Newtop

How much horsepower do I need for my boat?
When buying a new boat or getting a new motor, many people ask, "How much horsepower do I need?" There are many factors to take into consideration:

Manufacturer limits
Boat horsepower-to-weight ratio
Desired fuel efficiency, which will be impacted by horsepower
How you'll use the boat
The number of passengers you typically carry
The amount of your insurance premium (Usually, the higher the engine horsepower, the higher boat's insurance rates.)
The weight of the boat is important – the bigger and heavier the boat, the more horsepower you'll need. Newtop recommends that you have between 25 and 45 pounds of weight for each unit of horsepower.If you typically have a lot of people and gear on board, this will impact the amount of horsepower that will be best. When you are in doubt about appropriate horsepower, follow the manufacturer's recommendations.

Should I get a four-stroke or two-stroke engine?

Many people believe that four-strokes are superior to two. But, once you dig a bit deeper, the answer isn't so straightforward.

Four-stroke outboards burn straight gasoline within cylinders and circulate oil through a separate system — much like a car engine. This type of engine has cylinders that burn gasoline and a separate system to lubricate the engine with oil.Intake and exhaust take place at different times as the pistons move. Two-stroke engines, in contrast, burn a blend of gas and oil. In the past, this meant that four-stroke engines didn't offer as much power as two-stroke engines. However, modern fuel injection systems mean better fuel economy for four-stroke engines. Upgrades by manufacturers have created more powerful engines.

As environmental standards have changed and boaters look for a clean, efficient engine, modern outboard motors have evolved — narrowing the differences between four- and two-stroke engines. In the past, a carburetor or injector fed the mixture into the engine cylinder through an intake valve. This process led to a lot of fuel escaping, as the exhaust valve remained opened during this process. Today's two-stroke engines have been designed to prevent this fuel loss, making them just as smooth and quiet as four-strokes.

The Components of an Outboard Motor

On the whole, we need to divest an outboard motor and look at its intricate engineering to intimately know how it works. This starts by singling out every component.

Propeller – responsible for moving the boat through the water.
Starter motor – can either be electrically or manually triggered to start the motor.
Gearbox – contains the clutch and gears responsible for moving the prop.
Pistons – move back and forth to transfer energy to the crankshaft.
Fuel pump – transfers fuel the carburetors need to function.
Carburetors – combine air with fuel to form explosive mixtures used in each cylinder.
Crankshaft – collects power from the pistons to maintain speed.
Flywheel – accumulates momentum to maintain speed.
Camshaft – allows fuel in and also functions as an exhaust.
Cylinders – house the pistons and fuel tank that produce power. They come with spark plugs that ignite fuel.
Anti-ventilation and anti-cavitation plate – prevents these two issues that may damage the prop over time.
Mounting bracket – where the motor is installed. It’s designed to allow the motor to swivel up or down.
Cooling system – draws water to maintain optimal temperatures for the prop’s engine.

What Is an Outboard Motor?

Whether you’re new to the world of boating or are an experienced enthusiast, you’ll hear terms like outboards, powerheads, tiller and skeg used quite often. But what do all of these words mean, and how do they relate to one another?

Outboard motors are commonly used in the marine industry, and it’s important to understand how all of their different parts work together.

An outboard motor is a propulsion system for boats and is one of the most common motorized methods for propelling watercraft.

Unlike inboard motors, this type of motor is designed to be installed to the outside of the transom, or outside the boat—which leaves more room in the interior of the boat. Benefits of outboard motors include a high horsepower to weight ratio, ease of installation and maintenance and extended maintenance intervals.

An important thing to know about outboard motors is that they come in two different versions: 2- and 4-stroke. In the past, the differences between these two models were more significant. However, thanks to advancements in technology, modern-day 2- and 4-stroke motors are much more comparable in reliability, weight, speed and fuel economy.

Breaking Down the Parts of an Outboard Motor
Outboard motors consist of three main sections. These include:

Top (outboard powerhead)
Mid-section
Outboard lower unit
The top half of the engine contains the outboard powerhead, which is made up of several different components. The mid-section refers to the middle part of the engine, and the outboard lower unit is located below.

