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I built the Otto- Sempto engine as a gasoline engine, it runs with the Cison CDI and two magnets in the flywheel.
The parts are as always from Toyan clean CNC milled and fit perfectly.
However, Toyan should rethink its concept, I have already built some Toyan engines and it is always little things that spoil the fun of the model.
Poor sealing, carburetor has no clean idle adjustment, even the new diaphragm carburetor can not be perfectly regulated.
The Otto engine also gets too hot because it has too few cooling fins,
otherwise it runs reasonably well.
The build is very easy. Great parts quality as well.
I built the Otto- Sempto engine as a gasoline engine, it runs with the Cison CDI and two magnets in the flywheel.
The parts are as always from Toyan clean CNC milled and fit perfectly.
However, Toyan should rethink its concept, I have already built some Toyan engines and it is always little things that spoil the fun of the model.
Poor sealing, carburetor has no clean idle adjustment, even the new diaphragm carburetor can not be perfectly regulated.
The Otto engine also gets too hot because it has too few cooling fins,
otherwise it runs reasonably well.
I just finished my l200ac. Went together easy. Runs great. I did have to modify the rocker arms, there was no clearance and the valves weren't closing. I just polished the contact surfaces on the rockers with a fine file then 1200 grit sandpaper until I had a little clearance so the valves could seat. Overall a great buy,
First off the machining is wonderful on this little engine. Within two crank cycles, the glow plug igniter burned out. I have Tried new glow plugs with no luck .
I have reached out to Stirlingkit for a replacement but haven’t heard back from them.
On another note, the carburetor on this engine doesn’t work that well.
I cannot get a good high end, needle, setting or low needle setting. The timing is correctly.
Cool model
Great fun for everyone!
Great little Motor!
Kickstart your engineering journey with this Semto 4-Stroke Dual-Cylinder Engine model kit. Perfect for young mechanics, it’s a hands-on way to learn about engine mechanics while building a fully functional, working model engine.
Recommended by 10,000 mechanics
The Semto engine is designed for beginners who are interested in engines. It is easy to build and no special skills are required. Just order the complete set (engine and starter kit) and this engine will work. Build a real working 4-stroke engine kit to better understand how cars work. These are perfect educational toys. Free shipping worldwide. Stirlingkit ships internationally.
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Looking to dive into engine building? The SEMTO 4-Stroke Engine Kit offers a hands-on experience with a functional, affordable engine model. Perfect for beginners and enthusiasts alike, this kit combines education and fun, giving you the chance to assemble a fully operational engine at an unbeatable price.
"It's not just an engine model. It really runs.You can explore more potentials on the Semto engine."__ Scale Addiction
"This Semto engine model is incredible! The high simulation and attention to detail are outstanding. I enjoyed assembling it and learning about its internal mechanisms. It’s a perfect addition to my collection."
"I’m impressed with the performance of this 2-cyl engine model. The dual synchronous belt and innovative carburetor make it run smoothly and efficiently. The assembly process was fun and educational."
"As a high school teacher, this Semto model has been an excellent teaching aid. My students love it, and it’s perfect for demonstrating mechanical functions. The realistic design and detailed components are fantastic."
"The engine looks great and is fun to assemble, but the starting ignition set not being included was a disappointment. It would have been better if everything needed was in the box."
Unleash the roar! Build your own nitro engine today and experience the thrill of true power!
Shop NowHave a Question? We’ve Got the Answer!
| Feature | Details |
|---|---|
| Material | Aluminum |
| Max Speed | Up to 16,000 RPM |
| Starting Method | Electrical starting with 480 brush DC motor |
| Fuel Type | 20-25% Nitro Fuel |
| Carburetor | signal carburetor |
| Assembly | DIY assembly required |
| Displacement | 7 (3.5*2)cc |
| Cyilinder Diameter | 16.6mm |
| Stroke | 17.00mm |
| Power | 0.6ps |
| Cooling Mode | Air Cooling |
| Starting Voltage | 7.4V 2S Li battery (Not Included) |
| Product Dimensions | 11.2 x 9 x 9.2cm (800g) |
