Hello...i have recently purchased a 1971 Seaswirl with a 4cyl 120hp Mercruiser i/o...I have been battling problems with this boat but am making ground....I have ran into a snag and am stuck...<br /><br />The motor is running beatifully first time start evertime and idles at about 750-800rpm...However when I go to engage either forward or reverse the motor lags and dies...I have disabled the Shift Interrupt Switch (temp) to see if that was the problem...with that done, I was able to get it to engage if I slowly feather the throttle, it then engages and will move, however I have to do this extremely slow...<br />From previous topics I am kind of leaning towards the carb...but am not 100% sure..<br />Any help/ideas would be greatly appreciated..<br />(also to make sure I didnt bonehead anything...the Shift interrupt switch is in the throttle handled right???)<br /><br />Thanks in advance!