hmmm ok for tuning wise its very easy to check,cos if tuning is
wrong then ur sparks plugs burns faster then before and u need to
change it too frequently...tuning will affect lots in a bike speed
and actually a good tuning your spark plug will last longer ...dun
say u drag like mad lahz~anyway for chain maintainance,remember to
degrease it every 2000-3000km of riding [when washing bike]
degrease liao then use chain Lube dun use chain oil or any other
oils~ and remember if u always drag ur bike u have to tighten it
faster...everytime u drag the chain will like loose abit...so
beware....anyway smaller tyres gives u about the same top speed,the
real think that affect ur speed is ur CDI,cos its where ur power
cuts come in...anyway how fast u want ur 150CC to be? my Nsr150rr
with a really good tuning,open exhuast,power-filter and 90-110
tyres top speed = 200km/hr [noted by friend who is riding a 929
behind me when i trying top speed in malaysia] my metre was at
220km/hr [so if i'm not wrong i believe 150cc bikes is different
from bigger bikes by 20km/hr]
anyway a fast bike comes from a good condition and well maintained
owner,and a good mechanic who modifies it and most important
Skill...try playing with the clutch at 180km/hr-190km/hr and see if
u can reach higher range then b4
