4 stroke n 2 stroke Bike
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hi, im new here, i just gt my licence planning to buy a bike but dunnno to choose between a 4 stroke bike (eg, phantom) or a 2 stroke (eg, aprilla).
so, can any PROS( i noe here gt a lot) tell me,
1)wat is the difference between a 4 stroke n a 2 stroke bike?
2)how they work?
3)which is better?
4)why 2 stroke need 2-T?
i noe i might sound bery stupid
but, i asked many new bikers abt my questions, they all also dunno 
... so i think u Pros here might b able to help 
!
Thanks 4 reading....
BUT,
THANKS A LOT (to those Pros who reply)
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1)wat is the difference between a 4 stroke n a 2 stroke bike?
4-stroke supposedly burns cleaner coz you don't need to burn motor oil with the fuel... there is a flywheel involved... there are 4 strokes in the 4 stroke, one being the power stroke...
the 2-stroke is usually more powerful as one of the 2 strokes is a power stroke..
best go look at the architecture of the engines.. easily done with a search in the internet..
2)how they work?
see the above..
3)which is better?
depends on what you like.. and how they are built... the 4-stroke is smoother.. but has less power..
the 2-stroke burns dirtier and louder.. but if there's an orbital sarich bit involved, it burns really clean...
4)why 2 stroke need 2-T?
pistons need lubrication.. -
hi ... i am not really a old bird but i have some of the best 2 strokers ard
hahahaaa
...
basically it takes 4 steps for a engine to move .. i dun really know the excact words. i think it goes something like Intake , Compress , Combustion , Out take ..
the main difference is between 2 strokers and 4 strokers is that 2X completes the above 4 steps in 2 stroke ..... 4X completes the above 4 steps in 4 steps.
2 strokes is has more rev then a 4 stroke .. in the sense that it goes 2 cycles of the above steps when the 4 stroke go 1 cycle ... 4 stroke has more torge then a 2 stroke cuz it takes 4 strorkes to do a cycle instead of 2 stroke like a 2 stroke engine.
Why 2 stroke needs 2t .. it uses it as a lube between the piston and the cyclinder .. and 4 stroke uses engine as a lube between the piston and cyclinder
the 2X engine uses a slavage cycle for the fuel intake and the 4X uses a valve system and timming chain for the fuel intake ...
thhe smoke from the 2X engine is the burn 2T and the carbon is the leftover fuel ... it is almost impossible for 100% of the fuel to be used in a 2X engine .. hence thats why 4 stroke saves more petrol then the 2 stroke ...
which is better .... it really depends on what u want the bike for ...
pure transport ...
fun ... -
i guess what i have to say,is already been said out.../me just here to peep...
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let mi make it simple
4 stroke means 4stroke to make 1 complete cycle of an engine
1)intake stroke
2)compression stroke
3)power stroke
4)exhaust stroke
2 stroke is combining the 4 strokes in 2 to make engine more efficient. (same cc 2 stroke more power)
As for 2T because it is use to lube ur valve and engine as ur gear oil does not enters ur cylinder, it only lude ur gears etc.
As for how engine works i think its rather difficult to explain it words there is some web site on this topic u can find out more from there
cheers -
which is better???,..
hmm,personally ive tried both 2 stroke and 4 stroke,...my opinion is 4 stroke is better in terms of fc,economy and reliability.but a 2 stroke is for performance. so which on is ur piriority??if i were to choose ,i will choose a 4 stroke bike,...and if u want a performance bike just get a bigger 4 stroke cc bike,... .for ur info the world fastest production bike is a 4 stroke,.. -
Hope these 2 sites help!
For 2 strokes
http://science.howstuffworks.com/two-stroke.htm
for 4 strokes
http://science.howstuffworks.com/engine.htm
The biggest problem with 2 stroke is the 2T, alot cause white smoke, too little, piston jammed. And you have to monitor the 2T level also, if forget jialat, 2T finish, engine overheat, piston jammed.
Common 2 stroke bikes in Singapore, just to name a few:-
Yamaha RXS, RXK, RXZ
Honda Phatom 150,
Aprila RS125
Most Class 2B sports bike are 2 strokers.