hilo_kawika
New member
I have two new (35 hours r
I have two new (35 hours running time) 2007 Johnson (made by Suzuki) 15HP 4-stroke outboards. Both of them idle smoothly at 1000rpm and also perform well above ~2800 rpm. But from 1500rpm to ~2500rpm they cough and sputter and sometimes even die. The mechanic that installed the motors is mystified and Johnson headquarters simply refers me to the mechanic.
I would really be grateful for any suggestions that anyone would be willing to offer in terms of a systematic approach toward solving the problem.
I have two new (35 hours running time) 2007 Johnson (made by Suzuki) 15HP 4-stroke outboards. Both of them idle smoothly at 1000rpm and also perform well above ~2800 rpm. But from 1500rpm to ~2500rpm they cough and sputter and sometimes even die. The mechanic that installed the motors is mystified and Johnson headquarters simply refers me to the mechanic.
I would really be grateful for any suggestions that anyone would be willing to offer in terms of a systematic approach toward solving the problem.
