Hit & Miss Gas Engine Combustion Engine Oil Modified Version Project  Engine Model STEM Toys
SKU: 81188338271

Hit & Miss Gas Engine Combustion Engine Oil Modified Version Project Engine Model STEM Toys

Sale price$121.50 Regular price$135.00
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Description

Hit & Miss Gas Engine Combustion Engine Oil Modified Version Project Engine Model STEM ToysHit & Miss Gas Engine Combustion Engine Oil Modified Version Project Engine Model STEM Toys Description: Item Name: Hit & Miss Gas Engine Color: Sliver Material: Aluminium Alloy RPM: 2000~6000 Weight: About 2kg Size Of Engine: 22*12*15cm(L*W*H) Flywheel Diameter: 7cm Voltage: 3. 6V Fuel: Kerosene or Gasoline Features: 1. This engine can burn alcohol. The alcohol concentration is not high, and the lowest 58 degree liquor can be used, and no lubrication

Hit & Miss Gas Engine Combustion Engine Oil Modified Version Project Engine Model STEM Toys

Description:
Item Name: Hit & Miss Gas Engine
Color: Sliver
Material: Aluminium Alloy
RPM: 2000~6000
Weight: About 2kg
Size Of Engine: 22*12*15cm(L*W*H)
Flywheel Diameter: 7cm
Voltage: 3.6V
Fuel: Kerosene or Gasoline

Features:
1.This engine can burn alcohol. The alcohol concentration is not high, and the lowest 58 degree liquor can be used, and no lubrication is needed.
2.Transparent combustion chamber, the internal situation can be seen clearly, the working process of the two-stroke internal combustion engine can be clearly observed, and it is convenient to learn the working principle of the internal combustion engine.
3.The outside of the combustion chamber is provided with a transparent water-cooling sleeve. The inside is water. The water 360 degrees completely encloses the combustion chamber to cool the combustion chamber. It does not need a water pump and automatically circulates. When the water temperature reaches 90 degrees or more, it is naturally convected. Distillation tank), the water flows into the tank sandwich to heat the fuel in the middle, the fuel is heated more easily, and finally sucks into the engine.
4.The ignition angle is adjustable. When the engine reaches a certain stable speed, the ignition angle adjuster is adjusted to pre-ignite. Adjustable from 0 to 30 degrees, find the best ignition angle to achieve the highest engine efficiency.
5.adjustable speed CDI, our original adjustable speed igniter can electronically regulate the engine.
6.This machine is similar to the Stirling engine. There are also power cylinders and matching cylinders. Except for transparent parts, all are all metal, and the combustion chamber is quartz. The water-cooled sleeve is bullet-proof glass, the piston is a steel chrome-plated piston, the cylinder liner is brass, and the outer casing is aluminum alloy.

Package Included:
1 X Hit & Miss Gas Engine 

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Exchange/Return Notes
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SKU: 81188338271

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PrimoCat
Los Angeles, US
★★★★★ 5
Difficult to destroy. Bounce really high.
Style: Squeaker, Size: Small (2 Pack)
Bought as a gift for a friend's small dog who dismantles tennis balls. He loves them. I have many years of experience with the product (in a larger size) for my big dog. He always had one either in his mouth or near him. They are pretty much indestructible.
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Reviewed in the United States on May 13, 2026
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Majesty
New York, US
★★★★★ 4
High quality, wish it was just a little smaller
Style: Squeaker, Size: Small (2 Pack)
Love these. My dogs would play ball all day if I let them. These are very durable and bouncy. Love that it’s washable. They would chew up the small “tennis” balls to pieces so I love that they can’t destroy these. My only criticism is I wish these were just a little smaller (like the size of the small Kong tennis balls). My dogs can carry it in their tiny mouths but they can’t get their mouth around it enough to chew it to get the squeaker to squeak, which is their favorite thing.
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Reviewed in the United States on January 5, 2026
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CA Goose
Draper, US
★★★★★ 5
Perfect for little dogs
Style: Ultra, Size: Small (2 Pack)
Perfect size for my 13 pound chihuahua mix. Great bounce and quality feel. Definitely worth it.
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Reviewed in the United States on March 26, 2026
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Amazon Customer
Omaha, US
★★★★★ 5
The perfect ball for a small to medium dog.
Style: Ultra, Size: Small (2 Pack)
My dog's favorite ball. Perfect size for playing catch and return for a small dog. She loves to chew on the ball. Very durable she has not been able to shred the ball. A great entertainment value. This ball does not squeak.
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Reviewed in the United States on February 27, 2026
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Kristy Kelly
Whiting, US
★★★★★ 5
High quality, dogs love them
Style: Ultra, Size: Medium (1 Pack)
My dogs are obsessed with these balls! We've had them for months and they're still good as new. High quality!
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Reviewed in the United States on April 5, 2026

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