Why outboard motors are so expensive?
Outboard motors are so costly because they are extremely sophisticated bits of kit.
There are two kinds of outboard motor – those with an internal combustion engine and those with a battery-powered electric motor. The engines themselves can range from small 2 or 3 horsepower units up to larger 5, 6 and 7 horsepower models. Some even go as high as 10 horsepower!
If you were to buy a four-horsepower model, it would come with four of each component. This list is endless, but it includes parts such as ignition coils, gaskets, fuel cleaners, air filters, and more. If you add up all the parts, it’s a lot of stuff. So, the bigger your outboard motor, the more costly it will be.
How does an outboard work?
An outboard motor has three major parts: the engine, the transmission, and the propeller. When you turn the key, the ignition switch sends a signal to the starter motor, which starts the engine. The starter motor will then rotate the crankshaft until it turns the camshaft.
The camshaft also works with the valve lifters to open the exhaust valves, warm the engine, and make it run faster. These self-contained units sit at the stern of a boat, and essentially, their engineering is very similar to most vehicles.
How big an outboard do I need?
Small outboards are usually under 20 horsepower, while large ones can reach around 40. The size you select will depend on the sort of performance you’re after.
If you prefer a smooth, calm sailing experience, you’ll need an outboard of around 6hp. If you want to go a bit faster or waterski, we recommend somewhere between 18-25hp.
What outboard motor is the best?
There’s no hard and fast answer to this question. However, there are a few outboard motors that have made big names for themselves in recent years. Here are a few of the most popular, dependable outboard motors for sale that we’ve discovered:
How do you drive a boat with an outboard motor?
If you’re used to a steering wheel, driving a boat with an outboard motor may be a huge change. Let’s run you through the key things you need to consider when driving a boat with an outboard motor:
Prime and adjust
First off, you’ll need to push the primer button to start the motor. The number of times you have to press this will depend on the type of motor you have. Pressing your primer button too many times may flood the engine, so be careful.
Now, pull the start cord a few times to spur your engine into action. If the engine doesn’t start, we recommend opening up the choke and pulling the cord a few more times.
Set the motor in the right direction
If your motor has a lever to switch between directions, make sure it’s set in the right direction. Of course, this will always be facing away from the dock.
Start accelerating
To start accelerating, you’ll need to twist the handle positioned at the end of the tiller. This will allow you to accelerate and decelerate.
Steer
Now, it’s time to steer your boat. You can do this by using the tiller. On most outboard motors, you’ll have to push and pull the tiller to steer you in the right direction.
How many hours will an outboard motor last?
The average outboard motor will last an estimated 1,500 hours. Depending on how often you use your outboard motor, this could last you anywhere between five and ten years!
Of course, the longevity of your outboard motor will also depend on how well you maintain it. Here are some general tips and tricks for maintaining your outboard motor:
Fuel connections
You’ll need to inspect your fuel line regularly to assess for damage. Look out for things like faulty fuel connections and leaky lines.
Hose clamps
Keep an eye on your hose clamps, and look out for things like corrosion and damage.
Fuel tank
Assess your fuel tank regularly. Check things such as tank ventilation, water in your fuel, and other internal or external damage.
Lubrication
Ensure you lubricate all of the moveable parts of your outboard motor, and all appropriate parts of your steering system. Ideally, this should be done every year or every 100 hours (whichever comes first).
Water pump impeller
After 300 hours of use, you should be replacing your water pump impeller. If you use your outboard motor in sandy conditions, you may need to replace this more frequently.

The Complete Guide to How Outboard Motors Work

If you are new to boating, you may see a motor and assume that all of them are the same thing. However, you will hear terminologies like outboard engines, inboard engines, tiller, or skeg used when looking at motors. With those terms being common amongst seasoned watercraft owners, it may confuse you when you research them yourself.

But all these terms matter when you are looking at an outboard motor because it is widely employed in the maritime sector, and it's essential to comprehend how all their many elements interact. This is the complete guide to how outboard motors work, so you know what you need to keep an eye on.

OUTBOARD MOTOR COMPONENTS
The most frequently used method for motorizing and operating a watercraft is by utilizing an outboard motor. It is an effective way to cruise in the water because of its propulsion system. Additionally, it can be much smaller than an inboard motor, which can limit the amount of room you have when relaxing on your boat.

