Just found your site. What a great resource and you should be commended for it.
I have 2 older mowers with differing problems. I would like to make 1 out of 2 by putting ssome parts from 1 to the other.
Numbers on the air filter housing of number 1 is LMO 45ap2 that we have had since new in about 1979 and the 2nd is MU 342A1 and I have no idea what the history of it is. Any clues on age etc?
Are the carby's interchangeable and what series are they? Will the link you provided cover these 2 motors?