This kit features a 49cc HuaSheng motor with Clutch Flyweight for 5/8 Keyed Shaft. Using a belt drive single speed transmission for smooth acceleration. This kit includes a 2 piece wide crank kit, if the bike has a 1 piece crank set a conversion bottom bracket will need to be used (not included).
4 Stroke engine kits are very different from 2 stroke kits in many ways. Building a 4 stroke bike is a little more involved then the two strokes, the extra effort is worth it. Pull start engine, not push start like the 2 strokes. Overall this type of engine is more reliable with more power and torque. With some of the larger cc motors, the top speeds far exceed the 2 strokes. Since these motors are larger in cc they are also larger in size and weight. Almost all bicycles will need to use a wider crank setup to clear the motor, the stock arms and pedals will hit the motor when pedaled as a regular bike. One piece cranks will also require a bottom bracket conversion set as well (not included).
This style of the engine might need slight modification to the bikes and will not fit all frames.
Advantages of 4 Stroke Bicycle engine kits:
Use straight gas (no mixing oil with gas)
More Horsepower
More Torque
Quieter Engine
Click here for the Instruction Manual
This 4-Stroke Motorized Bicycle Kit includes:
26" Hyper Cruiser Bike
HuaSheng 49cc with 5/8" Straight Shaft Engine (4-Stroke)
100 Tooth Belt Transmission for Keyed Shaft
2.5 L Gas Tank
Gasoline Tank Switch (AL)
Fuel Line #2
Fuel Filter
Improved Wide Pedal Crank
44 Tooth Sprocket
Pineapple Bushing
Accelerograph Throttle Handle
Throttle Cable 50"
Mounting Plate
415 Heavy Duty Chain
Idler Pulley Chain Tensioner
Chain Guard
Belt Remover/Adjusting Tool
Bottom Bracket Conversion Kit
MOTOR SPECS:
Engine Type: Air-cooled 4-Stroke OHV Single Cylinder
Max Power(kw/r/min): 1.5 KW / 2 HP / 6800
Fuel Consumption(g/kw·h): ≤480
Fuel Consumption(L/h): 0.78
LWA(dB(A)): 101
Net Weight(kg): 7
Displacement(cc): 49.1
Oil Capacity(mL): 250
Ignition System: TCI
Compression Ratio: 7.4
Carburetor: Float
Starting System: Recoil
Approximate Dimensions: Height - 9 1/2", Width - 11", Length - 9"