You will mount the motor on the outside of the transom, allowing maximum capacity for you and your patrons. There are plenty of advantages to using an outboard motor, including impressive horsepower, simple installation, and the ease of prolonged preventative maintenance.

Outboard motors are available in two configurations: two-stroke and four-stroke. Previously, the distinctions between these two versions were obvious. However, current two- and four-stroke motors are considerably more equal in terms of dependability, weight, acceleration, and fuel efficiency because of technological developments.

There are three major sections of an outboard motor: the outboard powerhead (top), the mid-section, and the outboard lower unity. The parts are located where the name implies. But with all three factors working in unison, you will understand how vital a proper outboard motor is.

OUTBOARD POWERHEAD
The outboard powerhead is comprised of several components that create a combustion engine. The powerhead contains all the essential motor parts like the engine block, pistons, valves, and cylinder heads that activate the engine. Here is how those parts work to get the outboard motor running smooth.

Engine block: This houses the engine's moving components, such as the piston rods, pistons, and crankshaft. It also includes the cylinders that hold the pistons. The engine's strokes occur inside the engine block and differ depending on which stroke engine it is.
Crankshaft: You can find the pistons connecting with the crankshaft within the engine block. The crank revolves around the pistons to produce energy as they travel back and forth. Piston rods link the piston together to the crankshaft. When the crankshaft rotates, the piston rods start firing, causing the pistons to revolve within the cylinders.
Cylinder heads: Directly on top of the cylinders is the cylinder head. This important part of the main engine block component holds varying pieces based on the stroke engine you have. They usually camshafts, cams, valves, and spark plugs.
Cooling tunnels inside cylinders, cylinder heads, and engine block are severe factors. These are essentially passages that let heat-absorbing water circulate across the powerhead. This prevents the engine from overheating and melting the metal.

A thermostat positioned in the cooling tubes regulates the water temperature running through the engine. The thermostat's function is regulating the engine’s temperature, as problems can arise if the engine gets too hot or too cold.

MID-SECTION
An outboard motor's midsection connects the engine with the bottom unit. Its primary role is to serve as a passageway for linking mechanical components to those in the base unit.

This portion features a bracket that secures the motor to the transom. This enables the motor to spin in various directions so you can steer the boat.

Smaller vessels generally include a tilt feature that lets you raise the engine up and out of the water. For your larger outboard motors, you may find out that operates with the simple click of a button.

The driveshaft housing, which acts as the engine's central structural portion, is similarly situated in the midsection. The driveshaft itself provides power to the lower unit with torque and rotation, giving the propeller juice to run. A water tube links to the lower portion, lowering the temperature of the powerhead with cooling water.

In summary, the mid-section of the engine is the bloodline, seeing as it connects everything that allows you to operate the boat with relative ease.

LOWER UNIT
Like the powerhead, several parts are needed to power the lower unit of an outboard motor. It consists of the following: driveshaft, propshaft, clutch dog, bearings, shift mechanisms, gear set, seals, and shims.

Lithium Battery Lawn Mower- Operation, Cycle Life, and Care

Lawnmowers are very essential tools in our homes and any other places that need frequent lawn maintenance. Some lawnmowers are powered by gasoline, some are manual, and some are powered by electricity. The choice of the one you buy depends and what you want to accomplish, your budget, and the energy source that is convenient for you.

Electric lawnmowers are normally powered by Lithium batteries that come along with the lawnmower when you purchase it. The life of these batteries largely depends on how frequent the mower is used and the charging habits of the user. In today's article, I am going to share with you everything you need to know about lithium battery-powered lawn mowers – how they operate, maintenance and their life cycle

What is the best battery-operated lawnmower

The best battery-operated lawn mower is one that not only fulfills your needs but also fits in your budget for both procurement and maintenance. Here are some of the key things you need to look at while choosing the best lawn mower for yourself;

The battery capacity

This is one of the key factors that you need to look at because it is what determines how long you will do the mowing before having to recharge. While choosing a lawnmower, you need to get one with at least 5AH if you want to mow for at least an hour before having to recharge. The battery usage also depends on the amount of energy required by the mower to get the work done.

