Advantages
1 Simple mechanism.
2 Easy to start.
3 lt gives one power stroke per revolution of the crankshaft.High power to weight ratio and significant power boost.
4 lt has no valves, so complicated valve actuating mechanism not required.
5 lt is light weight,30% lighter than the 4-stroke engine.
6 lt has few moving parts, so compact and simple construction.
7 No oil sump for lubrication. Petroil is used for lubrication so it can be used in all positions.
8 Low maintenance cost.
9 The work required to come over the friction of suction and exhaust is saved.
10 As there is a power stroke in every revolution, the turning moment is uniform. Light flywheels are required.
Disdvantages
1 Incomplete combustion, carbon depoist on the piston head and exhaust port.
2 Unstable idling.
3 Scavenging problems.
4 Less efficient in terms of fuel economy due to part of the unburned charge is rejected during transger phase.
5 More wear and fragile than the four-stroke engine. Shorter life span.
6 They are liable to cause high consumption of lubricating oil.
7 Worst hydrocarbon and noisy operation.
8 High vibration and noisy operation.
9 Less thermal and volumetric efficiency.
10 Narrow power band compared to a four-stroke engine.
About 49cc 2 stroke engine
“49cc 2 stroke engine diagram”
“49cc 2 stroke engine horsepower”
“49cc 2 stroke engine kit”
“49cc 2 stroke engine upgrades”
“49cc 2 stroke engine specs”
