questions about 4 stroke runners...

few questions about 4 strokes.... do you have to warm them up like you do 2 strokes?
do u need to change the oil in them? and how oftern?
whats the petrol like say do u get alot more miles from a 200cc 4 stroke runner then you would to a 125 2 stroke runner?
are they less things to go wrong with them compared to 2 strokes?
thanks

 

yes, yes (about 4000 miles??), yes, no, a 4 stroke is mechanically more complex

 

a 4 stroke has many more parts so just stripping it down if your a newb is a no no like compared to a 2 stroke

i get an extra 40 miles to a tank minimum more on my 200 compared to what my 125 did and my 172

4000 miles or 6000kms an oil and filter change

you have to warm all bikes up. by riding gentle for a mile or so. none of this leave it to tick over lark