Mikuni Carb Mixture Setup

[gaz]

I've read the mikuni sticky before you ask and I didnt find it that helpful, so anyway

I have a 125cc Gen 2 with a 26mm Mikuni carb

It runs too rich and the mixture screw is under the carb and too close to the head to adjust it whilst its running, so

Any tips on a stock setup?

For example, screw all the way in then say 2 turns out?

(Tried that but its runs too boggy and rich again)

Thanks

[bra69ers]

there is a special screwdriver that you can get which is angled so you will get to the screw. if running rich screw in. only a bit at a time though.

[gaz]

What screwdriver is this? I have a 90º screwdriver and a small ratchet 90º screwdriver and I cant get in there for shiz. The only way I could do it, is superglue the ratchet bit into the screw and do it that way, even then its abit much because superglue isnt made to resist torque forces.

[Despise]

I know the problem, so awkward. Use a small screwdriver piece (the ones you get with drills) then use a 10" spanner on it.

crude way of doing it yes but it works

[gaz]

ok cheers for that, i'll try give that a pop in a bit, that is honestly one of the stupidest places i've seen a screw. I'll let you know how it goes

[gaz]

couldnt get to it using that method im afraid, I even tried supergluing a screw bit in there so I could adjust it later but it wouldnt stick.

So, I have set it at 1 and a half turns out, it runs alright but not how it should do, it pops and cracks a fair bit, I think this is too lean correct?

[Despise]

Originally Posted by gaz

ok cheers for that, i'll try give that a pop in a bit, that is honestly one of the stupidest places i've seen a screw. I'll let you know how it goes

indeed stupid design. The screw on my old chink carb was in a better place lol