Features:
1.Mini Engine:This is a water-cooled vertical single-cylinder engine with a speed limit mechanism and a radiator, crafted from brass and stainless steel with a wooden base for easy placement and handling.
2.Exquisite Workmanship: The excellent desktop model engine produces exciting sound wave during work for eyecatching charm of the mechanical operation of the engine. It will be appreciated for umcompromising performance.
3.Perfect Model Gift:The historic vintage engine makes a perfect addition for model enthusiasts and collectors for their spare time and excellent personalized gift for mechanical fans for birthdays and Christmas. Suitable for ages 16 and up.

Engine Start Methods:
1. Check engine circuitry from the wooden base, connect the fuel tank fuel tube, and install 3 AA batteries (4.5V).
2. Fill 95# gasoline into the tank. Rotate the flywheel clockwise on the right side of the engine (the surface of the power switch) for several times to make the mixed fuel enter the cylinder. Make sure that there is no air in the fuel tube.
3. Turn on the power switch, then quickly turn the flywheel clockwise to start the engine on the right side (power switch surface).

Precautions:
1. The engine will not start if the ignition device and the cylinder compression is normal, in that case the carburetor oil needle adjustment is needed.
2.After tightening the main oil needle on the carburetor, loosen the 1/4 ring and start the flywheel to make the mixing ratio of gasoline and air normal.
3.The power switch should be turned off when the machine stops running.

Specifications:
Item No.: H73
Item Name: Holt Tractor Vertical Single Cylinder 4-Stroke OHV Gas Internal Combustion Engine Model
Material: Brass + Stainless Steel + Wood
Color: Gold
Displacement: 2.6cc
Bore: 1.3cm
Stroke: 2cm
Ignition Power Supply Voltage: AA Batteries(Not Included)
Start Method: External Force(Electric Drill) or Hand Pulling
Wood Base Size: 15 x 12 x 3cm
Engine Dimensions: 11 x 9 x 15.5cm
Engine Weight: 1500g
Package Dimensions: 20 x 20 x 9.8cm
Package Weight: 1950g

Package Included:
1x H73 Engie

1x Instruction