I bought a 1986 25hp motor this past winter and it had been sitting for over a year. I have cleaned and rebuilt the carb, checked the compression, replaced the fuel pump, checked the power pack and coils for cracks, replaced the fuel tank and hose, and checked the spark(nice blue spark). The problem is the motor idles just fine (i have taken the motor out and done the carb adjustments) sometimes not all the time when I increase the trottle the engine wants to sputter and almost stall. Is there something I'm over looking? Any help would be greatly welcomed.
