Hi I am currently using stock setup supplied with my 26 mm o k o which I bought in the UK after extensive searching on the net to find a genuine Taiwan made carb not a Chinese copy ( I'm sure you've heard the horror stories ) currently fitted with 112 main jet k44 needle and 45 pilot jet but after getting some great advice from Roger at atlantictrials.com I am waiting for a new needle which is a jjh type and I am going up 2 sizes on pilot which is a 50 pilot so will try these and post my findings when fitted.if you need setup advice Atlantic trials are o k o gurus so speak to them if your having problems they are very helpful.I set my timing to 2.75 btdc after recommendations on here from members and is spot on now .
Good luck regards Darren