Hello i was wondering if some one could tell me if a 91cr 250
with bore kit to 330? will it need re jet and will fuel ratio and power band, will be changed ?less on top end?
it is a trade I am thinking about
are there any things to check on a water cooler units
no oil in water oil in water check next
starts up easygoes to wheely ,then starts to load up
if you back up on throttle , it smooths out
could carb be worn a bit or bore change tune in how do I check?
does it have reed valves ?
if it does and they are dirty, will it affect all rpm areas
compression 145 psi.at normal run temp.?
is this a good set up ???????I have seen nightmares with hand me downs
with a after market pipe and and bore run like crap and no one could fix them
is stock pipe better for allaround use
is any body running a 330bore??is this a rocket in the rough??????
Thanks marcos