2t very impt for 2 stroke bike.. FOr 2 stroke 2T must use Good
1.. Engine oil can use cheap 1..
if you use cheap 2t, that will result in piston jam which is very
dangerous and costly. Usually when piston jam, will wheel
lock.
When piston and block damage, if wan to change also not cheap. Full
Set i tink need $150.
My friend mentioned before the more smelly the 2t is, the better it
is. BTW dun even buy 2t from AH BOY hor...
As for the bike canot go above 140km, there are alot of
possibilities leh.. what plate is your bike and what is the
mileage. WHen is the last time you did servicing such as washing
carburettor, changing spark plug etc.. Think it is better to pay
motortiam a visit to check on your bike.