Height of the deck

Lawnmowers are designed with different deck heights that you need to take into consideration before choosing one. The deck height of the lawnmower is what determines its cutting height. You need to base on the height of your lawn to know which deck height would be suitable
But normally, a lawnmower with a steel deck height of about 17 to 22 inches will always do a good job especially if this height is adjustable

How the mower is propelled

Lithium battery-operated lawnmowers are propelled in two different ways i.e. self-propelled and manually propelled ones. Self-propelled mowers are those that have powered rear wheels. in this case, your work is only to give the lawnmower directions and regulating speed. For manual ones, you will have to manually push, pull, and also give direction to the lawnmower during mowing.

Easy to use with little to no assembly right out of the box, the latest cordless electric lawn mowers run on rechargeable lithium-ion batteries, are far quieter than gas-powered models and, with no risk of fuel leaking or going bad, can be stored away vertically, saving precious garage or shed space and requiring no off-season maintenance. Most importantly, the best cordless electric lawn mowers perform just as well as their gas counterparts, so with many municipalities limiting the use of gas outdoor equipment, it’s time to make the switch.

The correct charging method for lithium battery chainsaws

When the machine batteries are too low prompt, you should try to charge it in time (do not wait until it automatically shuts down).

The activation of lithium batteries does not require special methods, and lithium batteries will be activated naturally in normal use of the machine. Therefore, all the pursuit of 12-hour ultra-long charging and the use of single-cell lithium batteries to automatically shut down are wrong.

How to maintain a battery chainsaw

When the lithium battery chainsaw is not used, the lithium battery can be taken out and stored, which can extend the service life of the battery chainsaw At the same time, it can also prevent accidental start-up and accidents. Lithium battery saws are best used after charging.

How to maintain a battery chainsaw

As far as possible, do not use while charging, which is not only more dangerous, but also the loss of the batteries are relatively large. The motor of the chainsaw needs to be checked regularly for debris, because the chainsaw has a lot of splashes when cutting, so if the motor has too much debris dust, it will also reduce the service life of the motor.

The motors of household chainsaws also need to be replaced regularly. Generally speaking, the chainsaw that is used frequently needs to be replaced with carbon brushes every six months, which can better maintain the chainsaw motor.

How long does the battery chainsaw last

The life of a battery chainsaw is generally 3-5 years, but the specific time depends on factors such as the user's charging method and environment. Generally speaking, lithium battery chainsaw can last about 2 hours, and the maximum power use is generally designed for 1 hour.

Therefore, if you need a longer use time, you can consider replacing the batteries with a larger capacity. However, this data can only be used as a reference, because there are differences in the charging method and use environment of each person's battery. The life of the li battery is estimated based on the user's charging every three days (under the ideal state of full charge and discharge).

● The duration of battery chainsaw

The use time of the electric saw is related to the size of the li battery capacity, the general equipment manufacturer will have a standard, if you want to extend the use time to replace the batteries with a large capacity, you can first check the parameters in the manual and the method of replacing the battery capacity, you can also go to the battery stores nearby.

How long does the battery chainsaw last

Generally speaking, lithium battery chainsaw can last about 2 hours. Maximum power usage is generally designed for 1 hour. If you use a power outage, you can continue to use it after a period of time. When there is a power failure in use, the power shows no power.

After removing the batteries and leaving it for 20-30 minutes, you can continue to work until the batteries are completely discharged. Continuous operation causes the batteries power to plump and cause power failure, and a certain amount of remaining power can be restored when it is placed for a period of time.

How to use gasoline brush cutter?

What is the gasoline brush cutter? Brush cutters are typically used to cut tall grass, w**ds, brush, shrubs and woody material such as stalks and saplings. It has a specific cutting area, which means you can't just hack into vegetation from any direction. The blades rotate counterclockwise, so you must move from right to left when cutting.
Powerful and easy to Start: Newtop Gasoline brush cutter effortless and reliable starting system reduces the amount of pull force required for fast. This trimmer has a telescoping aluminium shaft that is ergonomic providing comfort for every user.

