I have a 90 Force 120 Model #1208F90B. The head cracked in the number 4 cylinder and wiped out the piston. I replaced the piston and rings and noticed when I measured for it that the bore was 3.375 which I read indicated a 91 model year. I search for a replacement cylinder head by Model # and found one and ordered it. It is incorrect. It is visibly different in that it has a smaller diameter chamber and the sides of the chamber are smooth where the original head has a shallow relief in each side. I'm guessing this head is for the engine with the smaller bore of 3.312. I cannot seem to find any info on when they made this head change or why. I also cant seem to find a replacement that looks like the original one that I need. Anyone have any info on this? I would give a serial number but Its no longer visible on the tag. Any other place to look for the serial#? And what exactly is CFI? It seems finding a head for this is going to be tough. Any help would be appreciated.
Thanks,
Mike
Thanks,
Mike