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Small Engines
Miscellaneous small engines refer to low-power internal combustion engines (operating on gasoline/petrol), or electric engines. These include chain saws, lawn mowers string trimmers, snow and leaf blowers, wood chippers, and go-karts.
1,382 Questions
Can you drive any kind of scooter in Illinois on the streets without a drivers license?
No. All scooter or moped operators must have a valid driver's license; for a car if 49cc or less, for a small motorcycle if 50cc to 150cc, and for a large motorcycle if larger than 150cc. All mopeds/scooters must be registered with the state, you must have plates, and you must have insurance.
What is the difference between two and four stroke engines?
In a 4-stroke engine, the steps (strokes) are:
- Intake stroke: During the intake stroke, the piston goes down from the top of the cylinder to the bottom, reducing the pressure inside the cylinder. It then draws a mixture of fuel and air into the cylinder through the intake port, ready for the compression stroke.
- Compression stroke: With both intake and exhaust valves closed, the piston goes back up to the top of the cylinder compressing the fuel-air mixture. This is what happens during the compression stroke.
- Power stroke: The compressed air-fuel mixture is then ignited by a spark. The pressure from the fuel-air mixture combustion drives the piston back down with humongous force, keeping the crankshaft turning. This is the power stroke phase, which is the main source of the engine's torque and power.
- Exhaust stroke: Finally, during the exhaust stroke, the piston again goes up and pushes the burned gas from the cylinder out the exhaust valve.
Unlike the four stroke one, a two stroke engine has three strokes combined into one action, meaning the intake and exhaust are both integrated into the compression movement of the piston, therefore eliminating the need for valves. This is thanks to an inlet and exhaust port integrated into the wall of the combustion chamber.
As the piston goes down from combustion, spent gasses are allowed to exit the chamber through the exhaust port. The air-fuel mixture is drawn through an inlet located lower in the chamber. As the piston rises again, it blocks off the inlet and exhaust ports, compressing the gasses at the top of the chamber. The spark plug fires and the process starts over.
The spark plug fires on every revolution.
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A two stroke engine can produce twice the amount of power (and makes twice as much noise) than a four stroke engine of the same size. This is because it fires once every revolution, giving it twice the power of a four stroke, which only fires once every other revolution. Significantly, it also has a higher weight-to-power ratio because it is much lighter.
Two stroke engines are simpler and cheaper to manufacture compared to four stroke engines because of their simpler design. Four stroke engines are longer lasting than two stroke engines that don't have a dedicated lubricating system. However, the spark plugs in a two stroke engine last longer than those in a four stroke engine.
Four stroke engines are more fuel efficient and environmentally friendly when compared to two stroke engines that also create an unpleasant smell. Two stroke engines are responsible for much more pollution due to the combustion of the oil that has to be added to the fuel to lubricate the piston.
What is the best Arctic Cat Snowmobile?
the best arctic cat snowmobile ever made is the brand new arctic cat crossfire 1000 if your looking to purchase a sled for the winter months i highly recommend getting a crossfire 1000 you wont be disappointed with the crossfire in anyway
How do you remove the governor on a motorized go-cart?
if its a 2-stroke the governer is a little black block that keeps the throttle from opening.so watch the throttle on the carb as you slowly open it.just remove about half of it though or else the throttle will start to close again
How do you time the rotary valve on a1985 ski doo?
This needs a few tools to do correctly, a dial indicator and a degree wheel. The process is some what easy with the right tools. If you want to go on with this job let me know I can e-mail you scans from the repair manual on the subject. The manual is for later models, but the rotary valve times the same on all of their engines. I have had Ski Doo for many years, have done a lot of work with the engines.
How do you fit 2 ATV on a 7 ft by 10 ft trailer?
1. Use ramp
2. Load onto a trailer
3. Turn sideways 1. Use ramp
2. Load onto a trailer
3. Turn sideways
What year is your 7.5 hp mercury motor serial number 442399?
Your 7.5 hp Mercury, serial number 442399 is a 1976 year model.
The manual on my 18' Larson says 5 minutes, but I never run it that long. If you smell gas it's better to be safe than sorry!
What is the compression for a Yamaha warrior 350?
The book says Standard: 121 psi (850 kPa) Minimum: 114 psi (800 kPa) Maximum: 128 psi (900 kPa) but this is for at sea level, not sure what it is supposed to be at any where else such as at 5000 feet which is what I am trying to figure out.
What is the maximum speed limit for a 150 cc scooter?
The maximum speed limit for a 150 cc scooter is around 60 mph. The size and weight of the rider plays a large part in the top speed.
How do you disable the electronic governor on a Westward Industries go-4?
Under the seat is a vaccum hose and their is a box it goes to . The two grounds need to be common together.
What type of engine oil does a kawasaki mule 550 use?
The manual says to use 10w40. 1.3 liters w/ filter change. 1.1 without.
Is a polaris Indy 500 a racing snowmobile?
I have a nice Indy 500 sitting in the driveway. It's a great trail sled, but a racer she isn't...
What is the proper oil gas mixture for a Homelite UT 10847 Chainsaw?
I use 40:1 mixed with high quality 2-stroke oil. I have used this mix in 1000s of chainsaws without any problem.
http://store.chainsawr.com/
Stock raptor 250s willl make around 17-20 hp at the rear wheels.
What kind of oil do you use in a John Deere JS60?
Briggs & Stratton makes the 190 cc 4-cycle engines for these units, and B&S recommends their own oil, which is SAE 30W for use in the engines. As it is almost impossible to find motor oil on the market that isnot SAE rated, just about any SAE 30W motor oil will work. It's up to you. Just be sure to follow the manufacturer's recommendations regarding draining and replacing the oil. And Mother Earth will appreciate it if you recycle that (approximately) 20 ounces of oil you (carefully) drain out into an appropriate container. A link can be found below so you can check facts and learn more.
How do you install fuel pump on Yamaha G2 golf cart engine?
You take the old pump off........ then you put the new pump on.
What is the compression for 5 hp Briggs and stratton motor?
The compression would be low as there is a compression release valve that runs off of the camshaft to make starting easier......I would say no more than 60 psi after several strong pulls.......in trade school the instructors explained that small engine mechanics cannot really do compression tests on these engines..........
Sounds like that diaphragm between the tank and carburetor to me...pull tank/carb assembly from the mower, then remove the carburetor from the tank. whats in-between is the gasket/diaphragm(be sure to remove all the old material before installing the new one) that pumps the fuel up to the carburetor and into the engine. The diaphragm only cost like 2 bucks and you can change it in like 5-10 mins. Dont waste the money on taking it to a shop, as long as you have the tools to do it....
