While we are on the subject (i'm glad troyboy brought it up...), my shee also std with now 310 main jets, PC platinum pipes & silencers and dura blue airfilter with no lid.
My mix at the moment is 40:1, i am using TTS 2 stroke oil(castrol product and best synthetic oil on the market - by us at least ) and running 95 octane leaded, as per manufacturers instruction on the tank.
The bike goes like hell , but it struggles with cold start. It really takes about 10 kicks to get it started (with choke out) and then it idles and dies and i have to go through same procedure again, untill there is enough heat to get the revs up - from there it's perfect. What worries me is the lean/rich issue...i spoke to the mechanic that services my shee and did the built over from stock (then it started very easy)to current(starts very easy once warm and riding - 1 kick sitting), and he said i must bring it in as it might be the air screw that needs turning...
plse give me some comments - i'm at sea level, and temp ranges from 15-30 degrees celcius
PS: I will try the choke thing when i'm out riding again this wend..tks superchicken