jetting on 31k

[strat]

I've got Nikons on my 31k LC2, it runs sweet but I think for the engines life I should up jet from the standard 240 mains.......so do people agree 250 or bigger, everything else is standard, though I might wip out the rubber inlet pipe (silencer) from the air box.
I'm just about to put a 16 tooth front sprocket on it (cheers Norbo) so it will spend a lot of its time running at high revs.....I'm not a sympathetic kind of guy ;D

cheers, strat.

[Norbo]

I would go 260 and ajust the oil pump a turn to add a little more better to have to much then run week.