to expensive Japanese counterparts.
However, the process of choosing and buying is not without nuances that must be considered before you visit the store or place an order online. It is important to understand the difference between modifications, features of lower unit and types of management. In this article, we will discuss in detail why you should pay attention to this model, what modifications exist and how to make sure you do not go wrong when buying used equipment.
Modern Chinese-made models like Parsun have made great strides in terms of build quality and environmental compliance, and when you buy one, you get a unit that, if properly maintained, can run hundreds of hours of motorbikes without major intervention. Let's look at the key specifications that make it popular among anglers and water lovers.
Technical specifications and design features
Constructively Parsun F9.9 This is a classic two-cylinder two-stroke engine, which provides excellent torque at low speeds, which is critical for a full-load plane. It weighs only about 27 kilograms, making it easy to transport in the trunk of a passenger car or even carry it manually over short distances. In comparison, four-stroke analogues of the same power will be significantly heavier and more overall.
The ignition system in these engines is electronic (CDI), which guarantees a stable start in all weather and no need to constantly monitor the gap of candles, as in old contact systems. carburetor It is set up in the factory, but has the ability to finely adjust the quality of the mixture, which is useful when using fuel of different quality or operating at high altitudes above sea level.
The power secret is 9.9 hp.
Often users ask how the 9.9 differs from 15 hp. Structurally, it is often the same engine, but with a throttle limiter or other carburetor. Some craftsmen remove the restriction, but this leads to a loss of warranty and the risk of overheating the piston group, since the purging of the cylinders is designed for less power.
The cooling system is particularly important, and the forced-circulated water cooler effectively removes heat even when it is operated at full speed for long periods of time.
- 🔹 Engine type: two-stroke, 2 cylinders
- 🔹 Working volume: 246 cubic centimeters
- 🔹 Maximum power: 9.9 hp at 5500 rpm
- 🔹 Start system: manual (traction starter)
- 🔹 Weight: 27 kg (no fuel)
- 🔹 Tank volume: 12 liters (removable)
The reliability of the design is confirmed by the use of high-quality materials for lower unit and anti-corrosion coating. It is important to note that the Parsun models of recent years of release are equipped with an emergency engine stop system (stop-tether), which is mandatory for safety on water.
Comparison of modifications: F9.9BMS, BML and others
If you wish, Parsun 9.9 outboard motor to buyThe main difference between the two is the control system and the length of the lower unit.
Modifications F9.9BMS It's a basic version with manual controls and a short lower unit, and it's ideal for lightweight inflatable boats, where you can control a tiller directly on the motor, and it's a classic option for single fishermen or pair fishing on small bodies of water.
Option F9.9BML It has a long lower unit and remote control, which means that the engine's romuler is missing (or can be installed optionally), and the gas and gear shifts are placed in a separate feeder, a configuration that is indispensable for boats with a control console or keel boats where weight distribution is important.
It is also worth mentioning the presence of a version with an electric starter (denoted by the letter E at the end, for example, the following: F9.9BMEAlthough this is rare for 9.9 hp because of the weight of the battery, some users appreciate the comfort of starting. However, the classic 9.9-force manual starter is easy and rarely causes criticism.
| Model | lower unit | Management | Weight, kg |
|---|---|---|---|
| F9.9BMS | Short (S) | tiller | 27 |
| F9.9BML | Long (L) | Remote | 29 |
| F9.9BMSL | Short (S) | tiller/Remote | 28 |
| F9.9FWS | Short (S) | tiller (Front) | 27 |
The choice between short and long lower unit depends on the height of the transom of your boat. Inflatable boats, the standard is short lower unit (427 mm), whereas metal boats or hard bottom boats often require a long (570 mm).
Advantages of buying a Parsun engine 9.9 hp
Why is this particular model a hit? The answer lies in the combination of price and functionality. Parsun outboard motor 9.9 It offers features comparable to more expensive brands, but at a much more affordable cost, making it the ideal entry-level solution for beginners.
The big plus is the unification of parts, and the engine design is very much the same as the time-tested Japanese models (particularly Yamaha), which makes it possible to do so. repairs and maintenance And you can find a piston group, a carburetor, or a lower unit gear, and you can find it.
When buying, be sure to check the equipment. The box should include: the engine itself, a remote fuel tank with a hose, a candle key, a set of tools and instructions. The absence of a tank is often a way to understate the price by the seller.
Another argument is that it's possible to upgrade, because as mentioned earlier, the design margin allows some owners to tune, even though it's not guaranteed. The engine can easily swell to 15 hp, but only if you're confident in your technical knowledge.
⚠️ Attention: When buying a motor with your hands, be sure to check the compression. For a two-stroke engine of 9.9 hp, normal compression should be in the range of 9-11 atmospheres. If the performance is below 8 atm, the engine requires a bulkhead.
Also worth noting is the low fuel consumption: the two-stroke Parsun 9.9 consumes about 3-4 liters of benzo-oil mixture per hour at full gas, which with a tank of 12 liters provides up to 3-4 hours of active travel without refueling. One tank can be enough for a whole day of fishing for a calm trolling.
