someone please help me, i have been fighting a 1973 Johnson 65 hp 3 cyl outboard. originally i didn't have spark to the #2 cyl. i traced the problem to the trigger base under the stater and replaced the trigger base, now i have good spark on all 3 cyl. i have new gas, clean carbs, have sync'ed the carbs to the initial start mark on the throttle cam, removed control cables, is in neutral, but i have to advance the ignition all the way of my idle speed adjustment screw to just start the motor and rough idle. i verified cyl 1 is at tdc with the flywheel mark and the flywheel is correctly torqued. i do not see any other timing adjustment other than this idle speed adjustment on the throttle/timing advance. if i move the timing base linkage to all the way in of my idle screw adjustment, then i can idle but that leaves very little range of movement to wide open throttle. i feel like the timing base is positioned too retarded but im not sure. i put the new one on the same as the old one and connected the linkage with a little slack and the throttle cam lined up with the carbs completely closed and synced together. what am i missing here?? any help is greatly appreciated!