SKU: 5405516851

R90S Gasoline Flat-twin Four-stroke Miniature Motorcycle Engine Model 3.2cc ICE Engine

Sale price$360.00 Regular price$400.00
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Description

R90S Gasoline Flat-twin Four-stroke Miniature Motorcycle Engine Model 3.2cc ICE Engine3. 2cc Miniature Horizontally Opposed Two Cylinder Four Stroke Motorcycle Gasoline Engine Internal Combustion Engine ModelFeatures:. Motorcycle Engine: The cylinder body is level, so that the cylinder can avoid obstacles on the front wheels of the motorcycle and obtain good air cooled heat dissipation performance. Two symmetrical exhaust pipes are one of the hallmarks of a horizontally opposed engine. The advantage of this model lies in its ingenious

 

 

3.2cc Miniature Horizontally Opposed Two-Cylinder Four-Stroke Motorcycle Gasoline Engine Internal Combustion Engine Model

Features:


.Motorcycle Engine:

The cylinder body is level, so that the cylinder can avoid obstacles on the front wheels of the motorcycle and obtain good air-cooled heat dissipation performance. Two symmetrical exhaust pipes are one of the hallmarks of a horizontally opposed engine. The advantage of this model lies in its ingenious structural design, and every component restores the mechanical principle. An all-metal engine model that can be started and operated
.Sophisticated Manufacturing:

We use precision casting for the entire engine, and each part is carefully crafted. The contour of the cylinder and the casting process of other parts are very round, which became the most significant feature of motorcycles in that era. You will feel the unique charm brought by the mechanical operation of the engine
.Steps to start the engine:

(1) Check the engine wiring from the wooden base, connect the fuel tank oil pipe, and install 3 AA batteries (4.5V);

(2) Fill the fuel tank with 95# gasoline. The flywheel rotates clockwise multiple times on the right side of the engine (the surface of the power switch), its function can make the mixed fuel completely enter the cylinder and ensure that there is no air in the fuel pipe;

(3) Turn on the power switch, and then quickly turn the flywheel clockwise to stop the engine Start the engine on the right side (surface of the power switch)
.Note:

(1) If the ignition device is normal and the cylinder compression is normal, and the machine cannot start normally, it is likely to need to adjust the carburetor oil needle;

(2) After tightening the main oil needle on the carburetor, loosen 1 /4 turns and start the flywheel to make the mixing ratio of gasoline and air reach the normal working mixing ratio;

(3) When the machine stops running, turn off the power switch
.Superb Model Gift:

This is an amazing mechanical craft, feel the charm of the engine when it is working. Whether it is for personal use or as a gift of personalized high-end model gifts to friends, family members and model lovers during major festivals. Suitable age: 14 years old and above

Specifications:

.Color: As Shown
.Material: Brass + Stainless Steel + Wood
.Wooden Base Size: 150*120*30mm
.Weight: 1760g; displacement: 3.2CC
.Cylinder diameter: 13mm; stroke: 12mm
.Ignition device power supply voltage: 4.5V (use 3 AA Battery, battery is not included)
.Start Method: external force (electric drill) or manual
.Product Dimensions: 32.2 x 18.8 x 1cm
.Product Weight: 800g
.Package Dimensions: 36 x 26 x 6cm
.Package Weight: 1000g
.Packing: Box

Package Content:

.1 x Engine
.1 x Manual

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 5405516851

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I just received my TRALT Office Chair. First of all, I was impressed with the packaging of this item. When I opened the box each piece of the chair was wrapped in plastic or bubble wrap. Everything in the box arrived safely and without damage. Secondly, the instructions to assemble the chair were very each to follow. I was impressed with the Allen wrench which had a handle attached to it. This made screwing in the screws very easy. I was able to assemble the chair without any difficulty. Lastly, the look of the chair and the comfort is exceptional. I ordered the black/white chair which looks amazing. The comfort of the chair is really excellent. My back is supported by the lumbar seat and having the armrests being able to go up when not needed is wonderful. The quality of the chair is definitely worth the price.
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Reviewed in the United States on May 9, 2026
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Jennifer3002
San Leandro, US
★★★★★ 4
a good choice
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Assembled chair only to find that the lift cylinder was faulty. Would have preferred to be able to just get a replacement cylinder but calling China didn't seem like a viable option. Guessing which one & buying it online would involve paying for a good portion of what the chair cost. Customer service could only offer a replacement or refund. We're disassembling (so much fun?!) to send it back. The chair itself was very comfortable, assembled fairly easily and instructions pretty clear. Again, if we could only have asked the seller for the replacement part......**Update**...Or if the instructions that seemed so clear were clearer!, as we started to disassemble, we decided to see what would happen if the tension knob (see photo) was loosened. IT ALLOWED THE LIFT CYLINDER TO WORK. Not at all what the instructions say. At any rate, we're keeping the chair.
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Reviewed in the United States on June 4, 2026
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jinju jiang
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★★★★★ 5
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⭐⭐⭐⭐⭐ Absolutely love this chair! It was super easy to assemble—I had it set up in no time with clear instructions and minimal effort. The comfort level is fantastic; the seat cushion is just right and the back support makes it great for longer sitting sessions. The color is beautiful in person—clean, modern, and adds a fresh pop to the room without being overwhelming. I also really like the smooth wheels and sturdy build; it feels stable and well-made. Overall, this is a great combination of style, comfort, and value. Highly recommend!
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