RETROL Evolution R33 V-twin 4.2CC OHV Four-stroke Motorcycle Gasoline Engine Model

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RETROL Evolution R33 V-twin 4.2CC OHV Four-stroke Motorcycle Gasoline Engine Model

note: this engine is in stock now.


.Based on the V-twin cylinder motorcycle engine EVOLUTION from the 1970s, representing a highly iconic engine that wonderfully embodies the spirit of different eras.
.Featuring upgraded intake and exhaust valves enhance the power significantly, this engine, one of the most complex engines, exudes a retro charm with a classic body, cold cooling structure, a brand-new carburetor as well as the flick-style throttle lever, allowing for a more authentic real engine.
.Every carefully designed and processed component is crafted from brass and stainless steel materials. Come with a wooden base for easy placement and operation, ensuring smooth operation.
.Including starting and ignition devices, ready to run at any time, this model is friendly to novice model enthusiasts. You will be enticed by its good performance when it is running.
.Perfect as a coveted collectible for displaying and playing with, as well as for personal use or as a high-end model gift for friends and family during major holidays.
1. In the ignition device, if the machine does not start with the normal compression of the cylinder, you need to adjust the needle of the carburetor.
2. Tighten the main needle on the carburetor, loosen 1/4 cycle and turn the flywheel to ensure the normal mixture ratio of gasoline and air.
3. Turn off the power switch when the machine stopped.


.Color: Brassiness + Sliver
.Material: Brass + Stainless Steel
.Model Brand: RETROL
.Type: V-Twin Cylinder Four-stroke Engine Gasoline Engine
.Product State: Ready to Run
.Overall Dimensions: 15 x 12 x 14cm
.Engine Dimensions: 12 x 9 x 11cm
.Wooden Base Dimensions: 15 x 12 x 3cm
.Scale: 1/5
.Displacement: 4.2CC
.Cylinder Diameter: 13mm
.Stroke: 16mm
.Cooling Method: Air-cooled
.Starting Method: Electric Drill Start/Manual Start
.Ignition Method: CDI Electronic Ignition
.Spark Plug Type: 3/16-40 Inch Threaded Spark Plug
.Lubrication Method: Mixed/Splash Lubrication (Gasoline/Oil=25/1)
.Fuel: 95# Gasoline
.Oil: 2T Oil
.Starting Power Battery: 4.5V AA Battery*3 (Not Included)
.Product Weight: 1300g
.Product Dimensions: 12 x 9 x 11.5cm
.Package Weight: 2000g
.Package Dimensions: 20 x 20 x 20cm
.Packaging: Gift Box
.Ages: 14+

Customer Reviews

Based on 1 review
Ron Taddeo
First imoression

I was excited when the engine arrived ! It met all my expectations as I removed it from the well-padded box. Having experience with miniature engines , I immediately fueled it up , added the ignition batteries, primed the carb and spun it over by hand .. it fired up instantly and ran flawlessly.! I am very satisfied!