RETROL R29 4.2CC Mini OHV V-Twin Double-cylinder Four-stroke Gasoline Engine Internal Combustion Engine Model for Motorcycle

Brand: RETROL

Item Number: R29

Material: Brass, Stainless Steel

Color: Matte Black, Brass

Overall Dimensions: 150*120*140mm

Engine Dimensions: 120*80*110mm

Wooden Base Dimensions: 150*120*30mm

Scale: 1:5

Weight: 1650g

Form: Ready to run

Type: Twin-cylinder four-stroke gasoline engine

Displacement: 4.2CC

Cylinder Diameter: 13mm

Stroke: 16mm

Cooling Method: Air cooling

Starting Method: Electric drill start/Manual start

Ignition Method: Electronic igniter

Spark Plug Type: 3/16-40 inch threaded spark plug

Lubrication Method: Mixed/Splash lubrication (Gasoline/Engine oil = 25/1)

Fuel Type: 95# Gasoline

Engine Oil Type: 2T engine oil

Starting Power: 4.5V AA batteries*3 (not included)

Suitable Age: 14+

Packaging Method: Cardboard box

Package Contents: Engine*1, Electric drill connecting shaft (starting rod)*1, Pull starter*1, Spare O-rings*1 set, Instruction manual*1.

Features:

1. This is a miniature gasoline engine model based on the V-twin motorcycle Knucklehead engine from the 1970s. It wonderfully embodies the spirit of different eras.

2. A retro-style machine with classic body lines, a cold cooling structure, a brand-new carburetor design, and a toggle throttle lever, further restoring the details of a real engine. This is one of the most complex engines we have produced.

3. Every component of the engine has been meticulously designed and manufactured. It is made of brass and stainless steel, and comes with a wooden base for easy placement and operation, ensuring smooth running.

4. The engine is ready to run, including starting and ignition equipment, making it more user-friendly for novice model enthusiasts. You won't be disappointed when it's running. You will be amazed by its excellent performance.

5. It has become a highly sought-after collectible, worth displaying and playing with. Suitable for personal use or as a unique and high-end model gift for friends and family on special occasions.

Precautions:

1. If the ignition system is working properly and the cylinder compression is normal, but the engine fails to start, the carburetor fuel needle may need adjustment.

2. After tightening the main fuel needle on the carburetor, loosen it by 1/4 turn, and then start the flywheel to allow the gasoline-air mixture ratio to reach the normal operating ratio after several attempts.

3. The power switch should be turned off when the machine is stopped.