Is the 400M (in my case a 1961) a 2 stroke or a 4 stroke engine ? If its a 2 stroke, is it 50:1 or 40:1 or something else ? Any info on the internet anywhere that I can read up on ? Thanks for the previous link concerning finding the year and also parts available ...
I need to know for various reasons the year of this engine that I just picked up :
Mercury 45 HP Four
Merc 400 M Kiekhaefer
serial # 1386733
The boat is a Thunder Craft V144, does anyone know the year ?
If anyone can send me any info on this engine I would greatly appreciate it !