Home › Forum › Ask A Member › 9.9 Johnson Carb Question › Re: 9.9 Johnson Carb Question
June 16, 2017 at 6:12 pm
#59792
There were also differences in the reed valve opening and the exhaust tuning. I don’t mean to discourage you, but the 9.9 model always seemed to idled better than the 15. . . 😕

