hi most of you probably still remember me when i had issues with my a15 carb on my a12 engine that kept stalling off idle

i had rectified the problem by using a larger primary main jet from size 101 to 130 but this used way too much fuel and fouled my plugs!

so yesterday i put in size 110 jets and i can make it run without stalling by having the mixture screw in at around 2 and half turns out but then the engine wont idle!

i dont know how to explain it but when it try to increase the idle speed it increases but the rev is all over the place goes from 800 to 1000rpm and the engine isnt smooth it sort of sound and fells like its shaking realy fast!

i can get it to idle fine if i go to around 4 turns out of the mixture screw but then off idle it hesitates or dies!


any ideas why this is happening when adjusting th mixture screw and why either dosnt work in one way or the other???

Thanks!