More efficiency: Newtop brush cutter is ideal for maintaining large and small areas, cutting thick brush, trimming grass and w**ds around trees and keeping the garden tidy for cutting various types of material from thick w**ds to brambles and roots. Blade high quality to ensure work more efficiency.

Safe use and maintenance of brush cutter

Newtop brush cutters are equipped with a variety of working devices, which can be used for cutting shrubs, harvesting bamboo, and mowing lawns. They are widely used in forestry, gardening, and agricultural production. Brush cutters rely on high-speed rotating sharp blades to cut tree branches, vines or semi-lignified grass, and most of them work in poor environmental conditions. Therefore, it is particularly important to correctly grasp the use method to ensure the safety of personnel and machines.

1.Familiarity with the structure is the prerequisite for safe use. In order to use the machine safely, the user should carefully read the instruction manual of the machine to understand its structure, working principle, use method and safety rules. The more you know about the machine, the safer it will be to use it.

2. Pay attention to the technical status of the grinding of the blade and the installation of the machine, which directly affects the safety of use. Therefore, great attention should be paid to the inspection, adjustment and maintenance of the machine before and after use, so that the machine is always in a normal technical state, especially to make its working parts meet the specified technical requirements.

3. No matter what kind of blade is used for operation, the cutting edge of the blade must be kept sharp to reduce cutting resistance, reduce operator fatigue, and avoid "knife jumping" accidents. For this reason, the blade should be sharpened in time. Under normal circumstances, brush cutters are equipped with special files, grinding wheels and sharpening devices, and operators should learn to use them correctly. The sawtooth angles required for grinding of circular saw blades include tooth throat angle β, tooth top angle a and tooth side angle i. The recommended tooth throat angle for circular saw blades for cutting wood is 6-5°, the tooth top angle is 15°, and the tooth flank angle is 15°. The flank angle of the 3-edged and 8-edged blades for mowing grass is 20°. Double-edged blades and collapsible blades have a 45° bezel. In addition, if the saw blade is warped, it should be leveled on the flat plate. In order to avoid pinch sawing, the tip of the saw blade for sawing trees is shifted left and right relative to the two sides of the saw blade by a certain value, which is called the amount of material S. The new saw blade should use the feeder to dial out the amount of feed according to the requirements of the instruction manual. The cutting amount of the circular saw blade of the brush cutter is 2.5mm. The saw blade is installed on the power output shaft of the reducer with a reverse threaded nut and a spring washer. The collapsible blade is screwed to the cutter head. Before using the brush cutter, check the tightening condition of the nuts or screws. Flat washers are not allowed to replace spring washers when installing blades. This is because a sharp blade rotating at high speed can cause significant injury if it falls off the drive shaft.

4. Use the correct method to work. When using the brush cutter for work, special attention should be paid to the method of use. Continuous cutting can be used when cutting small shrubs and grass, with a cutting width of 1.5-2.0 m. When working, the blade should cut from right to left, and reverse cutting is not allowed, because the sawtooth is directional. Pay attention to the direction when installing, so that the front of the tooth tip rotates counterclockwise when the saw blade is working (viewed from top to bottom). The blade kicked back, causing an accident. It is also not allowed to use the sawtooth directly in front of the saw blade for push cutting during operation. When sawing shrubs, the sawing speed should be controlled according to the throttle and the material, and it is not allowed to forcefully push the saw blade to avoid pinching or damage to the saw blade. It is strictly forbidden to cut down trees with a root diameter of more than 3 cm. Trees with a root diameter below 8 cm can be cut continuously in one direction until felled. When the root diameter is greater than 8 cm, choose the reverse direction, and cut the kerf first, but the depth should not be too large, and then saw in the opposite direction. If the saw is pinched during sawing, the throttle should be released, and then the saw blade should be pulled out. If there are w**ds entangled with the blade during work, the power should be cut off first, and then the cleaning work should be done. It is strictly forbidden to do w**d removal work when the power is turned on.

Battery-powered electric saws are light, quiet, fast, and ideal for fall and winter cleanup.

