hi i have a cox Orion ride on with a 12.5hp B&s motor model 2030400 dom 9340(R)
and my question is it has a adjustment screw under the carby bowl can anyone tell me how many turns out it needs to be to start tuning. as when i got it it was screwed in and he said it wouldn't run properly and he didn't know why.now i own it.

Last edited by blackriverfish; 12/05/14 06:23 AM.