I purchased a new in box merc 9.9 4 stroke eng. I ordered and installed from mercury by serial # a tiller kit that included a new carb.after mounting on boat that is a14ft polarkraft fishing boat. There is a 10 hp max on lake. anyway the motor starts and idles great but has no top end power. The throtle linkage is all the way at carb full stop but it feels like only half power.
Anybody have any ideas? I never ran eng before installing tiller kit and I know the boat is underpowered but its really bad. Thanks in advance. Vince