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Description
Four-stroke 15cc OHV Single-cylinder Vertical Internal Combustion Engine Model15cc Vertical OHV Single cylinder Four stroke Internal Combustion Engine Model Physical Experiment Educational Toys Features:. Industrial Engine: The vertical OHV single cylinder four stroke gasoline engine with deeply industrial style is built with half perspective window for visible internal running process, flexible cylinder head capable of opening and closing, independent lubricating system to fill 4T engine oil separately and electronic igniter
15cc Vertical OHV Single-cylinder Four-stroke Internal Combustion Engine Model Physical Experiment Educational Toys -Features:
.Industrial Engine: The vertical OHV single-cylinder four-stroke gasoline engine with deeply industrial style is built with half-perspective window for visible internal running process, flexible cylinder head capable of opening and closing, independent lubricating system to fill 4T engine oil separately and electronic igniter equipment.
.Delicate Technology: All aluminium alloy parts processed by CNC machine tool, electric pulse and line cutting, with a machining precision of 0.02mm, and the crankshaft treated with hard chrome electroplating after 40Gr quenching and tempering as well as finish turning, with a hardness of 55HRC and a precision of 0.01mm. With shrink fit, the main shafts&main shaft gears and cam&camshaft feature sturdy and durable assembly. The valve, used 40Gr quenching and tempering as well as finish turning, assembles with alloy valve pipe for wear&heat resistance.
.Incredible Craft: The distinctive desktop engine model with stable&reliable structure and a sustainable use of 30mins generally, is easy to operate and friendly to beginners, allowing you to experience the unique mechanical operation charm from the engine.
.Collectible Gift: This model makes an amazing addition to any collections for the fans of machines and engine models. Perfect for an interesting science educational toy and a high-end&creative gift for families and friends.
.Notes: The base, power distribution cabinet and tank are not included in the simple edition, please buy the high-end edition if needed. Please operate the machine in line with the instructions to avoid damage to the machine by improper operation. Recommended for 14+.
Specifications:
.Material: Metal
.Bare Weight: 1.9kg
.Displacement: 15CC
.Cylinder Diameter: 25mm
.Stroke: 24mm
.Compression Ratio: 5/1
.Valve Mechanism: OHV (Overhead Valve)
.RPM Range: 800-5000rpm
.Lubrication Method: Wet Sump/Splash Lubrication
.Lubricating Oil Type: 5W40（4T）
.Lubricating Oil Filling Capacity: 25mL on Open Cylinder Head/35mL on Enclosed Cylinder Head
.Cooling Mode: Air-cooling
.Starting Mode: Manual Pull (Rope)
.Ignition method: CDI Electronic lgnition
.Starting Voltage: Approx 6V (Without Battery)
.Product Dimensions: 21 x 12 x 27cm
.Product Weight: 2200g
.Package Dimensions: 25 x 15 x 32cm
.Package Weight: 2500g
.Packing: Box
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4.8 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 4
Knot their Omega
Format: Kindle
It took me a day to really get into the book, there is a lot happening in the beginning of the story. I wish there was more of a time frame because I felt like something’s happened quickly but they were farther away than I thought so that was a little confusing to me. I felt like there was so much happening but also not enough.
As for the story itself I enjoyed it, it was different than other OV I’ve read. Bring the tissues, you will need them. They guys were great, I wish we saw more of Kai and Kenjis relationship. As for Nate…… IYKYK.
I enjoyed this book, my first from this author and look forward to reading about Kamaris story.
Book: ⭐️⭐️⭐️⭐️/5
Spice: 🌶️.5/5
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
★★★★★ 2
Has Potential, Poorly Executed
Format: Kindle
I really really wanted to enjoy this book and was looking forward to reading it. However there were just one too many convoluted plot points, sentences just did not flow nicely at times, and I was left with a lot of confusion on my end. I think it has the bones of being a great story but seems like it was rushed and I had to push myself to finish the last of the book and was left with an unsatisfying ending. It’s definitely different from other omegaverse novels I’ve read but not for good reasons. I really think it could be great but needs some serious tweaking and editing before I’d read it again.
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Reviewed in the United States on February 3, 2025
★★★★★ 5
Secrets, Seduction, and Rockstars!
Format: Kindle
Rockstars, secrets, and off-the-charts chemistry? Sign me up!
Cinder Blaze takes us on a rollercoaster of passion and peril with Knot Their Omega. Blair Vesper, a secret Omega masquerading as an Alpha, strikes a risky deal to tour with Blooming Salvation, a band teetering on the edge of chaos. Enter Icarus Morrigan, the enigmatic manager, and his three complicated and irresistibly sexy rockstars: wild Kenji, icy Kaiser, and fiery Nathaniel.
This book delivers steamy Omegaverse drama, sizzling slow-burn romance, and just the right dash of angst. The tension between Blair and the band crackles like electricity onstage, while the societal stakes add depth to the spicy dynamics.
Short, sharp, and oh-so-sinful Knot Their Omega will have you hooked from the first note!
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Reviewed in the United States on December 9, 2024
★★★★★ 5
ABSOLUTELY A MUST for Omegaverse Girls!!!
I ABSOLUTELY LOVE Jillian West and her books!!! I’m so happy I already bought book two and now I have to buy the others for the Assurance Security series!!
Not gonna lie Val kind of annoyed me at the beginning but she grew on me!! Her men are chef’s kisses!!! Holt annoys me some but I can let it slide. I already bought part two so I’m going to be reading that in between work phone calls!!!! DON’T TELL MY BOSS 😂😂😂😂
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Reviewed in the United States on September 30, 2025
★★★★★ 4
Baby bumps and bodyguards
Format: Kindle
Dark, emotional, and unexpectedly tender, Not Ready is an omegaverse romance that delivers found family feels, fierce protectiveness, and a very pregnant heroine who refuses to break. Vale’s on the run from a stalker, but lands in the arms of three private security alphas, cue the swoony tension, fake marriage twist, and slow-burn heat.
It’s a little gritty, a little soft, and a whole lot addictive. If you love protective alphas, high stakes, and heroines with quiet strength, this one’s a must-read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
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