50cc 4-Stroke Auto-Clutch Electric Start Honda-Clone ATV Engine (Missing Hardware)
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50cc 4-Stroke Auto-Clutch Electric Start Honda-Clone ATV Engine (Missing Hardware) is backordered and will ship as soon as it is back in stock.
This item is not returnable. Return Policy
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- US domestic ship to addresses only.
- Does not include expedited shipping services.
Key Features
- Carburetor joint & hardware included
Description
Description
This Honda-clone engine is used in a wide variety of applications, including all-terrain vehicles (ATVs), dirt bikes, pit bikes, go karts, and dune buggies. Fairly universal in nature, this engine will replace many Chinese made OEM factory 50cc ATV & dirt engines, from manufacturers such as Baja Motorsports, Coolster, Motovox, Roketa, and Tao Tao.
PLEASE NOTE:
The engine exhaust port has a machined cut-out side to receive a collared exhaust pipe. This is by design and not a product defect. The collared pipe fits down into the exhaust port with the diamond-shaped rhombus flange fitting over the studs.
An elbow-shaped carburetor joint (or intake manifold extension) is included with this engine. Depending on your vehicle type, this cast & machined "pipe" holds the carburetor at the proper angle and away from the engine head. Although the exhaust port with the two pre-installed mounting studs uses the same hole-spacing as the intake, this intake manifold extension does not work for the exhaust due to the cut-out on the exhaust port.
In addition, there are many different versions of 50cc 4-stroke engines used in the Chinese scooter, all-terrain vehicle, dirt bike, and go-kart market. Please be sure to check the detailed specifications and dimensions on our specifications list prior to ordering.
⚠ WARNING California Residents: Proposition 65 Warning
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Specifications
Specifications
Style: 139FMA
Engine Type: Single Cylinder 4-Stroke
Cooling: Air Cooled
Displacement: 48cc
Bore and stroke (mm): 38.8/41.4
Compression Ratio: 7.2:1
Max Power (kw/RPM): 2.0/7500
Max Torque (N.m/RPM): 3.0/7500
Nominal Power/Speed (kw/RPM): 2/7000 ±500
No Load Speed (RPM): 1500 ±100
Spark Plug: A7TC
Spark Plug Gap (mm): 0.6-0.7
Starting: Electric starter motor
Lower Engine Mounts: 11cm
Lower Mounting Bracket Through Hole Diameter: .04"
Center to Center Exhaust Mounting Bolts: 50mm
Lower Secondary Mounting Bracket: 108mm
Lower Secondary Mounting Bracket Through Hole Diameter: .337"
Upper Engine Mount Through Hole Diameter: .315"
Overall Length: 25"
Width: 13.5"
Height From Bottom Mounting Bracket to Top Air Intake: 11.25"
Treaded Drive Shaft: 3cm
Weight: 42.40lbs