SKU: 18431559279

SEMTO ENGINE ST-NF2 DIY Build a Nitro 4 Stroke 2 Cylinder Engine Kit That Runs- FS-L200AC

Sale price$130.49 Regular price$144.99
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Description

SEMTO ENGINE ST-NF2 DIY Build a Nitro 4 Stroke 2 Cylinder Engine Kit That Runs- FS-L200ACSEMTO ENGINE ST NF2 DIY Build a Nitro 4 Stroke 2 Cylinder Engine Kit That Runs OTTO MOTOR FS L200AC NoteThe engine is equipped with a 480 brushed DC motor, and it is more suitable to use two ignition modules directly. you can buy it here. Now there is no need for an ESC, and it can be started directly by connecting a 2S battery. However, the output cable of the thermal head on the previous ESC can also be used. If you have these accessories before,

 

SEMTO ENGINE ST-NF2 DIY Build a Nitro 4 Stroke 2 Cylinder Engine Kit That Runs- OTTO MOTOR FS-L200AC

 

Note:The engine is equipped with a 480 brushed DC motor, and it is more suitable to use two ignition modules directly. you can buy it here. Now there is no need for an ESC, and it can be started directly by connecting a 2S battery. However, the output cable of the thermal head on the previous ESC can also be used. If you have these accessories before, there is no need to buy them again. The battery needs to be prepared by yourself.

IMPORTANT REMINDER!  The engine is in stock now. the order will be sent out within 1 working day.

Semto Twin Cylinder 4 Stroke RC Engine Get-Started Beginner Guide: click here 


Features:


.Toyan has a passion for machining the highest precision and quality scale engine models. Toyan indeed has released a few engines in assembly DIY versions. However, we find some students can't afford it even though they do like Toyan engines but not the price. So we discuss this with the Toyan engine team. Why not make an engine that everyone can afford? We hope every petrolhead college student can take it even if they have a low budget. In this case, the idea of making an entry-level come into Toyan mechanics' minds for a year. So they have started to design and make it several times. And they have also co-branded with SEMTO Engine & OTTO MOTOR to make brand-new 2-cylinder 4-stroke engine kits recently. That means the costs are greatly marked down.  so that is, OTTO MOTOR FS-L200AC ( or SEMTO ENGINE ST-NF2) - Simple, Easy To Use, and Intuitive. Just only 149.99$ and take this pocket-size engine home. (Please note that this is the entry-Level engine so the structure is simplified but it's fully functional. the size is smaller too) Please note that the engine after the order time December 12, 2022 will comes with the updated logo SEMTO ENGINE ST-NF2. They are the same engine except the name of logo. If you want the logo OTTO MOTOR there only, please contact [email protected]

High Simulation: The engine model with a realistic appearance and red sport elements meaning thunderbolt movement is closer to a real engine.
.Miniature: Treated by aluminum CNC processing and oxidation coloring, the delicate engine features a meticulous surface, compact structure and lightweight body.
.Dual Synchronous Belt Pulley: The timing structure of a dual synchronous belt pulley greatly reduces the risk of gear jumping in high-speed operation.
.Rocker Arm: The short rocker arm makes the valve switch operation more accurate.
.Carburetor: Enjoy easier adjustment and more sensitive throttle response thanks to the brand-new signal carburetor.
.Electrical Starting: Equipped with a high-torque starting motor for a more convenient and smooth start.
.DIY: You can walk through the internal structure and mechanical operation principle of the engine while enjoying DIY assembling fun with the desktop engine model.
.Wide Applications: Blending perfectly with a gearbox for superior compatibility and an excellent guarantee to upgrade, the product makes a stunning mechanical artware, an ideal gift for mechanical engine enthusiasts and a superb teaching aid for demonstration teaching in physical&mechanical classes. So many of our clients are teachers from schools.
.Note: Starting Ignition set is not included, please prepare or buy it by yourself. If you have any questions about the product, please contact us in time.