The fastest and easiest way to clean up a tree or limb brought down by a fierce autumn or winter storm is by using a battery-powered chainsaw. Click in a charged battery and get to work. So long as you keep its chain sharp and bar oil in the reservoir, you’ll make quick work of dicing up that wood.

This simplicity stands in direct contrast to the exacting maintenance protocol required for gas-engine chainsaws. You have to store one of those with ethanol-free, two-cycle engine mix or by mixing a preservative with its fuel. And you need to run a gas-engine chainsaw at least several times a year and keep it tuned with a fresh spark plug and air filter. If you do that, you’ll be rewarded with a saw that starts easily and runs reliably. Skip any aspect of that protocol and you have a finicky piece of power equipment that will likely fail you when you need it most.

There’s no substitute for the hard-charging torque of a properly tuned and well-maintained gas-powered saw, particularly for big woodcutting jobs. But for cleaning up fallen limbs, landscape maintenance, and tree pruning, battery chainsaws are more than up to the job. And chances are you already own a string trimmer or other cordless tool that uses a battery that can power the chainsaw. What’s more, professional-level tools compare very favorably with gas-engine saws when it comes to power.

Battery chainsaw benefits

Noise levels
The good news is that battery chainsaws can be used in urban environment such as school grounds, in ecologically sensitive areas, and indoors without breaching noise pollution bylaws. Petrol-powered chainsaws can run up to 119dB whereas battery models runs around 104 dB(A) and can be measured at the operators ear at 93dB (A). These noise reductions can have a significant cumulative effect for those operating saws in high-risk occupations.

Hand arm vibration
the reduction in exposure to hand arm vibration makes battery saws an attractive option for those serious about reducing occupational risks

Whilst most modern petrol driven chainsaws incorporate anti-vibration dampeners and heated handles, the risk of hand-arm vibration (HAV) still poses a health risk for regular users. Battery pack chainsaws generate significantly less vibration than gas powered saws. For e.g. Newtop models boast 2 m/s2 from the front handle for cutting, and 2.4 m/s2 at the rear handle for cutting. In comparison a similar petrol model produces vibration of up to 6.6 m/s2 for cutting. In the UK for example any worker exposed above the 2.5 m/s² (over 8 hours) action level is entitled by law to health surveillance. In itself, the reduction in exposure to hand arm vibration makes battery saws an attractive option for those serious about reducing occupational risks.

Weight
The higher the cc of a petrol driven chainsaw the bigger the weight of the engine. At 5kg a chainsaw may seem light but the effects of fatigue will set in after 20-30 minutes no matter how fit or strong the operator is. At 2.4 kg (minus battery) a battery saw is nearly half as light as petrol models of the same size. Ergonomically this is a stark decrease in terms of physical loading, and can significantly reduce the risks of fatigue and injury.

Fumes and emissions
Electric powered chainsaws use clean technology and create almost no smoke or emissions. This means reduced physical exposure to petrochemicals and reduced inhalation of hydrocarbons. From an environmental perspective it also means zero harmful emissions being released into the atmosphere.

Harmful chemicals
The risk of fire and explosion always exists when using, storing, and transporting petroleum fuel and oil mix. Physical contact with fuels also carries the risk of dermatitis. Battery operated tools reduce the risk of exposure to chemicals and the sealed batteries present no chemical risk when handled. Most battery models are designed with automatic chain oilers which requires minimal exposure to these hazards.

Chainsaw: FAQs

Q. What is the best type of chainsaw chain?

A. The best chainsaws are those that run on gasoline. heir chain moves at a tremendous rate and exerts a lot of strain.They're employed for heavy-duty jobs like limb removal and tree removal. But they are thoroughly dependent on the task at hand, and the suitable chainsaw is an individual preference.

Q. What is the best chainsaw for beginners?

A. If you are a beginner, you should use a lighter chainsaw or an electric chainsaw. They're great for mowing the lawn or cutting the grass in the garden. They're dependable chainsaws that can be used in a variety of situations.They're ideal for people who live in their own homes.

Q. What is the advantage of a top handle chainsaw?

A. Chainsaws with atop handles provide a secure hold. They give you complete control. These chainsaws' bars are even lighter than a standard bar. They offer a sturdy attachment point and good safety measures. Low-vibration technology is used.