maybe the rings need to seat a bit better? how many km's are on the odie?
best way to adjust a carb is to warm up the scooter
real good (15 min ride ) .
adjust mix screw until scooter runs fastest (adjust 1/8 turn at a time)
wait a bit between adjustments and see / hear the revs pick up /die
then readjust the idle to about 1800 rpm if needed.
ride for a bit and do a plug chop
now if your close to sea level and your in a place that has 90%+
humidity(cloudy) on cold days and then real hot days , blue sky& birds fly high.
that can be a royal pain in the rump to tune
i,m in a marine enviroment(a island) near the canadian& us border
so i have to re tune if i want tip top performance always.
i wonder how much performance you really get from the pipe and how much
is just for looks. most real expansion pipes & silencers don't have that
emissions part ... its that extra bit of pipe on the ehaust manifold.
sweet bike though. are you going to any moding other than engine/ clutch stuff?
it would look wild with some light green(maybe lime green) or light purple rims.
with maybe a real short fly screen for a bit of a racey look.
you might try some sliding weights, go 1-2 grams higher over stock
for a cheap tune to get some more top end
oilyhans