Home › Forum › Ask A Member › 1931 evinrude light twin model 402 4 hp › Re: 1931 evinrude light twin model 402 4 hp
March 17, 2017 at 10:01 pm
#54482
Per Peter Hunn’s book "The Old Outboard" 2nd ED page # 266
Your motor takes a Champion 6M spark Plug gapped at .025"
Many local AOMCI chapters have members who have built re magnetizer equipment.
I believe a MOB member can do this as they have hosted clinics on it etc…