I am currently rebuilding my 1964 Johnson 9.5 and the exhaust housing is cracked and I need new (used) one. The exhaust housing part number for my motor is 380043 (same for the 1965 as well). It changes in 1966 to 381280. Does anyone know the difference (if there is one) between the 2...
I have a 1964 johnson seahorse MQ-10s. I have been using it for 20+ years and never had any problems with it. It hasn't been run for about five years though. I put it in a barrel yesterday to get it running again. Thats when I noticed that it had a hole in the cylinder head. see picture...