Fuel consumption and efficiency of operation
The question of efficiency is acute for every owner of the boat. Two-stroke engines are traditionally considered more “gluttonous” than four-stroke, but in the 9.9 hp class, this difference is not as dramatic when compared with the loss in weight and dynamics. Parsun F9.9 It shows excellent results when the carburetor is properly set up.
To achieve maximum savings, you need to prepare the fuel mixture correctly: the ratio of oil to gasoline is usually 1:50 for new engines (using semi-synthetic oils) or 1:25 for mineral oils and break-in. Using quality oil reduces the formation of gas and fuel consumption.
In trolling modes (about 3000 rpm), the flow rate is only about 1.5-2 liters per hour, which allows you to travel long distances in search of fish places without fear of being without fuel in the middle of the reservoir. In planing mode, the flow increases, but the speed of the movement allows you to quickly reach the destination.
- 🐟 Trolling mode: 1.8 l/h
- 🚀 Half gas: 2.5 l/h
- 💨 Full gas: 3.5-4.0 l/h
- ⛽ Full tank range: up to 80 km (depending on load)
It is important to use fresh gasoline. Fuel that has been in the tank for more than 2-3 months loses its properties and can lead to unstable engine operation, which indirectly increases the consumption. If you canned the engine for the winter, be sure to produce the residues of the mixture or drain them.
Where to buy: dealers, marketplaces or used market
Deciding where The official dealers offer a warranty (usually 2 years) and pre-sale preparation (break-in, compression check) for the Parsun 9.9 outboard motor, which is the safest way, especially for those who are not versed in technology.
Marketplaces often offer lower prices, but there is a risk of getting the product without pre-sales preparation or with damaged packaging. In addition, warranty cases through marketplaces are solved more difficult and longer. Always check the seller's rating and availability of service centers in your city.
☑️ Checking the engine when buying
Buying a used motor is a lottery, you can save up to 40 percent of the cost, you can buy a tired engine that requires more than the savings, and if you buy it from hand, you can demand a video of the engine running on water or even on a barrel of water.
⚠️ Attention: Never buy a motor without documents (PTM or contract of sale) if you plan to register it with GIMS. The lack of documents will make legal operation impossible.
Most people will prefer to buy from a specialized boating store during the fall or spring sales, during which time prices are lower and the likelihood of buying a quality new product with full support is maximum.
breaking in and first service: expert advice
Proper breaking in is the key to a long life for your Parsun 9.9Many people ignore this stage, believing that modern motors do not require attention, and pay for it by reducing the resource, running is necessary for grinding piston rings and bearings.
The break-in process takes about 10 hours. The first 2 hours (2 tanks of fuel) the engine should run at a speed of no more than 3000-3500 per minute (about half of the gas). Do not let the engine run for long at idle speeds and do not put the boat on the plane during this period.
breaking in mode:0-2 hours: up to 50% power (3500 rpm)
2-8 hours: up to 75% power (4500 rpm)
8-10 hours: short-term outlets to full gas
After 10 hours: change the oil in the gearbox
After the first 10 hours of operation, you need to replace the oil in the gearbox, during the process of running in the oil, the products of the grinding gears can enter the oil, and it is also recommended to stretch all available bolt joints, as they can weaken from vibration.
The first maintenance after 10 hours is critical to removing the metal's factory stress and removing the chips from the gearbox, and skipping this stage could lead to bullying in the future.
Check the spark plug regularly, and the color of the electrode will tell you about the state of the engine: brick-brown is the mixture normal, black soda is a rich mixture or little oil, white soda is a poor mixture or overheating.
Frequently Asked Questions (FAQ)
Can I get a 9.9-packed gasoline without oil?
Absolutely not! It's a two-stroke engine, lubricating it with oil added to the gasoline, and running on pure gasoline will lead to a jamming of the piston and a major engine repair in a few minutes.
Which gasoline is better to use: AI-92 or AI-95?
The manufacturer recommends the use of AI-92 gasoline. the use of AI-95 with a higher octane number will not give an increase in power, but can lead to a higher temperature regime of the engine, which is undesirable for air cooling (although Parsun has a water, the principle is similar for small power).
Do I need to register the engine 9.9 hp in GIMS?
Yes, if the engine power exceeds 8 kW (about 10.88 hp), registration is mandatory. Motors up to 10 hp (inclusive) are not subject to registration if the weight of the boat also does not exceed 200 kg. Parsun 9.9 formally fits into the limit, but when checking, questions may arise if the PTM is specified more than 10 hp.
The engine is running at idle speed, what is the reason?
The most likely causes: a contaminated carburetor (idle jicler), air sucking through the glands or gaskets, improper adjustment of the screw quality of the mixture, and the problem may be in the spark plug or ignition system (coil).
Is the Yamaha 9.9 compatible with Parsun?
Most of the time, yes. The Parsun and Yamaha (especially the older two-stroke models) have the same slatches, but it is better to try it on before buying a propeller or consult the seller, since the pitch and diameter of the propeller also affect the engine.