Specifications:

.Material: Metal
.Brand: OTTO MOTOR & SEMTO ENGINE
.Model: FS-L200AC / ST-NF2
.Form: Kit Version
.Engine Type: Nitro Interal Combustion Engine Model
.Valve Mechanism: SOHC
.Displacement: 7 (3.5*2)cc
.Cylinder: Inline Double-cylinder
.Stroke: Four Stroke
.Cyilinder Diameter: 16.6mm
.Stroke: 17.00mm
.Speed: 4000-16000rpm
.Power: 0.6ps
.Cooling Mode: Air Cooling
.Lubrication Mode: Mixed Oil Lubrication (add grease)
.Starting Mode: Electric
.Ignition Mode: Ignition Modules (Not Included)
.Type of Electric Plug: F-type Four-stroke Electric Plug (Not Included)
.Starting Voltage: 7.4V 2S Li battery (Not Included)
.Fuel Type: 20-25% Nitro Fuel
.Product Dimensions: 11.2 x 9 x 9.2cm
.Product Weight: 535g
.Package Dimensions: 14.5 x 11 x 11.2cm
.Package Weight: 800g
.Packing: Graphic Carton
.Ages: 14+

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • 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: 18431559279

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4.4 ★★★★★
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Molly
Boise, US
★★★★★ 1
Defective Item
Color: Black, Color: Black
The door broke off immediately out of the package and the screws are stripped so they can’t be tightened into place. I might superglue it because I don’t want to go through the hassle of returning it and it’s the only way they’d offer even a partial refund for a defective product when I asked.
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Reviewed in the United States on May 25, 2026
D
Verified Purchase
David Pearl
Phoenix, US
★★★★★ 5
Effective & Attractive with Wireless Charging
Color: Blue, Color: Blue
This "valet" organizer, which is the first time I've heard that term for a product like this, is nearly perfect. For me, it checks all of the boxes and in a perfect world, I would have opted for a smaller piece with only three compartments for mobile, wallet, and keys. It's well made and quite attractive, especially the blue (favorite color, so I'm biased). The only feature I'm not a fan of is how the removeable, wireless charging pad was implemented, which sits up on a small lip at a slight incline. However, I'm not complaining one bit as the wireless charging is great, and it's a differentiator that determines the value of the piece. I would have preferred the pad be built into the piece, however the angle of it does make it easy to grab opposed to using your finger(s) to pry it up.
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Reviewed in the United States on September 8, 2024
D
Verified Purchase
Devon Edgerton
Houston, US
★★★★★ 5
Great nightstand valet for everyday items.
Color: Black+Green
Nice valet to add to a nightstand. Conveniently spaced sections to hold everyday items. Charging pad works great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
C
Verified Purchase
Christine
Bozeman, US
★★★★★ 4
Power Adapter Not Included
Color: Brown +Wireless
I'm initially impressed with this valet tray. I purchased two for my husband: one for his nightstand and one for his dresser, as he likes to keep things organized. We liked the idea of the wireless charging capabilities, but were a little disappointed to discover that the power adapter (wall plug) is not included with the tray. The tray includes a charging pad and a cord, but no wall plug. We don't have an extra pair in the house, so we'll have to wait until a pack arrives before we can test out the charging capabilities. That aside, the trays are a handsome set. I think 20% larger might serve us a tad better, but this will do very nicely for now. We're able to fit almost everything we need in the tray and that will leave the tables looking much tidier, even if one or two items don't quite make it in.
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Reviewed in the United States on October 20, 2025
A
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A Kisinger
Omaha, US
★★★★★ 5
Great organization and a charger too!
Color: Blue
Pros: charge pad works well to charge not only phones but watches as well,materials are quality and the blue color is very appealing. Fits well on the night stand and has great sized compartments for items to stay organized. Cons: none that I can note
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Reviewed in the United States on October 10, 2025

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