Hit & Miss Engines + Starter Bundle, Retrol HM-01 7cc Horizontal Single Cylinder 4-Stroke Water-Cooled Engine with CDI Igniter, Spark Plug, Fuel Tank & Base for STEM Education & Science Demonstration

Description

• Complete Ignition & Fuel Accessory Bundle: This all-in-one package includes the HM-01 KIT engine, base equipment box, fuel tank, oil pipe, CDI high-voltage pulse igniter, and 1/4-32 ME-8 spark plug. No need to purchase separate accessoriesbuild, fuel, and fire up your working hit-and-miss engine right away. (Note: JST plug battery and 92+ gasoline not included.)
• Precision Metal Craftsmanship: The main componentsbody, flywheels, and connecting rodsare cast in 304 stainless steel, while the crankshaft is high-carbon steel and hardened. Every assembly surface undergoes CNC precision machining, and the red electrophoretic surface treatment gives it a stunning vintage agricultural finish that resists wear for lasting display
• Authentic Hit-and-Miss Operation: Experience true 4-stroke mechanical motion with evaporative water cooling and mixed oil lubrication. The visible adjustable-flow oil cup, new-style carburetor, and resonance exhaust pipe produce the iconic "hit-and-miss" sound and rhythmic movement once you manually start the enginea perfect educational tool for demonstrating internal combustion principles
• Innovative Fast-Slow Speed Control: A specially designed switch gear lets you toggle between ultra-slow idle for mesmerizing display runs and high-speed operation for practical power output. Two perfectly balanced oversized flywheels with spring-loaded balls and split wide pulleys ensure stable, smooth operation and significantly boost playability
• Ready-to-Display Vintage Artwork & Gift: Painted in classic red to replicate antique farm machinery, this fully operational model serves as a captivating desk or cabinet centerpiece. Its an unforgettable gift for mechanical enthusiasts, model engine collectors, and STEM learners aged 15 and up, blending hands-on building with retro artistic charm

RETROL HM-01 ENGINE

Specifications:

.Material: Metal
.Brand: RETROL ENGINE
.Form: KIT Version/ Assembled Version
.Displacement: 7CC
.Cylinder: Horizontal Single Cylinder
.Stroke: Four-stroke
.Cylinder Diameter: 20mm
.Stroke: 22mm
.Cooling Method: Evaporative Water-cooling
.Lubrication Method: Mixed Oil + Oil Cup Lubrication
.Startup Method: Manual Startup
.Ignition Method: CDI Ignition System
.Spark Plug Type: 1/4-32 Thread ME8 Spark Plug
.Fuel: Gasoline 92 or Above
.Lubricant: 4-stroke Engine Oil (Mixed with Gasoline at a ratio of 1:25)
.Product Weight: 1800g
.Package Weight: 2000g
.Product Dimensions: 17 x 13 x 13cm
.Package Dimensions: 20 x 20 x 20cm
.Packing: Box
.Ages: 14+

Base Equipment Box + Fuel Tank + Oil Pipe Accessory Triad

Specifications:

.Material: Metal + Bamboo
.Product Weight: 400g
.Package Weight: 500g
.Package Dimensions: 20 x 20 x 20cm
.Packing: Box
.Ages: 16+

CDI Igniter + Spark Plug Kit

Specifications:

.Material: Electronic Components + Plastic + Metal
.Product Weight: 90g
.Package Weight: 100g
.Package Dimensions: 20 x 20 x 20cm
.Packing: Box
.Ages: 16+

Package Including
.Engine Set *1
.Instructions *1
.Base Equipment Box *1
.Fuel Tank *1
.Oil Pipe *1
.CDI Igniter *1
.Spark Plug *1

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