Old(ish) bike jetting?

[el chupacabra]

Hi all

have had my rg for about 8 months now and i was wanting to know if the jetting may get richer over time????? as i have been to track days and the straight line speed isn't there (repaired powervalves, have been adjusted 2mm below flush with case... and i have gotten a new piston too + new main bearings and seals). the old piston was very very black with carbon, same as factory plug and the bike does get well trashed after it is warmed up. using castrol tts oil if the helps. any ideas????

just wanting to know for next track day
(just posted here because not sure if carb issue and couldn't find old info in other threads)
also what is a good trackday time around manfield not long course?

thanks.

[Flip]

Send a PM to F5 Dave in Wellywood, he knows more about 2 stroke tuning than anybody I know. He is also not a bad old cock.

[el chupacabra]

Thanks, but unfortunately the site won't let me pm yet . so It would be nice if anyone could post here haha