thanks for all your replies guys, as always much appreciated.
I'll try and answer some of your questions.
Sammidd; I'm from wolverhampton in the west mids, got my bike from cradley kawasaki.
the exhaust isn't smoking too much at all really.
I took it out over the weekend to a practice track near me.
at the moment i would say the bottom end is about right. sounds clear and crisp. the top end is still a little bit rough but that is not a fair analysis as i think it's the midrange where I am having the problems. i would say it's from 1/4 -3/4 range where it is at it's worst. so, i have changed the needle position to 1!!!!!
the reason i think this, is when i went out on the track first time around i fouled up my plug after two laps i bought it in and put in another plug, it wasn't brand new but it wasn't completely fouled, it was just a very dark brown (so it was on it's way out) when i fired it up again, it kicked over first time as always, no soon as i rev and get into the the second corner of the throttle range it starts to bog, then when i let the throttle go, it starts to clear up, after a bit of slight reving and idling it clears up and I am good to go.
unfortunatley even though i was on the Ragged edge of the power pand it did eventually foul up that plug too (but the plug was far from perfect anyway)
tiylu,
Is the BR8EG a safe plug to use in the KX125 04? does anyone else think this may be worth a try.
I was thinking about trying an 8 but as my manual doesn't reccomend going any hotter than a 9 i wasn't sure.
I changed my ratio from 32:1 which is 150ml of oil to 5 litres of petrol? to 40:1 which is 125ml of oil to 5 litres of petrol?
maybe it's worth trying 32:1 again??
so, at the moment i'm pretty much as lean as you can get.
main:380
pilot: 35
air screw: 3 and half turns out!!!!
clip pos: 1 (very top position)!!