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Already have a mounting kit for your bicycle and need to purchase the engine only? We have what you need. This EPA approved Honda GHX50 50cc 4 stroke engine is compatible with the Grubee Whopper Stopper Stage II or stage III mounting kit.
At approximately 2.5 HP this bicycle engine gets about 100 to 150 mpg and can hits speeds of 35 MPH or more. 4 cycle engines require little maintenance. Simply add gas and oil and the engine is ready to operate. Make regular oil changes and your engine will last you for many years to come.
Engine Specifications:
| Engine Type |
Air-cooled 4-Stroke OHV Single Cylinder
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Bore x Stroke |
41.8 x 36 mm (1.65 x 1.42 in)
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Displacement |
49 cm3 (2.99 cu in)
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Compression Ratio |
8.0 : 1
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Net Horse Power Output* |
1.6kW (2.1hp) at 7,000 rpm
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Net Torque |
2.7 Nm (2.0 lbs ft) at 4,500 rpm
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PTO Shaft Rotation |
Counterclockwise (from PTO shaft
side)
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Ignition System |
Transistorized megneto ignition
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| Starting
System |
Recoil Starter
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Carburetor |
Float Type
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| Lubrication System |
Forced Splash
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Governor System |
Centrifugal Mechanical
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Air Cleaner |
Semi-dry Type
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Oil Capacity |
0.25l *0.26 US qt, 0.22 Imp qt)
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Fuel Tank Capacity (liter) |
0.77l (o.81 US qt)
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Dimensions (L x W x H) |
225mm (8.9 in) x 274mm (10.8 in) x
353mm (13.9 in)
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Dry Weight |
5.5 kg (12.1 lbs)
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* The power rating of the engine indicated in this document is the net power output tested on a production engine for the engine model and measured in accordance with SAE J1349 at 3600 rpm (7000 rpm for model GHX50). Mass production engines may vary from this value. Actual power output for the engine installed in the final machine will vary depending on numerous factors, including the operating speed of the engine in application, environmental conditions, maintenance and other variables.
Performance Curve:
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a division of Birddog Distributing, Inc.