1987 kawasaki VN 750 Vulcan "set air fuel mix 1985" Questions

...set idle on my 1985 Honda sabre I looked on both sides and do not see a adjustment On the left side, left bottom of the carb is a black button, if you think of air/fuel mix, there are 2 holes on each ...

...air after the carb. This leans the fuel mix and causes the fast idle. It also limits power as a lean mix going into the engine. I suggest replacing all rubber and seals between the carb and the ...